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<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<title>bee.gs的博客</title>
<subtitle>啦啦啦，啦啦啦，我是搬砖的小行家</subtitle>
<link href="/atom.xml" rel="self"/>
<link href="http://bee.gs/"/>
<updated>2017-05-20T01:43:08.561Z</updated>
<id>http://bee.gs/</id>
<author>
<name>bee.gs 博客</name>
<email>coding99@163.com</email>
</author>
<generator uri="http://hexo.io/">Hexo</generator>
<entry>
<title>people.run</title>
<link href="http://bee.gs/2017/05/18/feel/life-run/"/>
<id>http://bee.gs/2017/05/18/feel/life-run/</id>
<published>2017-05-18T12:00:00.000Z</published>
<updated>2017-05-20T01:43:08.561Z</updated>
<content type="html"><![CDATA[<h2 id="people-run"><a href="#people-run" class="headerlink" title="people.run"></a>people.run</h2><iframe frameborder="no" border="0" marginwidth="0" marginheight="0" width="330" height="86" src="//music.163.com/outchain/player?type=2&id=2920947&auto=0&height=66"></iframe>
<h3 id="还记得我的-people-run"><a href="#还记得我的-people-run" class="headerlink" title="还记得我的 people.run"></a>还记得我的 <a href="http://people.run" target="_blank" rel="external">people.run</a></h3><h3 id="不知道啥时候才有精力去弄"><a href="#不知道啥时候才有精力去弄" class="headerlink" title="不知道啥时候才有精力去弄"></a>不知道啥时候才有精力去弄</h3><h3 id="也许是很多年后的事了"><a href="#也许是很多年后的事了" class="headerlink" title="也许是很多年后的事了"></a>也许是很多年后的事了</h3><p><img src="/assets/img/article/run.jpg" alt="img8"></p>
]]></content>
<summary type="html">
<h2 id="people-run"><a href="#people-run" class="headerlink" title="people.run"></a>people.run</h2><iframe frameborder="no" border="0" margi
</summary>
<category term="life" scheme="http://bee.gs/tags/life/"/>
</entry>
<entry>
<title>自定义功能模块设计</title>
<link href="http://bee.gs/2016/12/20/tech/%E8%87%AA%E5%AE%9A%E4%B9%89%E5%8A%9F%E8%83%BD%E6%A8%A1%E5%9D%97%E8%AE%BE%E8%AE%A1/"/>
<id>http://bee.gs/2016/12/20/tech/自定义功能模块设计/</id>
<published>2016-12-19T16:00:00.000Z</published>
<updated>2016-12-27T14:58:17.249Z</updated>
<content type="html"><![CDATA[<h2 id="自定义功能模块设计"><a href="#自定义功能模块设计" class="headerlink" title="自定义功能模块设计"></a>自定义功能模块设计</h2><p>项目搭建架构图在线地址<a href="http://www.processon.com/view/5850b60de4b05021859c4232" target="_blank" rel="external">点击查看架构图</a>。</p>
<a id="more"></a>
<p>数据表设计如下:</p>
<figure class="highlight sql"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div><div class="line">33</div><div class="line">34</div><div class="line">35</div><div class="line">36</div><div class="line">37</div><div class="line">38</div><div class="line">39</div><div class="line">40</div><div class="line">41</div><div class="line">42</div><div class="line">43</div><div class="line">44</div><div class="line">45</div><div class="line">46</div><div class="line">47</div><div class="line">48</div><div class="line">49</div><div class="line">50</div><div class="line">51</div><div class="line">52</div><div class="line">53</div><div class="line">54</div><div class="line">55</div><div class="line">56</div><div class="line">57</div><div class="line">58</div><div class="line">59</div><div class="line">60</div><div class="line">61</div><div class="line">62</div><div class="line">63</div><div class="line">64</div><div class="line">65</div><div class="line">66</div><div class="line">67</div><div class="line">68</div><div class="line">69</div><div class="line">70</div><div class="line">71</div><div class="line">72</div><div class="line">73</div><div class="line">74</div><div class="line">75</div><div class="line">76</div><div class="line">77</div><div class="line">78</div><div class="line">79</div><div class="line">80</div><div class="line">81</div><div class="line">82</div><div class="line">83</div><div class="line">84</div><div class="line">85</div><div class="line">86</div><div class="line">87</div><div class="line">88</div><div class="line">89</div><div class="line">90</div><div class="line">91</div><div class="line">92</div><div class="line">93</div><div class="line">94</div><div class="line">95</div><div class="line">96</div><div class="line">97</div><div class="line">98</div><div class="line">99</div><div class="line">100</div><div class="line">101</div><div class="line">102</div><div class="line">103</div><div class="line">104</div><div class="line">105</div><div class="line">106</div><div class="line">107</div><div class="line">108</div><div class="line">109</div><div class="line">110</div><div class="line">111</div><div class="line">112</div><div class="line">113</div><div class="line">114</div><div class="line">115</div><div class="line">116</div><div class="line">117</div><div class="line">118</div><div class="line">119</div><div class="line">120</div><div class="line">121</div><div class="line">122</div><div class="line">123</div><div class="line">124</div><div class="line">125</div></pre></td><td class="code"><pre><div class="line"><span class="comment">--自定义数据源表</span></div><div class="line"><span class="keyword">create</span> <span class="keyword">table</span> CUSTOM_DATA</div><div class="line">(</div><div class="line"> <span class="keyword">id</span> primary <span class="keyword">key</span> <span class="built_in">VARCHAR</span>(<span class="number">64</span>) <span class="keyword">not</span> <span class="literal">null</span>,</div><div class="line"> <span class="keyword">name</span> <span class="built_in">VARCHAR</span>(<span class="number">200</span>),</div><div class="line"> <span class="keyword">sql</span> <span class="keyword">CLOB</span>,</div><div class="line"> <span class="keyword">url</span> <span class="built_in">varchar</span>(<span class="number">2000</span>),</div><div class="line"> method <span class="built_in">varchar</span>(<span class="number">10</span>),</div><div class="line"> data_source <span class="built_in">varchar</span>(<span class="number">30</span>),</div><div class="line"> page <span class="built_in">char</span>(<span class="number">1</span>);</div><div class="line"> control_type char(1);</div><div class="line"> source_type char(1);</div><div class="line"> description varchar(2000),</div><div class="line"> status CHAR(1),</div><div class="line"> create_id varchar(64),</div><div class="line"> create_time timestamp,</div><div class="line"> modify_id varchar(64),</div><div class="line"> modify_time timestamp</div><div class="line">)</div><div class="line"></div><div class="line"><span class="comment">--表 注释</span></div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">table</span> CUSTOM_DATA <span class="keyword">is</span> <span class="string">'自定义数据源表'</span>;</div><div class="line"><span class="comment">--列 注释</span></div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.id <span class="keyword">is</span> <span class="string">'uuid主键'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.name <span class="keyword">is</span> <span class="string">'名称'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.sql <span class="keyword">is</span> <span class="string">'SQL语句'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.url <span class="keyword">is</span> <span class="string">'请求地址'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.method <span class="keyword">is</span> <span class="string">'请求方式'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.data_source <span class="keyword">is</span> <span class="string">'数据库连接池'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.page <span class="keyword">is</span> <span class="string">'0不分页,1分页'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.control_type <span class="keyword">is</span> <span class="string">'控件类型:0、table 1、chart'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.source_type <span class="keyword">is</span> <span class="string">'数据源类型：0、sql 1、http请求'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.description <span class="keyword">is</span> <span class="string">'描述'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.status <span class="keyword">is</span> <span class="string">'状态'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.create_id <span class="keyword">is</span> <span class="string">'创建人'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.create_time <span class="keyword">is</span> <span class="string">'创建时间'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.modify_id <span class="keyword">is</span> <span class="string">'修改人'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_DATA.modify_time <span class="keyword">is</span> <span class="string">'修改时间'</span>;</div><div class="line"></div><div class="line"><span class="comment">-- 注释 自定义页面page表或者组件</span></div><div class="line"><span class="keyword">create</span> <span class="keyword">table</span> CUSTOM_PAGE</div><div class="line">(</div><div class="line"> <span class="keyword">id</span> primary <span class="keyword">key</span> <span class="built_in">VARCHAR</span>(<span class="number">64</span>) <span class="keyword">not</span> <span class="literal">null</span>,</div><div class="line"> <span class="keyword">name</span> <span class="built_in">VARCHAR</span>(<span class="number">100</span>),</div><div class="line"> html_code <span class="keyword">CLOB</span>,</div><div class="line"> rest_id <span class="built_in">VARCHAR</span>(<span class="number">32</span>),</div><div class="line"> query_ids <span class="built_in">VARCHAR</span>(<span class="number">2000</span>),</div><div class="line"> <span class="keyword">type</span> <span class="built_in">char</span>(<span class="number">1</span>),</div><div class="line"> description <span class="built_in">VARCHAR</span>(<span class="number">2000</span>),</div><div class="line"> create_id <span class="built_in">varchar</span>(<span class="number">64</span>),</div><div class="line"> create_time <span class="keyword">timestamp</span>,</div><div class="line"> modify_id <span class="built_in">varchar</span>(<span class="number">64</span>),</div><div class="line"> modify_time <span class="keyword">timestamp</span></div><div class="line">)</div><div class="line"></div><div class="line"><span class="comment">-- 表注释 </span></div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">table</span> CUSTOM_PAGE <span class="keyword">is</span> <span class="string">'自定义页面page表'</span>;</div><div class="line"><span class="comment">-- 列注释</span></div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_PAGE.id <span class="keyword">is</span> <span class="string">'uuid主键'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_PAGE.name <span class="keyword">is</span> <span class="string">'名称'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_PAGE.html_code <span class="keyword">is</span> <span class="string">'存储页面所有代码'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_PAGE.rest_id <span class="keyword">is</span> <span class="string">'此id为32位数字,开放给其它平台用'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_PAGE.query_ids <span class="keyword">is</span> <span class="string">'query的id集合, 用分号隔开,方便统计用'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_PAGE.type <span class="keyword">is</span> <span class="string">'页面类型:0代表页面 主要用于APP中 2代表组件 用于页面局部自定义功能'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_PAGE.description <span class="keyword">is</span> <span class="string">'页面使用说明'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_PAGE.create_id <span class="keyword">is</span> <span class="string">'创建人'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_PAGE.create_time <span class="keyword">is</span> <span class="string">'创建时间'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_PAGE.modify_id <span class="keyword">is</span> <span class="string">'修改人'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_PAGE.modify_time <span class="keyword">is</span> <span class="string">'修改时间'</span>;</div><div class="line"></div><div class="line"><span class="comment">-- 自定义APP</span></div><div class="line"><span class="keyword">create</span> <span class="keyword">table</span> CUSTOM_APP</div><div class="line">(</div><div class="line"> <span class="keyword">id</span> primary <span class="keyword">key</span> <span class="built_in">VARCHAR</span>(<span class="number">64</span>) <span class="keyword">not</span> <span class="literal">null</span>,</div><div class="line"> <span class="keyword">name</span> VARCHAR2(<span class="number">100</span>),</div><div class="line"> icon VARCHAR2(<span class="number">100</span>),</div><div class="line"> description <span class="built_in">VARCHAR</span>(<span class="number">2000</span>),</div><div class="line"> <span class="keyword">status</span> <span class="built_in">char</span>(<span class="number">1</span>),</div><div class="line"> create_id <span class="built_in">varchar</span>(<span class="number">64</span>),</div><div class="line"> create_time <span class="keyword">timestamp</span>,</div><div class="line"> modify_id <span class="built_in">varchar</span>(<span class="number">64</span>),</div><div class="line"> modify_time <span class="keyword">timestamp</span></div><div class="line">)</div><div class="line"><span class="comment">-- 表注释</span></div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP.category <span class="keyword">is</span> <span class="string">'应用标签'</span>;</div><div class="line"><span class="comment">-- 字段注释</span></div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP.id <span class="keyword">is</span> <span class="string">'uuid主键'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP.name <span class="keyword">is</span> <span class="string">'名称'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP.icon <span class="keyword">is</span> <span class="string">'图标'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP.description <span class="keyword">is</span> <span class="string">'描述'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP.status <span class="keyword">is</span> <span class="string">'状态0启用 1禁用'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP.create_id <span class="keyword">is</span> <span class="string">'创建人'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP.create_time <span class="keyword">is</span> <span class="string">'创建时间'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP.modify_id <span class="keyword">is</span> <span class="string">'修改人'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP.modify_time <span class="keyword">is</span> <span class="string">'修改时间'</span>;</div><div class="line"></div><div class="line"><span class="comment">--app和页面建立关联 菜单表</span></div><div class="line"><span class="keyword">create</span> <span class="keyword">table</span> CUSTOM_APP_PAGE</div><div class="line">(</div><div class="line"> <span class="keyword">id</span> primary <span class="keyword">key</span> <span class="built_in">VARCHAR</span>(<span class="number">64</span>) <span class="keyword">not</span> <span class="literal">null</span>,</div><div class="line"> <span class="keyword">name</span> VARCHAR2(<span class="number">100</span>),</div><div class="line"> icon VARCHAR2(<span class="number">100</span>),</div><div class="line"> app_id <span class="built_in">VARCHAR</span>(<span class="number">64</span>) <span class="keyword">not</span> <span class="literal">null</span>,</div><div class="line"> page_id <span class="built_in">VARCHAR</span>(<span class="number">64</span>) <span class="keyword">not</span> <span class="literal">null</span>,</div><div class="line"> description <span class="built_in">VARCHAR</span>(<span class="number">2000</span>),</div><div class="line"> <span class="keyword">status</span> <span class="built_in">char</span>(<span class="number">1</span>),</div><div class="line"> create_id <span class="built_in">varchar</span>(<span class="number">64</span>),</div><div class="line"> create_time <span class="keyword">timestamp</span>,</div><div class="line"> modify_id <span class="built_in">varchar</span>(<span class="number">64</span>),</div><div class="line"> modify_time <span class="keyword">timestamp</span></div><div class="line">)</div><div class="line"><span class="comment">-- 表注释</span></div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP_PAGE.category <span class="keyword">is</span> <span class="string">'app菜单表'</span>;</div><div class="line"><span class="comment">-- 字段注释</span></div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP_PAGE.id <span class="keyword">is</span> <span class="string">'uuid主键'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP_PAGE.name <span class="keyword">is</span> <span class="string">'名称'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP_PAGE.icon <span class="keyword">is</span> <span class="string">'图标'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP_PAGE.app_id <span class="keyword">is</span> <span class="string">'app_id和APP表建立关联'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP_PAGE.page_id <span class="keyword">is</span> <span class="string">'page_id和页面表建立关联'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP_PAGE.description <span class="keyword">is</span> <span class="string">'描述'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP_PAGE.status <span class="keyword">is</span> <span class="string">'状态0启用 1禁用'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP_PAGE.create_id <span class="keyword">is</span> <span class="string">'创建人'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP_PAGE.create_time <span class="keyword">is</span> <span class="string">'创建时间'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP_PAGE.modify_id <span class="keyword">is</span> <span class="string">'修改人'</span>;</div><div class="line"><span class="keyword">comment</span> <span class="keyword">on</span> <span class="keyword">column</span> CUSTOM_APP_PAGE.modify_time <span class="keyword">is</span> <span class="string">'修改时间'</span>;</div></pre></td></tr></table></figure>]]></content>
<summary type="html">
<h2 id="自定义功能模块设计"><a href="#自定义功能模块设计" class="headerlink" title="自定义功能模块设计"></a>自定义功能模块设计</h2><p>项目搭建架构图在线地址<a href="http://www.processon.com/view/5850b60de4b05021859c4232">点击查看架构图</a>。</p>
</summary>
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<category term="架构图" scheme="http://bee.gs/tags/%E6%9E%B6%E6%9E%84%E5%9B%BE/"/>
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<category term="sql" scheme="http://bee.gs/tags/sql/"/>
</entry>
<entry>
<title>Java-springmvc-项目搭建架构图</title>
<link href="http://bee.gs/2016/11/25/tech/java-springmvc%E9%A1%B9%E7%9B%AE%E6%90%AD%E5%BB%BA%E6%9E%B6%E6%9E%84%E5%9B%BE%E8%AE%BE%E8%AE%A1/"/>
<id>http://bee.gs/2016/11/25/tech/java-springmvc项目搭建架构图设计/</id>
<published>2016-11-24T16:00:00.000Z</published>
<updated>2017-05-20T01:42:41.977Z</updated>
<content type="html"><![CDATA[<h2 id="Java-springmvc-项目搭建架构图"><a href="#Java-springmvc-项目搭建架构图" class="headerlink" title="Java-springmvc-项目搭建架构图"></a>Java-springmvc-项目搭建架构图</h2><p>项目搭建架构图在线地址<a href="http://www.processon.com/view/582f2488e4b0645c0ec38987" target="_blank" rel="external">点击查看架构图</a></p>
]]></content>
<summary type="html">
<h2 id="Java-springmvc-项目搭建架构图"><a href="#Java-springmvc-项目搭建架构图" class="headerlink" title="Java-springmvc-项目搭建架构图"></a>Java-springmvc-项目搭建架
</summary>
<category term="Java" scheme="http://bee.gs/tags/Java/"/>
<category term="springmvd" scheme="http://bee.gs/tags/springmvd/"/>
<category term="架构图" scheme="http://bee.gs/tags/%E6%9E%B6%E6%9E%84%E5%9B%BE/"/>
<category term="项目搭建" scheme="http://bee.gs/tags/%E9%A1%B9%E7%9B%AE%E6%90%AD%E5%BB%BA/"/>
</entry>
<entry>
<title>java-springmvc+ehcache缓存实现</title>
<link href="http://bee.gs/2016/11/24/tech/java-springmvc+ehcache%E7%BC%93%E5%AD%98%E5%AE%9E%E7%8E%B0/"/>
<id>http://bee.gs/2016/11/24/tech/java-springmvc+ehcache缓存实现/</id>
<published>2016-11-23T16:00:00.000Z</published>
<updated>2016-12-27T14:58:17.249Z</updated>
<content type="html"><![CDATA[<h2 id="ehcache介绍"><a href="#ehcache介绍" class="headerlink" title="ehcache介绍"></a>ehcache介绍</h2><p><a href="http://www.ehcache.org" target="_blank" rel="external">Ehcache</a>是一个纯Java的进程内缓存框架，具有快速、精干等特点，是Hibernate中默认的CacheProvider(hibernate-ehcache )。当然也可以和mybatis(mybatis-ehcache)结合,它具有内存和磁盘存储,ehcache直接在jvm虚拟机中缓存，速度快，效率高；但是缓存共享麻烦，集群分布式应用不方便,如果大规模集群还是考虑用memcached或redis。如果是单个应用或者对缓存访问要求很高的应用，用ehcache。</p>
<hr>
<h4 id="ehcache结构设计图"><a href="#ehcache结构设计图" class="headerlink" title="ehcache结构设计图"></a>ehcache结构设计图</h4><p><img src="http://img.blog.csdn.net/20161124234325494" alt="这里写图片描述"></p>
<a id="more"></a>
<p>CacheManager:缓存管理器，一般单例模式，当然也可以多个实例，里面主要存放各个缓存区域Cache<br>Cache:所有cache都实现了Ehcache接口，类似一个HashMap,里面存放着各种键值对element，每个cache都可以设置存活时间，访问间歇时间等。<br>element:单条缓存数据的组成单位,由key和value组成</p>
<h4 id="Cache的元素的属性"><a href="#Cache的元素的属性" class="headerlink" title="Cache的元素的属性"></a>Cache的元素的属性</h4><ol>
<li>name:缓存名称。 </li>
<li>maxElementsInMemory:缓存最大个数。 </li>
<li>eternal:对象是否永久有效，一但设置了，timeout将不起作用。 </li>
<li>timeToIdleSeconds:设置对象在失效前的允许闲置时间（单位：秒）。仅当eternal=false对象不是永久有效时使用，可选属性，默认值是0，也就是可闲置时间无穷大。 </li>
<li>timeToLiveSeconds:设置对象在失效前允许存活时间（单位：秒）。最大时间介于创建时间和失效时间之间。仅当eternal=false对象不是永久有效时使用，默认是0.，也就是对象存活时间无穷大。 </li>
<li>overflowToDisk:当内存中对象数量达到maxElementsInMemory时，Ehcache将会对象写到磁盘中</li>
<li>diskSpoolBufferSizeMB:这个参数设置DiskStore（磁盘缓存）的缓存区大小。默认是30MB。每个Cache都应该有自己的一个缓冲区。 </li>
<li>maxElementsOnDisk:硬盘最大缓存个数。 </li>
<li>diskPersistent:是否缓存虚拟机重启期数据 Whether the disk store persists between restarts of the Virtual Machine. The default value is false. </li>
<li>diskExpiryThreadIntervalSeconds:磁盘失效线程运行时间间隔，默认是120秒。 </li>
<li>memoryStoreEvictionPolicy:当达到maxElementsInMemory限制时，Ehcache将会根据指定的策略去清理内存。默认策略是LRU（最近最少使用）。你可以设置为FIFO（先进先出）或是LFU（较少使用）。 </li>
<li>clearOnFlush:内存数量最大时是否清除。 </li>
</ol>
<h4 id="spring结合ehcache"><a href="#spring结合ehcache" class="headerlink" title="spring结合ehcache"></a>spring结合ehcache</h4><p>1、配置所需的相关jar包<br><figure class="highlight html"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div></pre></td><td class="code"><pre><div class="line"><span class="comment"><!--缓存start--></span></div><div class="line"><span class="comment"><!--ehcache缓存核心包--></span></div><div class="line"> <span class="tag"><<span class="name">dependency</span>></span></div><div class="line"> <span class="tag"><<span class="name">groupId</span>></span>net.sf.ehcache<span class="tag"></<span class="name">groupId</span>></span></div><div class="line"> <span class="tag"><<span class="name">artifactId</span>></span>ehcache-core<span class="tag"></<span class="name">artifactId</span>></span></div><div class="line"> <span class="tag"><<span class="name">version</span>></span>2.6.9<span class="tag"></<span class="name">version</span>></span></div><div class="line"> <span class="tag"></<span class="name">dependency</span>></span></div><div class="line"> <span class="comment"><!--做ehcache监控用的，mvn仓库里没有需要下载ehcache</span></div><div class="line">的监控插件ehcache-monitor-kit-1.0.3，从里面提供的lib复制出来，后面会有相关介绍--></div><div class="line"> <span class="tag"><<span class="name">dependency</span>></span></div><div class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.terracotta<span class="tag"></<span class="name">groupId</span>></span></div><div class="line"> <span class="tag"><<span class="name">artifactId</span>></span>ehcache-probe<span class="tag"></<span class="name">artifactId</span>></span></div><div class="line"> <span class="tag"><<span class="name">version</span>></span>1.0.3<span class="tag"></<span class="name">version</span>></span></div><div class="line"> <span class="tag"></<span class="name">dependency</span>></span></div><div class="line"> <span class="comment"><!--spring注解对ehcache的操作--></span></div><div class="line"> <span class="tag"><<span class="name">dependency</span>></span></div><div class="line"> <span class="tag"><<span class="name">groupId</span>></span>com.googlecode.ehcache-spring-annotations<span class="tag"></<span class="name">groupId</span>></span></div><div class="line"> <span class="tag"><<span class="name">artifactId</span>></span>ehcache-spring-annotations<span class="tag"></<span class="name">artifactId</span>></span></div><div class="line"> <span class="tag"><<span class="name">version</span>></span>1.2.0<span class="tag"></<span class="name">version</span>></span></div><div class="line"> <span class="tag"></<span class="name">dependency</span>></span></div><div class="line"> <span class="comment"><!--end--></span></div></pre></td></tr></table></figure></p>
<p>2、配置ehcache和spring结合时的相关配置文件,ehcache.xsd<a href="http://ehcache.org/ehcache.xsd" target="_blank" rel="external">下载地址</a></p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div></pre></td><td class="code"><pre><div class="line"><?xml version="1.0" encoding="UTF-8"?></div><div class="line"><span class="tag"><<span class="name">ehcache</span> <span class="attr">xmlns:xsi</span>=<span class="string">"http://www.w3.org/2001/XMLSchema-instance"</span></span></div><div class="line"> <span class="attr">xsi:noNamespaceSchemaLocation</span>=<span class="string">"ehcache.xsd"</span></div><div class="line"> <span class="attr">updateCheck</span>=<span class="string">"true"</span> <span class="attr">monitoring</span>=<span class="string">"autodetect"</span></div><div class="line"> <span class="attr">dynamicConfig</span>=<span class="string">"true"</span>></div><div class="line"> <span class="comment"><!-- 默认缓存配置. 自动失效：最后一次访问时间间隔300秒失效，若没有访问过自创建时间600秒失效。--></span></div><div class="line"> <span class="tag"><<span class="name">defaultCache</span> <span class="attr">maxEntriesLocalHeap</span>=<span class="string">"1000"</span></span></div><div class="line"> <span class="attr">eternal</span>=<span class="string">"false"</span></div><div class="line"> <span class="attr">timeToIdleSeconds</span>=<span class="string">"300"</span></div><div class="line"> <span class="attr">timeToLiveSeconds</span>=<span class="string">"600"</span></div><div class="line"> <span class="attr">overflowToDisk</span>=<span class="string">"true"</span></div><div class="line"> <span class="attr">statistics</span>=<span class="string">"true"</span>/></div><div class="line"></div><div class="line"> <span class="comment"><!-- 系统缓存 --></span></div><div class="line"> <span class="tag"><<span class="name">cache</span> <span class="attr">name</span>=<span class="string">"sysCache"</span> <span class="attr">maxEntriesLocalHeap</span>=<span class="string">"1000"</span></span></div><div class="line"> <span class="attr">eternal</span>=<span class="string">"true"</span></div><div class="line"> <span class="attr">overflowToDisk</span>=<span class="string">"true"</span></div><div class="line"> <span class="attr">statistics</span>=<span class="string">"true"</span>/></div><div class="line"></div><div class="line"> <span class="comment"><!-- 用户缓存 --></span></div><div class="line"> <span class="tag"><<span class="name">cache</span> <span class="attr">name</span>=<span class="string">"userCache"</span></span></div><div class="line"> <span class="attr">maxEntriesLocalHeap</span>=<span class="string">"1000"</span></div><div class="line"> <span class="attr">eternal</span>=<span class="string">"true"</span></div><div class="line"> <span class="attr">overflowToDisk</span>=<span class="string">"true"</span></div><div class="line"> <span class="attr">statistics</span>=<span class="string">"true"</span>/></div><div class="line"><span class="comment"><!--配置ehcache缓存监控的相关地址，端口--></span></div><div class="line"> <span class="tag"><<span class="name">cacheManagerPeerListenerFactory</span></span></div><div class="line"> <span class="attr">class</span>=<span class="string">"org.terracotta.ehcachedx.monitor.probe.ProbePeerListenerFactory"</span></div><div class="line"> <span class="attr">properties</span>=<span class="string">"monitorAddress=localhost, monitorPort=9889,</span></div><div class="line"> memoryMeasurement=true" /></div><div class="line"></div><div class="line"><span class="tag"></<span class="name">ehcache</span>></span></div></pre></td></tr></table></figure>
<p>springmvc对ehcache的初始化配置</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div></pre></td><td class="code"><pre><div class="line"><?xml version="1.0" encoding="UTF-8"?></div><div class="line"><span class="tag"><<span class="name">beans</span> <span class="attr">xmlns</span>=<span class="string">"http://www.springframework.org/schema/beans"</span></span></div><div class="line"> <span class="attr">xmlns:xsi</span>=<span class="string">"http://www.w3.org/2001/XMLSchema-instance"</span></div><div class="line"> <span class="attr">xmlns:cache</span>=<span class="string">"http://www.springframework.org/schema/cache"</span></div><div class="line"> <span class="attr">xsi:schemaLocation</span>=<span class="string">"http://www.springframework.org/schema/beans</span></div><div class="line"> http://www.springframework.org/schema/beans/spring-beans-3.0.xsd</div><div class="line"> http://www.springframework.org/schema/cache</div><div class="line"> http://www.springframework.org/schema/cache/spring-cache-3.2.xsd"></div><div class="line"><span class="comment"><!-- 启用缓存注解功能--></span></div><div class="line"> <span class="tag"><<span class="name">cache:annotation-driven</span> <span class="attr">cache-manager</span>=<span class="string">"ehcacheManager"</span>/></span></div><div class="line"> </div><div class="line"><span class="comment"><!-- 基于spring实现的缓存管理器--></span></div><div class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">id</span>=<span class="string">"ehcacheManager"</span> <span class="attr">class</span>=<span class="string">"org.springframework.cache.ehcache.EhCacheCacheManager"</span>></span></div><div class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"cacheManager"</span> <span class="attr">ref</span>=<span class="string">"cacheManagerFactory"</span>/></span></div><div class="line"> <span class="tag"></<span class="name">bean</span>></span></div><div class="line"> </div><div class="line"> <span class="comment"><!--加载ehcache的相关配置--></span></div><div class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">id</span>=<span class="string">"cacheManagerFactory"</span> <span class="attr">class</span>=<span class="string">"org.springframework.cache.ehcache.EhCacheManagerFactoryBean"</span>></span></div><div class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"configLocation"</span> <span class="attr">value</span>=<span class="string">"classpath:cache/ehcache.xml"</span>/></span></div><div class="line"> <span class="tag"></<span class="name">bean</span>></span></div><div class="line"> </div><div class="line"><span class="comment"><!--创建工具类ApplicationUtil,以便普通class根据bean id动态获取spring管理的bean--></span></div><div class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">id</span>=<span class="string">"applicationUtil"</span> <span class="attr">class</span>=<span class="string">"com.personal.core.utils.ApplicationUtil"</span>></span><span class="tag"></<span class="name">bean</span>></span></div><div class="line"></div><div class="line"></div><div class="line"><span class="tag"></<span class="name">beans</span>></span></div></pre></td></tr></table></figure>
<p>3、实现动态获取bean的工具类ApplicationUtil</p>
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<p>5、实现动态创建cache缓存块的工具类EHCacheUtils</p>
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* 注释</div><div class="line"> *</div><div class="line"> * <span class="doctag">@author</span>: coding99</div><div class="line"> * <span class="doctag">@Date</span>: 16-11-24</div><div class="line"> * <span class="doctag">@Time</span>: 下午8:03</div><div class="line"> */</div><div class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">EHCacheUtils</span> </span>{</div><div class="line"></div><div class="line"> <span class="keyword">private</span> <span class="keyword">static</span> CacheManager cacheManager = <span class="keyword">null</span>;</div><div class="line"></div><div class="line"> <span class="keyword">static</span> {</div><div class="line"> EHCacheUtils.initCacheManager();</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 初始化缓存管理容器</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> CacheManager <span class="title">initCacheManager</span><span class="params">()</span> </span>{</div><div class="line"></div><div class="line"> <span class="keyword">try</span>{</div><div class="line"> <span class="keyword">if</span>(cacheManager == <span class="keyword">null</span>) {</div><div class="line"> EhCacheCacheManager ehCacheCacheManager = (EhCacheCacheManager)ApplicationUtil.getBean(<span class="string">"ehcacheManager"</span>);</div><div class="line"> cacheManager = ehCacheCacheManager.getCacheManager();</div><div class="line"> }</div><div class="line"> }<span class="keyword">catch</span> (Exception e) {</div><div class="line"> e.printStackTrace();</div><div class="line"> }</div><div class="line"> <span class="keyword">return</span> cacheManager;</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 初始化内存块</div><div class="line"> * <span class="doctag">@param</span> cacheName</div><div class="line"> * <span class="doctag">@param</span> maxElementsInMemory</div><div class="line"> * <span class="doctag">@param</span> overflowToDisk</div><div class="line"> * <span class="doctag">@param</span> eternal</div><div class="line"> * <span class="doctag">@param</span> timeToIdleSeconds</div><div class="line"> * <span class="doctag">@param</span> timeToLiveSeconds</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> Cache <span class="title">initCache</span><span class="params">(String cacheName,<span class="keyword">int</span> maxElementsInMemory,<span class="keyword">boolean</span> overflowToDisk,<span class="keyword">boolean</span> eternal,<span class="keyword">long</span> timeToLiveSeconds,<span class="keyword">long</span> timeToIdleSeconds)</span> </span>{</div><div class="line"></div><div class="line"> Cache cache = cacheManager.getCache(cacheName);</div><div class="line"></div><div class="line"> <span class="keyword">try</span> {</div><div class="line"></div><div class="line"> <span class="keyword">if</span>(<span class="keyword">null</span> == cache) {</div><div class="line"> cache = <span class="keyword">new</span> Cache(cacheName,maxElementsInMemory,overflowToDisk,eternal,timeToLiveSeconds,timeToIdleSeconds);</div><div class="line"> cacheManager.addCache(cache);</div><div class="line"> }</div><div class="line"></div><div class="line"> } <span class="keyword">catch</span> (Exception e) {</div><div class="line"> e.printStackTrace();</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="keyword">return</span> cache;</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 初始化内存块</div><div class="line"> * <span class="doctag">@param</span> cacheName</div><div class="line"> * <span class="doctag">@param</span> timeToIdleSeconds</div><div class="line"> * <span class="doctag">@param</span> timeToLiveSeconds</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> Cache <span class="title">initCache</span><span class="params">(String cacheName,<span class="keyword">long</span> timeToLiveSeconds,<span class="keyword">long</span> timeToIdleSeconds)</span> </span>{</div><div class="line"></div><div class="line"> <span class="keyword">return</span> initCache(cacheName, EHCacheConfig.MAX_ELEMENTS_IN_MEMORY, EHCacheConfig.OVER_FLOW_TO_DISK,</div><div class="line"> EHCacheConfig.ETERNAL,timeToLiveSeconds,timeToIdleSeconds);</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 移除缓存</div><div class="line"> * <span class="doctag">@param</span> cacheName</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">removeCache</span><span class="params">(String cacheName)</span> </span>{</div><div class="line"> checkCacheManager();</div><div class="line"> Cache cache = cacheManager.getCache(cacheName);</div><div class="line"> <span class="keyword">if</span>(<span class="keyword">null</span> != cache) {</div><div class="line"> cacheManager.removeCache(cacheName);</div><div class="line"> }</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> *</div><div class="line"> * 获取所有的cache名称</div><div class="line"> *</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> */</div><div class="line"></div><div class="line"> <span class="keyword">public</span> <span class="keyword">static</span> String[] getAllCaches() {</div><div class="line"> checkCacheManager();</div><div class="line"> <span class="keyword">return</span> cacheManager.getCacheNames();</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 移除所有cache</div><div class="line"> */</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">removeAllCache</span><span class="params">()</span> </span>{</div><div class="line"> checkCacheManager();</div><div class="line"> cacheManager.removalAll();</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 初始化缓存</div><div class="line"> *</div><div class="line"> * <span class="doctag">@param</span> cacheName</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> Cache <span class="title">initCache</span><span class="params">(String cacheName)</span> </span>{</div><div class="line"></div><div class="line"> checkCacheManager();</div><div class="line"> <span class="keyword">if</span>(<span class="keyword">null</span> == cacheManager.getCache(cacheName)) {</div><div class="line"> cacheManager.addCache(cacheName);</div><div class="line"> }</div><div class="line"> <span class="keyword">return</span> cacheManager.getCache(cacheName);</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 添加缓存</div><div class="line"> * <span class="doctag">@param</span> cache 缓存块</div><div class="line"> * <span class="doctag">@param</span> key 关键字</div><div class="line"> * <span class="doctag">@param</span> value 值</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">put</span><span class="params">(Cache cache,Object key, Object value)</span> </span>{</div><div class="line"> checkCache(cache);</div><div class="line"> Element element = <span class="keyword">new</span> Element(key,value);</div><div class="line"> cache.put(element);</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 获取值</div><div class="line"> * <span class="doctag">@param</span> cache 缓存块</div><div class="line"> * <span class="doctag">@param</span> key</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> Object <span class="title">get</span><span class="params">(Cache cache,Object key)</span> </span>{</div><div class="line"> checkCache(cache);</div><div class="line"> Element element = cache.get(key);</div><div class="line"> <span class="keyword">if</span>(<span class="keyword">null</span> == element) {</div><div class="line"> <span class="keyword">return</span> <span class="keyword">null</span>;</div><div class="line"> }</div><div class="line"> <span class="keyword">return</span> element.getObjectValue();</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 移除key</div><div class="line"> * <span class="doctag">@param</span> cache 缓存块</div><div class="line"> * <span class="doctag">@param</span> key</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">remove</span><span class="params">(Cache cache,String key)</span> </span>{</div><div class="line"> checkCache(cache);</div><div class="line"> cache.remove(key);</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 移除所有元素</div><div class="line"> * <span class="doctag">@param</span> cache 缓存块</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">removeAllKey</span><span class="params">(Cache cache)</span> </span>{</div><div class="line"> checkCache(cache);</div><div class="line"> cache.removeAll();</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 获取 所有的key</div><div class="line"> * <span class="doctag">@param</span> cache 缓存块</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> List <span class="title">getKeys</span><span class="params">(Cache cache)</span> </span>{</div><div class="line"> checkCache(cache);</div><div class="line"> <span class="keyword">return</span> cache.getKeys();</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 检测内存管理器是否初始化</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">checkCacheManager</span><span class="params">()</span> </span>{</div><div class="line"> <span class="keyword">if</span>(<span class="keyword">null</span> == cacheManager) {</div><div class="line"> <span class="keyword">throw</span> <span class="keyword">new</span> IllegalArgumentException(<span class="string">"调用前请先初始化CacheManager值：EHCacheUtil.initCacheManager"</span>);</div><div class="line"> }</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 检查内存块是否存在</div><div class="line"> * <span class="doctag">@param</span> cache</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">checkCache</span><span class="params">(Cache cache)</span> </span>{</div><div class="line"> <span class="keyword">if</span>(<span class="keyword">null</span> == cache) {</div><div class="line"> <span class="keyword">throw</span> <span class="keyword">new</span> IllegalArgumentException(<span class="string">"调用前请先初始化Cache值：EHCacheUtil.initCache(参数)"</span>);</div><div class="line"> }</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> *</div><div class="line"> * <span class="doctag">@param</span> args</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">main</span><span class="params">(String[] args)</span> </span>{</div><div class="line"></div><div class="line"> Cache cache1 = EHCacheUtils.initCache(<span class="string">"cache1"</span>, <span class="number">60</span>, <span class="number">30</span>);</div><div class="line"> EHCacheUtils.put(cache1, <span class="string">"A"</span>, <span class="string">"a"</span>);</div><div class="line"> Cache cache2 = EHCacheUtils.initCache(<span class="string">"cache2"</span>, <span class="number">50</span>, <span class="number">20</span>);</div><div class="line"> EHCacheUtils.put(cache2, <span class="string">"A"</span>, <span class="string">"b"</span>);</div><div class="line"></div><div class="line"> System.out.println(EHCacheUtils.cacheManager.getCache(<span class="string">"cache1"</span>));</div><div class="line"> System.out.println(EHCacheUtils.cacheManager.getCache(<span class="string">"cache2"</span>));</div><div class="line"> System.out.println(EHCacheUtils.cacheManager.getCache(<span class="string">"sysCache"</span>));</div><div class="line"> System.out.println(EHCacheUtils.cacheManager.getCache(<span class="string">"userCache"</span>));</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line">}</div></pre></td></tr></table></figure>
<figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div></pre></td><td class="code"><pre><div class="line"><span class="keyword">package</span> com.personal.core.utils;</div><div class="line"></div><div class="line"><span class="comment">/**</span></div><div class="line"> * 注释</div><div class="line"> *</div><div class="line"> * <span class="doctag">@author</span>: coding99</div><div class="line"> * <span class="doctag">@Date</span>: 16-11-24</div><div class="line"> * <span class="doctag">@Time</span>: 下午8:03</div><div class="line"> */</div><div class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">EHCacheConfig</span> </span>{</div><div class="line"></div><div class="line"> <span class="comment">//元素最大数量</span></div><div class="line"> <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> MAX_ELEMENTS_IN_MEMORY = <span class="number">1000</span>;</div><div class="line"> <span class="comment">//是否把溢出数据持久化到硬盘</span></div><div class="line"> <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">boolean</span> OVER_FLOW_TO_DISK = <span class="keyword">true</span>;</div><div class="line"> <span class="comment">//是否会死亡</span></div><div class="line"> <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">boolean</span> ETERNAL = <span class="keyword">false</span>;</div><div class="line"> <span class="comment">//缓存间歇时间</span></div><div class="line"> <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> TIME_TO_IDLE_SECONDS = <span class="number">300</span>;</div><div class="line"> <span class="comment">//缓存存活时间</span></div><div class="line"> <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> TIME_TO_LIVE_SECONDS = <span class="number">600</span>;</div><div class="line"> <span class="comment">//是否需要持久化到硬盘</span></div><div class="line"> <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">boolean</span> DISK_PERSISTENT = <span class="keyword">false</span>;</div><div class="line"> <span class="comment">//内存存取策略</span></div><div class="line"> <span class="keyword">public</span> <span class="keyword">static</span> String MEMORY_STORE_EVICTION_POLICY = <span class="string">"LRU"</span>;</div><div class="line"></div><div class="line">}</div></pre></td></tr></table></figure>
<p>6、基于spring注解的的ehcache的用法<br> 使用方法参数时我们可以直接使用“#参数名”或者“#p参数index”。下面是几个使用参数作为key的示例</p>
<ul>
<li>@Cacheable可作用与类或者方法上，主要用于把返回的数据存入相应的缓存块里</li>
<li>@CacheEvict主要用于在方法执行前或者执行后清除指定缓存块里的相应元素</li>
<li>相关属性请百度相应的用法</li>
</ul>
<figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div><div class="line">33</div><div class="line">34</div><div class="line">35</div><div class="line">36</div><div class="line">37</div><div class="line">38</div><div class="line">39</div><div class="line">40</div><div class="line">41</div><div class="line">42</div><div class="line">43</div><div class="line">44</div><div class="line">45</div><div class="line">46</div><div class="line">47</div><div class="line">48</div><div class="line">49</div><div class="line">50</div><div class="line">51</div></pre></td><td class="code"><pre><div class="line"><span class="meta">@Cacheable</span>(value=<span class="string">"userCache"</span>, key=<span class="string">"#id"</span>)</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> User <span class="title">find</span><span class="params">(Integer id)</span> </span>{</div><div class="line"></div><div class="line"> returnnull;</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"> </div><div class="line"> <span class="meta">@Cacheable</span>(value=<span class="string">"userCache"</span>, key=<span class="string">"#p0"</span>)</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> User <span class="title">find</span><span class="params">(Integer id)</span> </span>{</div><div class="line"></div><div class="line"> returnnull;</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"> </div><div class="line"> <span class="meta">@Cacheable</span>(value=<span class="string">"userCache"</span>, key=<span class="string">"#user.id"</span>)</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> User <span class="title">find</span><span class="params">(User user)</span> </span>{</div><div class="line"></div><div class="line"> returnnull;</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"> </div><div class="line"></div><div class="line"> <span class="meta">@Cacheable</span>(value=<span class="string">"userCache"</span>, key=<span class="string">"#p0.id"</span>)</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> User <span class="title">find</span><span class="params">(User user)</span> </span>{</div><div class="line"></div><div class="line"> <span class="keyword">return</span> <span class="keyword">null</span>;</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="meta">@Cacheable</span>({<span class="string">"cache1"</span>, <span class="string">"cache2"</span>})<span class="comment">//Cache是发生在cache1和cache2上的</span></div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> User <span class="title">find</span><span class="params">(Integer id)</span> </span>{</div><div class="line"></div><div class="line"> <span class="keyword">return</span> <span class="keyword">null</span>;</div><div class="line"></div><div class="line"> } </div><div class="line"> </div><div class="line"><span class="meta">@CacheEvict</span>(value=<span class="string">"userCache"</span>, beforeInvocation=<span class="keyword">true</span>)</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">delete</span><span class="params">(Integer id)</span> </span>{</div><div class="line"></div><div class="line"> System.out.println(<span class="string">"delete user by id: "</span> + id);</div><div class="line"></div><div class="line"> }</div></pre></td></tr></table></figure>
<h4 id="ehcache监控"><a href="#ehcache监控" class="headerlink" title="ehcache监控"></a>ehcache监控</h4><p>监控 ehcache缓存:</p>
<p>1.<a href="http://terracotta.org/downloads/open-source/destination?name=ehcache-monitor-kit-1.0.3-distribution.tar.gz&bucket=tcdistributions&file=ehcache-monitor-kit-1.0.3-distribution.tar.gz" target="_blank" rel="external">下载地址</a></p>
<p>2.解压缩到目录下，复制ehcache-monitor-kit-1.0.0\lib\ehcache-probe-1.0.0.jar到项目里面，如上面的通过pom.xml文件引入等方式</p>
<p>3.将以下配置copy的ehcache.xml文件的ehcache标签中</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div></pre></td><td class="code"><pre><div class="line"><span class="tag"><<span class="name">cacheManagerPeerListenerFactory</span></span></div><div class="line"> <span class="attr">class</span>=<span class="string">"org.terracotta.ehcachedx.monitor.probe.ProbePeerListenerFactory"</span></div><div class="line"> <span class="attr">properties</span>=<span class="string">"monitorAddress=localhost, monitorPort=9889"</span> /></div></pre></td></tr></table></figure>
<p>如果有提示报错，请对properties里面的元素做换行或者空格处理，具体也不知道为啥</p>
<p>4.在\ehcache-monitor-kit-1.0.0\etc\ehcache-monitor.conf中可以配置监控的ip和端口号。<br>如把相应的#去掉</p>
<p>5.删除 startup.bat中的行 -j %PRGDIR%\etc\jetty.xml<br>启动被监控的web application和ehcache-monitor-kit-1.0.0\bin目录下的startup.bat（在windows环境下）</p>
<p>6.在浏览器中输入 <a href="http://localhost:9889/monitor/即可开始监控。" target="_blank" rel="external">http://localhost:9889/monitor/即可开始监控。</a><br><img src="http://img.blog.csdn.net/20161128202649310" alt="这里写图片描述"></p>
]]></content>
<summary type="html">
<h2 id="ehcache介绍"><a href="#ehcache介绍" class="headerlink" title="ehcache介绍"></a>ehcache介绍</h2><p><a href="http://www.ehcache.org">Ehcache</a>是一个纯Java的进程内缓存框架，具有快速、精干等特点，是Hibernate中默认的CacheProvider(hibernate-ehcache )。当然也可以和mybatis(mybatis-ehcache)结合,它具有内存和磁盘存储,ehcache直接在jvm虚拟机中缓存，速度快，效率高；但是缓存共享麻烦，集群分布式应用不方便,如果大规模集群还是考虑用memcached或redis。如果是单个应用或者对缓存访问要求很高的应用，用ehcache。</p>
<hr>
<h4 id="ehcache结构设计图"><a href="#ehcache结构设计图" class="headerlink" title="ehcache结构设计图"></a>ehcache结构设计图</h4><p><img src="http://img.blog.csdn.net/20161124234325494" alt="这里写图片描述"></p>
</summary>
<category term="Java" scheme="http://bee.gs/tags/Java/"/>
<category term="springmvc" scheme="http://bee.gs/tags/springmvc/"/>
<category term="ehcache" scheme="http://bee.gs/tags/ehcache/"/>
<category term="缓存" scheme="http://bee.gs/tags/%E7%BC%93%E5%AD%98/"/>
</entry>
<entry>
<title>Ubuntu-Nginx+Tomcat+Redis集群配置</title>
<link href="http://bee.gs/2016/10/24/tech/ubuntu-Nginx+Tomcat+redis%E9%9B%86%E7%BE%A4%E9%85%8D%E7%BD%AE/"/>
<id>http://bee.gs/2016/10/24/tech/ubuntu-Nginx+Tomcat+redis集群配置/</id>
<published>2016-10-24T14:54:00.000Z</published>
<updated>2016-12-27T14:58:17.249Z</updated>
<content type="html"><![CDATA[<h2 id="Nginx-安装及配置"><a href="#Nginx-安装及配置" class="headerlink" title="Nginx 安装及配置"></a>Nginx 安装及配置</h2><blockquote>
<p>简介：<br>中国大陆使用nginx网站用户有：百度、京东、新浪、网易、腾讯、淘宝等。Ngnix是一个负载均衡服务器，其特点是占有内存少，并发能力强<br>nginx一般用来做静态服务器，本身不具备动态解析功能，需要结合其它插件或软件使用，如tomcat,php等，在性能方面：如果，不做集群调优等情况下，tomcat（tomcat是动态服务器，需要依赖于jdk）一般支持并发100个左右，而nginx在静态方面可以达到几万并发。</p>
</blockquote>
<hr>
<a id="more"></a>
<blockquote>
<p>nginx(下载：<a href="http://nginx.org/en/download.html)nginx-1.9.3.tar.gz" target="_blank" rel="external">http://nginx.org/en/download.html)nginx-1.9.3.tar.gz</a></p>
<p>模块依赖性<br>gzip模块需要 zlib 库( 下载: <a href="http://www.zlib.net/)zlib-1.2.8.tar.gz" target="_blank" rel="external">http://www.zlib.net/)zlib-1.2.8.tar.gz</a> ：<br>gzip可以加快我们网站打开的速度，原理是通过服务器压缩，客户端浏览器快速解压，大大的节省了网站的流量，提高了网页打开的速度，<br>但与此同时也会增加cpu的开销。<br>rewrite模块需要 pcre 库 ( 下载: <a href="http://www.pcre.org/" target="_blank" rel="external">http://www.pcre.org/</a>) pcre-8.38.tar.gz ：<br>rewrite主要时实现url的重写,通过pcre的perl兼容正则表达式进行匹配，通过rewrite规则，可实现规范的URL，或者动态的URL地址需要伪装成静态的HTML，便于搜索引擎抓到，旧URL可以通过rewrite跳转到新URL上。<br>ssl 功能需要openssl库( 下载: <a href="http://www.openssl.org/" target="_blank" rel="external">http://www.openssl.org/</a> )openssl-1.1.0.tar.gz：<br>openssl可以生成数字证书，自带功能加密功能，增加nginx的ssl安全性。</p>
</blockquote>
<p>#安装：<br><img src="http://img.blog.csdn.net/20160910100926952?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="img1"><br>sudo su切换到root用户<br>1、下载完包后，我们把它们移动到一个nginx的文件夹里(mv openssl-1.1.0.tar.gz nginx-1.9.3.tar.gz pcre-8.38.tar.gz zlib-1.2.8.tar.gz /opt/nginx)，再解压（tar -zxvf openssl-1.1.0.tar.gz nginx-1.9.3.tar.gz pcre-8.38.tar.gz zlib-1.2.8.tar.gz）<br>2、安装pcre（cd pcre-8.38 ./configure make&make install）<br>3、安装zlib（cd zlib-1.2.8 ./configure make&make install）<br>4、安装openssl（cd openssl-1.1.0 ./config make&make install）<br>5、安装nginx（cd nginx-1.9.3 ./configure make&make install） 执行./configure如果提示找不到上面安装的相关模块时，则可以使用一下命令<br>用–with-openssl=<openssl_dir>、–with-pcre=<pcre_dir>、–with-zlib=<zlib_dir>指定依赖的模块目录。如./configure –width-openssl=/opt/nginx<br>/nginx-1.9.3 在make&make install, 如果编译通过，则默认安装即可。</zlib_dir></pcre_dir></openssl_dir></p>
<p>使用：(注意，nignx安装后的使用目录是/usr/local/nginx/)下面的说明用开始安装的目录也行。<br><img src="http://img.blog.csdn.net/20160910103040861?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="img2"></p>
<p>我们切换到这个目录下，通过./nginx启动nginx服务器，浏览器输入<a href="http://localhost,显示以下信息，则安装成功。" target="_blank" rel="external">http://localhost,显示以下信息，则安装成功。</a><br><img src="http://img.blog.csdn.net/20160910103622136?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="img3"><br>如果要要重启nginx，使用./nginx -s reload即可<br>关闭方式有以下几种</p>
<p>1、直接输入 ./nginx -s stop</p>
<p>2、 查询nginx主进程号</p>
<p> ps -ef | grep nginx</p>
<p> 从容停止 kill -QUIT 主进程号</p>
<p> 快速停止 kill -TERM 主进程号</p>
<p> 强制停止 kill -9 nginx</p>
<p>若nginx.conf配置了pid文件路径，如果没有，则在logs目录下</p>
<p>kill -信号类型 /usr/local/nginx/logs/nginx.pid</p>
<p>判断配置文件是否正确可用./nginx -t</p>
<p>配置文件介绍：<br><img src="http://img.blog.csdn.net/20160910104859002?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="img4"></p>
<p>除了nginx.conf，其余配置文件，一般只需要使用默认提供即可。</p>
<p>nginx.conf</p>
<p>在conf文件下的nginx.conf时主要配置文件，其内容如上图：<br>worker_process表示工作进程的数量，一般设置为cpu的核数（上图没截取到）<br>worker_connections表示每个工作进程的最大连接数（上图没截取到）<br> server{}块定义了虚拟主机<br> listener 监听端口，默认为80<br> server_name监听的域名<br> location{}是用来匹配URI进行配置，URI即语法中的’/uri/‘。location{}配置任何查询，因为<br>素有请求都以/开头。<br>root 指定对应uri的资源查找路径，这里html为相对路径,完整路径为/opt/nginx/nginx-1.9.3/html<br>index指定首页index文件的名称，可用配置多个，以空格分开，如有多个，按配置顺序查找。<br>error_page服务器发生错误请求时候，它会自动根据错误状态码跳转到相应的50页面。<br>mime.types 定义的文件扩展名与文件类型映射关系<br>fastcgi_params ginx配置Fastcgi解析时会调用fastcgi_params配置文件来传递服务器变量，这样CGI中可以获取到这些变量的值。默认传递以下变量：<br>uwsgi_params 与fastcgi_params一样，传递哪些服务器变量，只有前缀不一样，以uwsgi_param开始而非fastcgi_param。<br>scgi_params 与fastcgi_params一样，传递哪些服务器变量，只有前缀不一样，以uwsgi_param开始而非fastcgi_param。<br>koi-utf、koi-win、win-utf<br>这三个文件都是与编码转换映射文件，用于在输出内容到客户端时，将一种编码转换到另一种编码。<br>koi-win： charset_map koi8-r < – > windows-1251<br>koi-utf： charset_map koi8-r < – > utf-8<br>win-utf： charset_map windows-1251 < – > utf-8</p>
<p>Redis 的安装</p>
<p>wget <a href="http://download.redis.io/releases/redis-2.8.9.tar.gz" target="_blank" rel="external">http://download.redis.io/releases/redis-2.8.9.tar.gz</a> 下载软件安装包<br> tar -zxvf redis-2.8.9.tar.gz -c /opt/nginx 解压到指定的目录<br>cd /redis-2.8.9 切换到该目录下<br>sudo make & make install安装redis<br>软件安装完毕，接下来我们可以测试是否安装成功<br><img src="http://img.blog.csdn.net/20160911225943023?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="img5"></p>
<p><img src="http://img.blog.csdn.net/20160911225953788?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="img6"></p>
<p>Tomcat + Redis + Nginx集群配置<br><img src="http://img.blog.csdn.net/20160911234334878?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="img7"><br><img src="http://img.blog.csdn.net/20160911230510843?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="img8"></p>
<p>1、wget <a href="http://mirror.bit.edu.cn/apache/tomcat/tomcat-7/v7.0.70/bin/apache-tomcat-7.0.70.tar.gz" target="_blank" rel="external">http://mirror.bit.edu.cn/apache/tomcat/tomcat-7/v7.0.70/bin/apache-tomcat-7.0.70.tar.gz</a></p>
<p>2、tar -zxvf apache-tomcat-7.0.70.tar.gz , mv apache-tomcat-7.0.70 tomcat1</p>
<p>3 、tar -zxvf apache-tomcat-7.0.70.tar.gz ,mv apache-tomcat-7.0.70 tomcat2</p>
<p>4、tar -zxvf apache-tomcat-7.0.70.tar.gz, mv apache-tomcat-7.0.70 tomcat3</p>
<p> 5、修改tomcat2里的端口依次为8006 8081 8010 修改tomcat3里的端口依次为8007 8082 8011 </p>
<p>6、之后我们创建一个文件夹test(mkdir test) 再创建一个index(vim index.jsp)内容如下</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div></pre></td><td class="code"><pre><div class="line"><span class="tag"><<span class="name">%@</span> <span class="attr">page</span> <span class="attr">language</span>=<span class="string">"java"</span> %></span></div><div class="line"><span class="tag"><<span class="name">html</span>></span></div><div class="line"> <span class="tag"><<span class="name">head</span>></span><span class="tag"><<span class="name">title</span>></span>TomcatA<span class="tag"></<span class="name">title</span>></span><span class="tag"></<span class="name">head</span>></span></div><div class="line"> <span class="tag"><<span class="name">body</span>></span></div><div class="line"></div><div class="line"> <span class="tag"><<span class="name">table</span> <span class="attr">align</span>=<span class="string">"centre"</span> <span class="attr">border</span>=<span class="string">"1"</span>></span></div><div class="line"> <span class="tag"><<span class="name">tr</span>></span></div><div class="line"> <span class="tag"><<span class="name">td</span>></span>Session ID<span class="tag"></<span class="name">td</span>></span></div><div class="line"> <span class="tag"><<span class="name">td</span>></span><span class="tag"><<span class="name">%=</span> <span class="attr">session.getId</span>() %></span><span class="tag"></<span class="name">td</span>></span></div><div class="line"> <span class="tag"></<span class="name">tr</span>></span></div><div class="line"> <span class="tag"><<span class="name">tr</span>></span></div><div class="line"> <span class="tag"><<span class="name">td</span>></span>Created on<span class="tag"></<span class="name">td</span>></span></div><div class="line"> <span class="tag"><<span class="name">td</span>></span><span class="tag"><<span class="name">%=</span> <span class="attr">session.getCreationTime</span>() %></span><span class="tag"></<span class="name">td</span>></span></div><div class="line"> <span class="tag"></<span class="name">tr</span>></span></div><div class="line"> <span class="tag"></<span class="name">table</span>></span></div><div class="line"> <span class="tag"></<span class="name">body</span>></span></div><div class="line"><span class="tag"></<span class="name">html</span>></span></div><div class="line">sessionID:<span class="tag"><<span class="name">%=session.getId()%</span>></span></div><div class="line"><span class="tag"><<span class="name">br</span>></span></div><div class="line">SessionIP:<span class="tag"><<span class="name">%=request.getServerName()%</span>></span></div><div class="line"><span class="tag"><<span class="name">br</span>></span></div><div class="line">SessionPort:<span class="tag"><<span class="name">%=request.getServerPort()%</span>></span></div><div class="line"><span class="tag"><<span class="name">%</span></span></div><div class="line">//为了区分，第二个可以是<span class="attr">222</span></div><div class="line"><span class="attr">out.println</span>("<span class="attr">This</span> <span class="attr">is</span> <span class="attr">Tomcat</span> <span class="attr">Server</span> <span class="attr">1111</span>");</div><div class="line">%></div></pre></td></tr></table></figure>
<p>7、之后分别修改tomcat1 tomcat2 tomcat3的server.xml,在<host>内为其指定web项目的路径</host></p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><div class="line">1</div></pre></td><td class="code"><pre><div class="line"><span class="tag"><<span class="name">Context</span> <span class="attr">path</span>=<span class="string">""</span> <span class="attr">reloadable</span>=<span class="string">"true"</span> <span class="attr">docBase</span>=<span class="string">"/opt/nginx/test"</span>/></span></div></pre></td></tr></table></figure>
<p>8、cd /usr/local/nginx/conf切换到nignx安装后的目录下，修改nginx.conf（vim nginx.conf）配置文件</p>
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class="line">187</div><div class="line">188</div><div class="line">189</div><div class="line">190</div><div class="line">191</div><div class="line">192</div></pre></td><td class="code"><pre><div class="line"><span class="comment">#user nobody;</span></div><div class="line"> </div><div class="line"><span class="comment"># 进程数，一般这个和cpu核心数相等</span></div><div class="line"> </div><div class="line">worker_processes 2;</div><div class="line"> </div><div class="line"><span class="comment"># 错误日志配置</span></div><div class="line"> </div><div class="line"><span class="comment">#error_log logs/error.log;</span></div><div class="line"> </div><div class="line"><span class="comment">#error_log logs/error.log notice;</span></div><div class="line"> </div><div class="line"><span class="comment">#error_log logs/error.log info;</span></div><div class="line"> </div><div class="line"> <span class="comment"># pid 进程</span></div><div class="line"> </div><div class="line"><span class="comment">#pid logs/nginx.pid;</span></div><div class="line"> </div><div class="line"><span class="comment">#工作模式及连接数上限</span></div><div class="line">events {</div><div class="line"> </div><div class="line"> <span class="comment"># work 进程连接数</span></div><div class="line"> use epoll; </div><div class="line"> worker_connections 2048;</div><div class="line"></div><div class="line"> <span class="comment"># 并发总数是 worker_processes 和 worker_connections 的乘积</span></div><div class="line"> <span class="comment"># 即 max_clients = worker_processes * worker_connections</span></div><div class="line"> <span class="comment"># 在设置了反向代理的情况下，max_clients = worker_processes * worker_connections / 4 为什么</span></div><div class="line"> <span class="comment"># 为什么上面反向代理要除以4，应该说是一个经验值</span></div><div class="line"> <span class="comment"># 根据以上条件，正常情况下的Nginx Server可以应付的最大连接数为：4 * 8000 = 32000</span></div><div class="line"> <span class="comment"># worker_connections 值的设置跟物理内存大小有关</span></div><div class="line"> <span class="comment"># 因为并发受IO约束，max_clients的值须小于系统可以打开的最大文件数</span></div><div class="line"> <span class="comment"># 而系统可以打开的最大文件数和内存大小成正比，一般1GB内存的机器上可以打开的文件数大约是10万左右</span></div><div class="line"> <span class="comment"># 我们来看看360M内存的VPS可以打开的文件句柄数是多少：</span></div><div class="line"> <span class="comment"># $ cat /proc/sys/fs/file-max</span></div><div class="line"> <span class="comment"># 输出 34336</span></div><div class="line"> <span class="comment"># 32000 < 34336，即并发连接总数小于系统可以打开的文件句柄总数，这样就在操作系统可以承受的范围之内</span></div><div class="line"> <span class="comment"># 所以，worker_connections 的值需根据 worker_processes 进程数目和系统可以打开的最大文件总数进行适当地进行设置</span></div><div class="line"> <span class="comment"># 使得并发总数小于操作系统可以打开的最大文件数目</span></div><div class="line"> <span class="comment"># 其实质也就是根据主机的物理CPU和内存进行配置</span></div><div class="line"> <span class="comment"># 当然，理论上的并发总数可能会和实际有所偏差，因为主机还有其他的工作进程需要消耗系统资源。</span></div><div class="line"> <span class="comment"># ulimit -SHn 65535</span></div><div class="line"></div><div class="line">}</div><div class="line"> </div><div class="line"></div><div class="line"> </div><div class="line">http {</div><div class="line"></div><div class="line"> <span class="comment">#设定mime类型,类型由mime.type文件定义</span></div><div class="line"> include mime.types;</div><div class="line"></div><div class="line"> default_type application/octet-stream;</div><div class="line"></div><div class="line"> <span class="comment">#设定日志格式</span></div><div class="line"> <span class="comment">#log_format main '$remote_addr - $remote_user[$time_local] "$request" '</span></div><div class="line"></div><div class="line"> <span class="comment"># '$status $body_bytes_sent"$http_referer" '</span></div><div class="line"></div><div class="line"> <span class="comment"># '"$http_user_agent""$http_x_forwarded_for"';</span></div><div class="line"></div><div class="line"> <span class="comment">#access_log logs/access.log main;</span></div><div class="line"></div><div class="line"> <span class="comment"># 开启高效文件传输模式，调用sendfile 进行文件的传输，但一般为了和网速的io进行平衡，</span></div><div class="line"></div><div class="line"> <span class="comment">#sendfile 指令指定 nginx 是否调用 sendfile 函数（zero copy 方式）来输出文件，</span></div><div class="line"> <span class="comment">#对于普通应用，必须设为 on,</span></div><div class="line"> <span class="comment">#如果用来进行下载等应用磁盘IO重负载应用，可设置为 off，</span></div><div class="line"> <span class="comment">#以平衡磁盘与网络I/O处理速度，降低系统的uptime.</span></div><div class="line"></div><div class="line"> sendfile on;</div><div class="line"></div><div class="line"> <span class="comment">#tcp_nopush on;</span></div><div class="line"></div><div class="line"> <span class="comment">#连接超时时间</span></div><div class="line"> <span class="comment">#keepalive_timeout 0;</span></div><div class="line"></div><div class="line"> keepalive_timeout 65;</div><div class="line"></div><div class="line"> tcp_nodelay on;</div><div class="line"></div><div class="line"> <span class="comment"># 是否开启gzip压缩输出</span></div><div class="line"></div><div class="line"> <span class="comment">#开启zip网页压缩</span></div><div class="line"> gzip on;</div><div class="line"> gzip_min_length 1k;</div><div class="line"> gzip_buffers 4 8k;</div><div class="line"> gzip_http_version 1.1;</div><div class="line"> gzip_types text/plain application/x-javascript text/css application/xml;</div><div class="line"></div><div class="line"> <span class="comment">#设定请求缓冲</span></div><div class="line"> client_header_buffer_size 128k;</div><div class="line"> large_client_header_buffers 4 128k;</div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">#负载均衡配置，nginx 是做反向代理的，访问nginx就是在访问负载均衡配置的这个server，这个可以通过log查看</span></div><div class="line"></div><div class="line"> <span class="comment"># 查看的error log 从中可以清晰看到 负载均衡的地址：client: 127.0.0.1, server: localhost,request: "GET /index.jsp # HTTP/1.1", upstream: "http://127.0.0.1:18081/index.jsp", host: "localhost"</span></div><div class="line"></div><div class="line"> upstream localhost{</div><div class="line"></div><div class="line"> <span class="comment">#ip_hash iphash 实现负载均衡，这里使用了轮回的方式实现</span></div><div class="line"></div><div class="line"> <span class="comment"># nginx 转发的后台tomcat服务器配置，以及其权重的配置，权重越大要承载的量越大</span></div><div class="line"></div><div class="line"> <span class="comment">#ip_hash; #每个请求按访问ip的hash结果分配，这样每个访客固定访问一个后端服务器，可以解决session的问题</span></div><div class="line"> server localhost:8080 weight=1 max_fails=2 fail_timeout=30s;</div><div class="line"></div><div class="line"> server localhost:8081 weight=1 max_fails=2 fail_timeout=30s;</div><div class="line"></div><div class="line"> server localhost:8082 weight=1 max_fails=2 fail_timeout=30s;</div><div class="line"></div><div class="line"> }</div><div class="line"> </div><div class="line"> <span class="comment"># 虚拟主机的配置</span></div><div class="line"> </div><div class="line"> server {</div><div class="line"> </div><div class="line"> <span class="comment"># 就是nginx服务的端口</span></div><div class="line"> </div><div class="line"> listen 80;</div><div class="line"> </div><div class="line"> <span class="comment">#这个就是访问域名</span></div><div class="line"> </div><div class="line"> server_name localhost;</div><div class="line"> </div><div class="line"> <span class="comment"># 字符编码的设置</span></div><div class="line"> </div><div class="line"> charset utf-8;</div><div class="line"> </div><div class="line"></div><div class="line"> <span class="comment">#access_log logs/host.access.log main;</span></div><div class="line"> </div><div class="line"> <span class="comment"># 动静分离，动态的反向到负载均衡的tomcat上</span></div><div class="line"> </div><div class="line"> </div><div class="line"> location / {</div><div class="line"> <span class="comment"># nginx 的根目录，当发送静态请求时会默认到这个目录下去查找</span></div><div class="line"> root /opt/nginx/<span class="built_in">test</span>;</div><div class="line"> <span class="comment">#定义首页索引文件的名称</span></div><div class="line"> index index.html index.htm index.jsp index.do;</div><div class="line"> } </div><div class="line"></div><div class="line"> <span class="comment">#error_page 404 /404.html;</span></div><div class="line"> <span class="comment"># 定义错误提示页面 /50x.html</span></div><div class="line"></div><div class="line"></div><div class="line"> error_page 500 502 503 504 /50x.html;</div><div class="line"></div><div class="line"> location = /50x.html {</div><div class="line"> <span class="comment">#root html;</span></div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment"># 静态页面由 nginx处理</span></div><div class="line"></div><div class="line"> location ~ ^/(images|javascript|js|css|flash|media|static)/ {</div><div class="line"></div><div class="line"> <span class="comment">#过期30天，静态文件不怎么更新，过期可以设大一点，</span></div><div class="line"> <span class="comment">#如果频繁更新，则可以设置得小一点。</span></div><div class="line"></div><div class="line"> <span class="comment">#expires 30d;</span></div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">#jsp,do等页面交由tomcat处理</span></div><div class="line"> location ~ \.(jsp|<span class="keyword">do</span>)$ {</div><div class="line"></div><div class="line"> <span class="comment"># 代理路径，和负载均衡的 upstream localhost 这个localhost路径是一致的，但http是不能忘！</span></div><div class="line"></div><div class="line"> proxy_pass http://localhost;</div><div class="line"> proxy_redirect off; </div><div class="line"> proxy_set_header Host <span class="variable">$host</span>; </div><div class="line"> proxy_set_header X-Real-IP <span class="variable">$remote_addr</span>; </div><div class="line"> proxy_set_header X-Forwarded-For <span class="variable">$proxy_add_x_forwarded_for</span>; </div><div class="line"> client_max_body_size 10m; </div><div class="line"> client_body_buffer_size 128k; </div><div class="line"> proxy_buffers 32 4k; </div><div class="line"> proxy_connect_timeout 3; </div><div class="line"> proxy_send_timeout 30; </div><div class="line"> proxy_read_timeout 30; </div><div class="line"> </div><div class="line"> }</div><div class="line"></div><div class="line"> </div><div class="line"> <span class="comment">#禁止访问 .htxxx 文件</span></div><div class="line"> location ~ /.ht {</div><div class="line"> deny all;</div><div class="line"> }</div><div class="line"> </div><div class="line"> }</div><div class="line">}</div></pre></td></tr></table></figure>
<p>9、cd ../sbin/ 切换到启动命令文件夹下，执行sudo ./nginx -t测试配置文件配置是否有误如果提示成功，我们分别启动tomcat1 tomcat2 tomcat3,<br> 再执行sudo ./nginx 启动nginx,然后访问<a href="http://localhost,不断f5刷新，可以看到访问被分配到不同的tomcat，这样就起到负载均衡的作用，如果" target="_blank" rel="external">http://localhost,不断f5刷新，可以看到访问被分配到不同的tomcat，这样就起到负载均衡的作用，如果</a><br> 我们尝试把tomcat1关掉，访问就被分配到剩下的两个tomcat下，但是有一个问题，就是每次访问不到不同的tomcat，session就发生了变化，<br> 这时后我们可以采用redis来做session共享。</p>
<p>10、Tomcat 结合 Redis做session共享需要jedis-2.8.1.jar commons-pool2-2.4.2.jar tomcat-redis-session-manager-2.0.0.jar这几个包，<br>jedis-2.8.1.jar commons-pool2-2.4.2.jar 可以从<a href="http://mvnrepository.com/" target="_blank" rel="external">http://mvnrepository.com/</a> 上下载， tomcat-redis-session-manager-2.0.0.jar这个包比较<br>麻烦，需要自己用gradle编译，因为tomcat-redis-session-manager的作者把源码开放到git上，打包方式是gradle,编译方式如下:<br> 1、 如果自己系统上没有gradle，请先安装gradle, sudo apt-get install gradle,<br> 2、git clone <a href="https://github.com/jcoleman/tomcat-redis-session-manager.git" target="_blank" rel="external">https://github.com/jcoleman/tomcat-redis-session-manager.git</a><br> 3、修改build.gradle，在signing节点中添加required = false以及删掉或注释掉文件中的sonatype的repository代码即可<br> 4、执行gradle build,编译结束后生成build，在里面的libs文件夹下可以找到 tomcat-redis-session-manager-2.0.0.jar这个包</p>
<p>11、分别把jedis-2.8.1.jar commons-pool2-2.4.2.jar tomcat-redis-session-manager-2.0.0.jar复制到 tomcat1 tomct2 tomcat3的libs目录下，</p>
<p> 再一次修改tomcat1 tomcat2 tomcat3的conf里的 context.xml 文件，在里头的context节点里增加如下内容</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div></pre></td><td class="code"><pre><div class="line"></div><div class="line"><span class="tag"><<span class="name">Valve</span> <span class="attr">className</span>=<span class="string">"com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve"</span> /></span></div><div class="line"></div><div class="line"> <span class="tag"><<span class="name">Manager</span> <span class="attr">className</span>=<span class="string">"com.orangefunction.tomcat.redissessions.RedisSessionManager"</span></span></div><div class="line"></div><div class="line"> <span class="attr">host</span>=<span class="string">"localhost"</span></div><div class="line"></div><div class="line"> <span class="attr">port</span>=<span class="string">"6379"</span></div><div class="line"></div><div class="line"> <span class="attr">database</span>=<span class="string">"10"</span></div><div class="line"></div><div class="line"> <span class="attr">maxInactiveInterval</span>=<span class="string">"60"</span>/></div></pre></td></tr></table></figure>
<pre><code>11、最后，启动redis,tomcat1,tomcat2,tomcat3,nginx,访问http://localhost,不断按f5刷新，可以看到都是同样内容，除非关闭浏览器再重新启动才能看到session id的变化，说明已经实现了 tomcat集群和session共享。
</code></pre><p><img src="http://img.blog.csdn.net/20160912001114210?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="img10"></p>
]]></content>
<summary type="html">
<h2 id="Nginx-安装及配置"><a href="#Nginx-安装及配置" class="headerlink" title="Nginx 安装及配置"></a>Nginx 安装及配置</h2><blockquote>
<p>简介：<br>中国大陆使用nginx网站用户有：百度、京东、新浪、网易、腾讯、淘宝等。Ngnix是一个负载均衡服务器，其特点是占有内存少，并发能力强<br>nginx一般用来做静态服务器，本身不具备动态解析功能，需要结合其它插件或软件使用，如tomcat,php等，在性能方面：如果，不做集群调优等情况下，tomcat（tomcat是动态服务器，需要依赖于jdk）一般支持并发100个左右，而nginx在静态方面可以达到几万并发。</p>
</blockquote>
<hr>
</summary>
<category term="Ubuntu" scheme="http://bee.gs/tags/Ubuntu/"/>
<category term="Linux" scheme="http://bee.gs/tags/Linux/"/>
<category term="Nginx" scheme="http://bee.gs/tags/Nginx/"/>
<category term="Tomcat" scheme="http://bee.gs/tags/Tomcat/"/>
<category term="Redis - 安装" scheme="http://bee.gs/tags/Redis-%E5%AE%89%E8%A3%85/"/>
</entry>
<entry>
<title>Ubuntu -Jdk-Mysql安装</title>
<link href="http://bee.gs/2016/10/23/tech/ubuntu-jdk-mysql/"/>
<id>http://bee.gs/2016/10/23/tech/ubuntu-jdk-mysql/</id>
<published>2016-10-23T15:23:00.000Z</published>
<updated>2016-12-27T14:58:17.249Z</updated>
<content type="html"><![CDATA[<h2 id="ubuntu下的Jdk-Mysql安装"><a href="#ubuntu下的Jdk-Mysql安装" class="headerlink" title="ubuntu下的Jdk Mysql安装"></a>ubuntu下的Jdk Mysql安装</h2><p> 软件环境 ：</p>
<p> 操作系统：Ubuntu 14.04.2 LTS（cat /etc/issue） x86_64（uname -m）</p>
<p> JAVA版本：jdk-7u71-linux-x64.tar.gz</p>
<p> 软件下载地址：<a href="http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html" target="_blank" rel="external">http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html</a></p>
<p> 也可以在线下载（由于oracle下载需要选择确认，所以我们下载时需要设置请求头的Cookie）：<br> wget –no-check-certificate –no-cookies –header “Cookie: oraclelicense=accept-securebackup-cookie” <a href="http://download.oracle.com/otn-pub/java/jdk/7u71-b14/jdk-7u71-linux-x64.tar.gz" target="_blank" rel="external">http://download.oracle.com/otn-pub/java/jdk/7u71-b14/jdk-7u71-linux-x64.tar.gz</a></p>
<a id="more"></a>
<p> 安装软件的方法如下：<br> 1、切换到root用户 sudo su 输入密码<br> 2、mkdir /usr/local/Java 创建jdk存放的文件夹叫java<br> 3、cp jdk-7u71-Linux-x64.tar.gz /usr/local/java 复制jdk到指定文件<br> 4、tar -zxvf jdk-7u71-linux-x64.tar.gz 解压jdk<br> 5、chmod -R 777 /usr/local/java 更改文件夹的权限，让任何操作者都可以访问<br> 6、设置环境变量 ，ubuntu设置环境变量的文件有哪些？</p>
<p> /etc/profile:<br> 在登录时,操作系统定制用户环境时使用的第一个文件,此文件为系统的每个用户设置环境信息,当用户第一次登录时,该文件被执行。<br>/etc/environment在登录时操作系统使用的第二个文件,系统在读取你自己的profile前,设置环境文件的环境变量；<br>/etc/bashrc<br> —— 为每一个运行bash shell的用户执行此文件.当bash shell被打开时,该文件被读取；<br>~/.profile<br> —— 每个用户都可使用该文件输入专用于自己使用的shell信息，当用户登录时，该文件仅仅执行一次！默认情况下,它设置一些环境变量,执行用户的.bashrc文件；<br>~/.bashrc<br> —— 该文件包含专用于你的bash shell的bash信息,当登录时以及每次打开新的shell时,该文件被读取<br>这时候我们可选择修改/etc/profile文件<br>vim /etc/profile件<br>加入一下环境变量<br>#<br> java enviroment</p>
<p>export JAVA_HOME=/usr/local/java/jdk1.7.0_71</p>
<p>export CLASSPATH=.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib:$CLASSPATH</p>
<p>export PATH=$JAVA_HOME/bin:$PATH<br>按下esc<br> 输入wq<br> 7、让环境变量立即生效 source /etc/profile<br>8、设置默认JDK<br>sudo<br> update-alternatives –install “/usr/bin/java” “java” “/usr/local/java/jdk1.7.0_71/bin/java” 300</p>
<p>sudo update-alternatives –install “/usr/bin/javac” “javac” “/usr/local/java/jdk1.7.0_71/bin/javac”<br> 300</p>
<p>sudo update-alternatives –install “/usr/bin/javaws” “javaws” “/usr/local/java/jdk1.7.0_71/bin/javaws”<br> 300</p>
<p>9、测试 java -version显示jdk版本配置成功<br>java version “1.7.0_71”</p>
<p>Java(TM) SE Runtime Environment (build 1.7.0_71-b14)</p>
<p>Java HotSpot(TM) 64-Bit Server VM (build 24.71-b01, mixed mode)<br>查看环境变量可以echo<br> $JAVA_HOME显示=/usr/local/java/jdk1.7.0_71</p>
<p>ubuntu下的Mysql安装</p>
<p> 1、跟新源，sudo<br> apt-get update<br>2、首先检查系统中是否已经安装了MySQL<br> 在终端输入sudo netstat -tap|grep mysql 如果没有反应则未安装，如果已经安装则显示<br> tcp 0 0 localhost:mysql <em>:</em> LISTEN<br> 3、如果没有安装，则安装MySQL.<br> 在终端输入 sudo apt-get install mysql-server mysql-client<br> 在此安装过程中会让你输入root用户(管理MySQL数据库用户，非Linux系统用户)密码，按照要求输入即可。如下所示<br> 4、如何判断mysql是否安装成功<br> 输入sudo service mysql restart 如果成功则显示mysql启动成功<br> 5、登陆mysql,在终端输入mysql -u root -p 输入刚刚设置的密码即可登陆mysql</p>
<p>ubuntu下的Mysql卸载</p>
<p>Mysql卸载一定要卸载干净，避免再次安装时出现莫名奇妙的错误</p>
<p> 1、sudo apt-get autoremove mysql* –purge<br> 2、sudo rm /var/lib/mysql/ -R<br> 3、sudo rm /etc/mysql/ -R</p>
]]></content>
<summary type="html">
<h2 id="ubuntu下的Jdk-Mysql安装"><a href="#ubuntu下的Jdk-Mysql安装" class="headerlink" title="ubuntu下的Jdk Mysql安装"></a>ubuntu下的Jdk Mysql安装</h2><p> 软件环境 ：</p>
<p> 操作系统：Ubuntu 14.04.2 LTS（cat /etc/issue） x86_64（uname -m）</p>
<p> JAVA版本：jdk-7u71-linux-x64.tar.gz</p>
<p> 软件下载地址：<a href="http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html">http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html</a></p>
<p> 也可以在线下载（由于oracle下载需要选择确认，所以我们下载时需要设置请求头的Cookie）：<br> wget –no-check-certificate –no-cookies –header “Cookie: oraclelicense=accept-securebackup-cookie” <a href="http://download.oracle.com/otn-pub/java/jdk/7u71-b14/jdk-7u71-linux-x64.tar.gz">http://download.oracle.com/otn-pub/java/jdk/7u71-b14/jdk-7u71-linux-x64.tar.gz</a></p>
</summary>
<category term="Ubuntu" scheme="http://bee.gs/tags/Ubuntu/"/>
<category term="Linux" scheme="http://bee.gs/tags/Linux/"/>
<category term="Jdk" scheme="http://bee.gs/tags/Jdk/"/>
<category term="Mysql" scheme="http://bee.gs/tags/Mysql/"/>
<category term="安装" scheme="http://bee.gs/tags/%E5%AE%89%E8%A3%85/"/>
</entry>
<entry>
<title>Ubuntu -Sublime-安装</title>
<link href="http://bee.gs/2016/10/22/tech/ubuntu-sublime-install/"/>
<id>http://bee.gs/2016/10/22/tech/ubuntu-sublime-install/</id>
<published>2016-10-21T17:01:00.000Z</published>
<updated>2016-12-27T14:58:17.249Z</updated>
<content type="html"><![CDATA[<h2 id="web前端的开发神器"><a href="#web前端的开发神器" class="headerlink" title="web前端的开发神器"></a>web前端的开发神器</h2><blockquote>
<p><strong>WebStrom和Sublime堪称史上最强的web开发神器：</strong></p>
<p>提供了智能的代码提示，智能补全，各种强大的轻量级的插件支持。WebStrom相对智能一点，但是耗内存大，有时会卡顿现象，界面不简洁，Sublime相对灵活轻巧，界面清爽，功能齐全，插件快速安装等特点。</p>
</blockquote>
<a id="more"></a>
<p>###ubuntu上安装教程：</p>
<blockquote>
<p><strong>1、安装<a href="http://www.sublimetext.com/3" target="_blank" rel="external">Sublime Text 3</a> 及常用的神器插件</strong><br>首先添加sublime text 3的仓库：<code>sudo add-apt-repository ppa:webupd8team/sublime-text-3</code><br>根据提示按ENTER 继续，建立信任数据库<br>再添加sublime text 3的仓库：<code>sudo apt update</code><br>最后安装Sublime Text 3：<code>sudo apt install sublime-text-installer</code><br>软件安装成功。<br><strong>2、安装Package Control</strong><br>输入命令subl打开Sublime Text 3<br>按快捷键ctrl+`(Esc下面的按键)，在弹出的控制台输入一下代码回车<br>import urllib.request,os,hashlib; h = ‘2915d1851351e5ee549c20394736b442’ + ‘8bc59f460fa1548d1514676163dafc88’; pf = ‘Package Control.sublime-package’; ipp = sublime.installed_packages_path(); urllib.request.install_opener( urllib.request.build_opener( urllib.request.ProxyHandler()) ); by = urllib.request.urlopen( ‘<a href="http://packagecontrol.io/" target="_blank" rel="external">http://packagecontrol.io/</a>‘ + pf.replace(‘ ‘, ‘%20’)).read(); dh = hashlib.sha256(by).hexdigest(); print(‘Error validating download (got %s instead of %s), please try manual install’ % (dh, h)) if dh != h else open(os.path.join( ipp, pf), ‘wb’ ).write(by)<br>重启软件后可以在Preference菜单下找到Package Control命令，单击运行Packeage Control,输入</p>
</blockquote>
<hr>
<p>###常用插件</p>
<p>####<em>安装方法ctrl+shift+p>输入install>按下enter>查找插件>确认</em><br><figure class="highlight plain"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div><div class="line">33</div><div class="line">34</div><div class="line">35</div><div class="line">36</div><div class="line">37</div><div class="line">38</div><div class="line">39</div><div class="line">40</div><div class="line">41</div><div class="line">42</div><div class="line">43</div><div class="line">44</div><div class="line">45</div><div class="line">46</div><div class="line">47</div></pre></td><td class="code"><pre><div class="line"></div><div class="line">1.Git</div><div class="line">常用的git社区有csdn、github、开源中国，还有自己搭建的git服务器，在开过程中我们习</div><div class="line">惯了在软件里直接使用git,而不是去切换到终端运行相应的命令。</div><div class="line"></div><div class="line">2.GitGutter</div><div class="line">GitGutter 更好的帮助开发者查看文件之前的改动和差异，提升开发效率，</div><div class="line">减少错误的提交，代码冲突。</div><div class="line"></div><div class="line">3.Emmet</div><div class="line">Emmet 项目的前身是前端开发人员熟知的 Zen Coding（快速编写 HTML/CSS 代码的方案）。</div><div class="line">在 Sublime Text 编辑器中搭配 Emmet 插件真的是让你编码快上加快。</div><div class="line"></div><div class="line">4.SublimeREPL</div><div class="line">这个插件允许你在Sublime里面运行各种语言（如NodeJs,Python,Scala等等），</div><div class="line">所以编程少不了它</div><div class="line"></div><div class="line">5.DocBlockr</div><div class="line">如果你遵循的编码的风格很严格，这款插件能够使你的任务更容易。DocBlokr 帮助你创造你的代码注释，</div><div class="line">通过解析功能，参数，变量，并且自动添加基本项目</div><div class="line"></div><div class="line">6.CSSComb</div><div class="line">这是用来给css属性进行排序格式化的插件，如果你想让你的代码看起来简洁明了，清新飘逸，</div><div class="line">那么这个插件就是一个有效的解决方案，特别是很多人一个开发的时候可以保持编码风格统一</div><div class="line"></div><div class="line">7.Alignment</div><div class="line">这个插件让你能对齐你的代码，包括 PHP、CSS 和 Javascript。代码看起来更简洁和可读，便于编辑。</div><div class="line"></div><div class="line">8.Trmmer</div><div class="line">你知道当你编写代码时，由于错误或别的某些原因，会产生一些不必要的空格。</div><div class="line">需要注意的是多余的空格有时也会造成错误。这个插件会自动删除这些不必要的空格。</div><div class="line"></div><div class="line">9.ColorPicker</div><div class="line">如果你经常要查看或设置颜色值，这个插件可以很方便地调用你本机的调色板应用。</div><div class="line">（译者扩充：）这是一个双向的功能，你既可以在调色板中选择一个颜色，</div><div class="line">然后按“确定”按钮把该值填写到 SublimeText 中活动文档的当前位置，</div><div class="line">也可以在活动文档中选择一个颜色的值，按此插件的快捷键就会在显示的调色板中定位到该值所对应的颜色</div><div class="line"></div><div class="line">10.angularjs</div><div class="line">在编写angularjs时可以快速提示补全，避免写错</div><div class="line"></div><div class="line">11.reactjs</div><div class="line">我们经常会忘记一些语法，需要去查找，为了避免不必要的麻烦，</div><div class="line">装上reactjs就可以解决忘记react语法的问题</div><div class="line"></div><div class="line">12.SpaceGray</div><div class="line">一个好的主题可以让人心情愉悦，避免敲错代码，装上它，就可以拥有令人兴奋的主题。</div></pre></td></tr></table></figure></p>
<h2 id="等等，还有好多好用的插件，可根据自己的需要安装。"><a href="#等等，还有好多好用的插件，可根据自己的需要安装。" class="headerlink" title="####等等，还有好多好用的插件，可根据自己的需要安装。"></a>####等等，还有好多好用的插件，可根据自己的需要安装。</h2><p>###Sublime常用快捷键：</p>
<blockquote>
<p>掌握基本的代码编辑器的快捷键，能让你打码更有效率,刚开始可能不大记得住，多敲几次就能熟悉并使用它</p>
<p><strong>精华键 :</strong></p>
<p>Ctrl+Shift+P：打开命令面板<br>Ctrl+P：搜索项目中的文件<br>Ctrl+G：跳转到第几行<br>Ctrl+W：关闭当前打开文件<br>Ctrl+Shift+W：关闭所有打开文件<br>Ctrl+Shift+V：粘贴并格式化<br>Ctrl+D：选择单词，重复可增加选择下一个相同的单词<br>Ctrl+L：选择行，重复可依次增加选择下一行<br>Ctrl+Shift+L：选择多行<br>Ctrl+Shift+Enter：在当前行前插入新行<br>Ctrl+X：删除当前行<br>Ctrl+M：跳转到对应括号<br>Ctrl+U：软撤销，撤销光标位置<br>Ctrl+J：选择标签内容<br>Ctrl+F：查找内容<br>Ctrl+Shift+F：查找并替换<br>Ctrl+H：替换<br>Ctrl+R：前往 method<br>Ctrl+N：新建窗口<br>Ctrl+K+B：开关侧栏<br>Ctrl+Shift+M：选中当前括号内容，重复可选着括号本身<br>Ctrl+F2：设置/删除标记<br>Ctrl+/：注释当前行<br>Ctrl+Shift+/：当前位置插入注释<br>Ctrl+Alt+/：块注释，并Focus到首行，写注释说明用的<br>Ctrl+Shift+A：选择当前标签前后，修改标签用的<br>F11：全屏<br>Shift+F11：全屏免打扰模式，只编辑当前文件<br>Alt+F3：选择所有相同的词<br>Alt+.：闭合标签<br>Alt+Shift+数字：分屏显示<br>Alt+数字：切换打开第N个文件<br>Shift+右键拖动：光标多不，用来更改或插入列内容<br>鼠标的前进后退键可切换Tab文件<br>按Ctrl，依次点击或选取，可需要编辑的多个位置<br>按Ctrl+Shift+上下键，可替换行</p>
<p><strong>选择类 :</strong></p>
<p>Ctrl+D 选中光标所占的文本，继续操作则会选中下一个相同的文本。<br>Alt+F3 选中文本按下快捷键，即可一次性选择全部的相同文本进行同时编辑。举个栗子：快速选中并更改所有相同的变量名、函数名等。<br>Ctrl+L 选中整行，继续操作则继续选择下一行，效果和 Shift+↓ 效果一样。<br>Ctrl+Shift+L 先选中多行，再按下快捷键，会在每行行尾插入光标，即可同时编辑这些行。<br>Ctrl+Shift+M 选择括号内的内容（继续选择父括号）。举个栗子：快速选中删除函数中的代码，重写函数体代码或重写括号内里的内容。<br>Ctrl+M 光标移动至括号内结束或开始的位置。<br>Ctrl+Enter 在下一行插入新行。举个栗子：即使光标不在行尾，也能快速向下插入一行。<br>Ctrl+Shift+Enter 在上一行插入新行。举个栗子：即使光标不在行首，也能快速向上插入一行。<br>Ctrl+Shift+[ 选中代码，按下快捷键，折叠代码。<br>Ctrl+Shift+] 选中代码，按下快捷键，展开代码。<br>Ctrl+K+0 展开所有折叠代码。<br>Ctrl+← 向左单位性地移动光标，快速移动光标。<br>Ctrl+→ 向右单位性地移动光标，快速移动光标。<br>shift+↑ 向上选中多行。<br>shift+↓ 向下选中多行。<br>Shift+← 向左选中文本。<br>Shift+→ 向右选中文本。<br>Ctrl+Shift+← 向左单位性地选中文本。<br>Ctrl+Shift+→ 向右单位性地选中文本。<br>Ctrl+Shift+↑ 将光标所在行和上一行代码互换（将光标所在行插入到上一行之前）。<br>Ctrl+Shift+↓ 将光标所在行和下一行代码互换（将光标所在行插入到下一行之后）。<br>Ctrl+Alt+↑ 向上添加多行光标，可同时编辑多行。<br>Ctrl+Alt+↓ 向下添加多行光标，可同时编辑多行。</p>
<p><strong>编辑类 :</strong><br>Ctrl+J 合并选中的多行代码为一行。举个栗子：将多行格式的CSS属性合并为一行。<br>Ctrl+Shift+D 复制光标所在整行，插入到下一行。<br>Tab 向右缩进。<br>Shift+Tab 向左缩进。<br>Ctrl+K+K 从光标处开始删除代码至行尾。<br>Ctrl+Shift+K 删除整行。<br>Ctrl+/ 注释单行。<br>Ctrl+Shift+/ 注释多行。<br>Ctrl+K+U 转换大写。<br>Ctrl+K+L 转换小写。<br>Ctrl+Z 撤销。<br>Ctrl+Y 恢复撤销。<br>Ctrl+U 软撤销，感觉和 Gtrl+Z 一样。<br>Ctrl+F2 设置书签<br>Ctrl+T 左右字母互换。<br>F6 单词检测拼写</p>
<p><strong>搜索类 :</strong><br>Ctrl+F 打开底部搜索框，查找关键字。<br>Ctrl+shift+F 在文件夹内查找，与普通编辑器不同的地方是sublime允许添加多个文件夹进行查找，略高端，未研究。<br>Ctrl+P 打开搜索框。举个栗子：1、输入当前项目中的文件名，快速搜索文件，2、输入@和关键字，查找文件中函数名，3、输入：和数字，跳转到文件中该行代码，4、输入#和关键字，查找变量名。<br>Ctrl+G 打开搜索框，自动带：，输入数字跳转到该行代码。举个栗子：在页面代码比较长的文件中快速定位。<br>Ctrl+R 打开搜索框，自动带@，输入关键字，查找文件中的函数名。举个栗子：在函数较多的页面快速查找某个函数。<br>Ctrl+： 打开搜索框，自动带#，输入关键字，查找文件中的变量名、属性名等。<br>Ctrl+Shift+P 打开命令框。场景栗子：打开命名框，输入关键字，调用sublime text或插件的功能，例如使用package安装插件。<br>Esc 退出光标多行选择，退出搜索框，命令框等。<br>显示类<br>Ctrl+Tab 按文件浏览过的顺序，切换当前窗口的标签页。<br>Ctrl+PageDown 向左切换当前窗口的标签页。<br>Ctrl+PageUp 向右切换当前窗口的标签页。<br>Alt+Shift+1 窗口分屏，恢复默认1屏（非小键盘的数字）<br>Alt+Shift+2 左右分屏-2列<br>Alt+Shift+3 左右分屏-3列<br>Alt+Shift+4 左右分屏-4列<br>Alt+Shift+5 等分4屏<br>Alt+Shift+8 垂直分屏-2屏<br>Alt+Shift+9 垂直分屏-3屏<br>Ctrl+K+B 开启/关闭侧边栏。<br>F11 全屏模式<br>Shift+F11 免打扰模式</p>
</blockquote>
]]></content>
<summary type="html">
<h2 id="web前端的开发神器"><a href="#web前端的开发神器" class="headerlink" title="web前端的开发神器"></a>web前端的开发神器</h2><blockquote>
<p><strong>WebStrom和Sublime堪称史上最强的web开发神器：</strong></p>
<p>提供了智能的代码提示，智能补全，各种强大的轻量级的插件支持。WebStrom相对智能一点，但是耗内存大，有时会卡顿现象，界面不简洁，Sublime相对灵活轻巧，界面清爽，功能齐全，插件快速安装等特点。</p>
</blockquote>
</summary>
<category term="Ubuntu" scheme="http://bee.gs/tags/Ubuntu/"/>
<category term="Linux" scheme="http://bee.gs/tags/Linux/"/>
<category term="安装" scheme="http://bee.gs/tags/%E5%AE%89%E8%A3%85/"/>
<category term="Sublime" scheme="http://bee.gs/tags/Sublime/"/>
</entry>
<entry>
<title>Java-Jsch-教程</title>
<link href="http://bee.gs/2016/10/21/tech/java-jsch/"/>
<id>http://bee.gs/2016/10/21/tech/java-jsch/</id>
<published>2016-10-21T08:48:00.000Z</published>
<updated>2016-12-27T14:58:17.249Z</updated>
<content type="html"><![CDATA[<h2 id="jsch教程"><a href="#jsch教程" class="headerlink" title="jsch教程"></a>jsch教程</h2><blockquote>
<p>jsch是ssh2的一个纯Java实现。它允许你连接到一个sshd服务器，使用端口转发，X11转发，文件传输等等。你可以将它的功能集成到你自己的程序中。同时该项目也提供一个J2ME版本用来在手机上直连SSHD服务器。</p>
</blockquote>
<p>####一般连接到服务器有两种方式:<br>1、通过用户名和密码连接，缺点（出于安全需要，一般服务器的密码会定期修改，程序部署后将不得不经常更新配置文件中的密 码。）<br>2、通过用户名和ssh private key file连接，缺点(因为Java程序必须和private key file在同一台机器上，将服务器的private key file复制到本地后，本地机器的安全措施可能会使private key file被窃取，威胁服务器安全。)</p>
<hr>
<p>jsch官网地址为<a href="http://www.jcraft.com/jsch/" target="_blank" rel="external">http://www.jcraft.com/jsch/</a>,实现jsch功能需要添加一个jsch-0.1.51.jar包，官网有一些例子可直接下载参考。</p>
<a id="more"></a>
<p>maven的配置为:</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div></pre></td><td class="code"><pre><div class="line"><span class="tag"><<span class="name">dependency</span>></span></div><div class="line"> <span class="tag"><<span class="name">groupId</span>></span>com.jcraft<span class="tag"></<span class="name">groupId</span>></span></div><div class="line"> <span class="tag"><<span class="name">artifactId</span>></span>jsch<span class="tag"></<span class="name">artifactId</span>></span></div><div class="line"> <span class="tag"><<span class="name">version</span>></span>0.1.51<span class="tag"></<span class="name">version</span>></span></div><div class="line"><span class="tag"></<span class="name">dependency</span>></span></div></pre></td></tr></table></figure>
<p>jsch连接到Linux的基本原理和用ssh一样，需要ip地址，端口（一般为22），用户名，密码，为了方便配置，可以把静态变量初始化在配置文件中:</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div></pre></td><td class="code"><pre><div class="line">#jsch配置</div><div class="line">host.ip=192.168.1.1</div><div class="line">host.user=root</div><div class="line">host.port=22</div><div class="line">host.password=123456</div><div class="line">host.connect.timeout=5000</div></pre></td></tr></table></figure>
<p>获取配置文件变量的工具类：</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div><div class="line">33</div><div class="line">34</div><div class="line">35</div><div class="line">36</div><div class="line">37</div><div class="line">38</div><div class="line">39</div><div class="line">40</div><div class="line">41</div><div class="line">42</div><div class="line">43</div><div class="line">44</div><div class="line">45</div><div class="line">46</div><div class="line">47</div><div class="line">48</div><div class="line">49</div><div class="line">50</div><div class="line">51</div><div class="line">52</div><div class="line">53</div><div class="line">54</div><div class="line">55</div><div class="line">56</div><div class="line">57</div><div class="line">58</div><div class="line">59</div><div class="line">60</div><div class="line">61</div><div class="line">62</div><div class="line">63</div><div class="line">64</div><div class="line">65</div><div class="line">66</div><div class="line">67</div><div class="line">68</div><div class="line">69</div><div class="line">70</div><div class="line">71</div><div class="line">72</div><div class="line">73</div><div class="line">74</div><div class="line">75</div><div class="line">76</div><div class="line">77</div><div class="line">78</div><div class="line">79</div><div class="line">80</div><div class="line">81</div><div class="line">82</div><div class="line">83</div><div class="line">84</div><div class="line">85</div><div class="line">86</div><div class="line">87</div><div class="line">88</div><div class="line">89</div><div class="line">90</div><div class="line">91</div><div class="line">92</div><div class="line">93</div></pre></td><td class="code"><pre><div class="line"><span class="keyword">package</span> com.personal.core.constant;</div><div class="line"></div><div class="line"></div><div class="line"><span class="keyword">import</span> com.personal.core.utils.PropertiesLoader;</div><div class="line"><span class="keyword">import</span> org.apache.commons.lang.StringUtils;</div><div class="line"><span class="keyword">import</span> org.springframework.core.io.DefaultResourceLoader;</div><div class="line"></div><div class="line"><span class="keyword">import</span> java.io.File;</div><div class="line"><span class="keyword">import</span> java.io.IOException;</div><div class="line"><span class="keyword">import</span> java.util.HashMap;</div><div class="line"><span class="keyword">import</span> java.util.Map;</div><div class="line"></div><div class="line"><span class="comment">/**</span></div><div class="line"> * 注释:全局配置类</div><div class="line"> *</div><div class="line"> * <span class="doctag">@Author</span>： coding99</div><div class="line"> * <span class="doctag">@Date</span>： 16-9-2</div><div class="line"> * <span class="doctag">@Time</span>： 下午7:33</div><div class="line"> */</div><div class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">Global</span> </span>{</div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 当前对象实例</div><div class="line"> */</div><div class="line"> <span class="keyword">private</span> <span class="keyword">static</span> Global global = <span class="keyword">new</span> Global();</div><div class="line"> </div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 保存全局属性值</div><div class="line"> */</div><div class="line"> <span class="keyword">private</span> <span class="keyword">static</span> Map<String, String> map = <span class="keyword">new</span> HashMap<String, String>();</div><div class="line"> </div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 属性文件加载对象</div><div class="line"> */</div><div class="line"> <span class="keyword">private</span> <span class="keyword">static</span> PropertiesLoader loader = <span class="keyword">new</span> PropertiesLoader(<span class="string">"sysConfig.properties"</span>);</div><div class="line"></div><div class="line"></div><div class="line"> </div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 获取当前对象实例</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> Global <span class="title">getInstance</span><span class="params">()</span> </span>{</div><div class="line"> <span class="keyword">return</span> global;</div><div class="line"> }</div><div class="line"> </div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 获取配置</div><div class="line"> * <span class="doctag">@see</span> {fns:getConfig('adminPath')}</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> String <span class="title">getConfig</span><span class="params">(String key)</span> </span>{</div><div class="line"> String value = map.get(key);</div><div class="line"> <span class="keyword">if</span> (value == <span class="keyword">null</span>){</div><div class="line"> value = loader.getProperty(key);</div><div class="line"> map.put(key, value != <span class="keyword">null</span> ? value : StringUtils.EMPTY);</div><div class="line"> }</div><div class="line"> <span class="keyword">return</span> value;</div><div class="line"> }<span class="comment">/** * 获取工程路径 * <span class="doctag">@return</span> */</span> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> String <span class="title">getProjectPath</span><span class="params">()</span></span>{ <span class="comment">// 如果配置了工程路径，则直接返回，否则自动获取。String projectPath = Global.getConfig("projectPath");if (StringUtils.isNotBlank(projectPath)){return projectPath;}try {File file = new DefaultResourceLoader().getResource("").getFile();if (file != null){while(true){File f = new File(file.getPath() + File.separator + "src" + File.separator + "main");if (f == null || f.exists()){break;}if (file.getParentFile() != null){file = file.getParentFile();}else{break;}}projectPath = file.toString();}} catch (IOException e) {e.printStackTrace();}return projectPath; }}</span></div><div class="line"> </div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 获取工程路径</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> String <span class="title">getProjectPath</span><span class="params">()</span></span>{</div><div class="line"> <span class="comment">// 如果配置了工程路径，则直接返回，否则自动获取。</span></div><div class="line"> String projectPath = Global.getConfig(<span class="string">"projectPath"</span>);</div><div class="line"> <span class="keyword">if</span> (StringUtils.isNotBlank(projectPath)){</div><div class="line"> <span class="keyword">return</span> projectPath;</div><div class="line"> }</div><div class="line"> <span class="keyword">try</span> {</div><div class="line"> File file = <span class="keyword">new</span> DefaultResourceLoader().getResource(<span class="string">""</span>).getFile();</div><div class="line"> <span class="keyword">if</span> (file != <span class="keyword">null</span>){</div><div class="line"> <span class="keyword">while</span>(<span class="keyword">true</span>){</div><div class="line"> File f = <span class="keyword">new</span> File(file.getPath() + File.separator + <span class="string">"src"</span> + File.separator + <span class="string">"main"</span>);</div><div class="line"> <span class="keyword">if</span> (f == <span class="keyword">null</span> || f.exists()){</div><div class="line"> <span class="keyword">break</span>;</div><div class="line"> }</div><div class="line"> <span class="keyword">if</span> (file.getParentFile() != <span class="keyword">null</span>){</div><div class="line"> file = file.getParentFile();</div><div class="line"> }<span class="keyword">else</span>{</div><div class="line"> <span class="keyword">break</span>;</div><div class="line"> }</div><div class="line"> }</div><div class="line"> projectPath = file.toString();</div><div class="line"> }</div><div class="line"> } <span class="keyword">catch</span> (IOException e) {</div><div class="line"> e.printStackTrace();</div><div class="line"> }</div><div class="line"> <span class="keyword">return</span> projectPath;</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line">}</div></pre></td></tr></table></figure>
<p>获取脚本的方法通过一个工具类读取这个配置文件，用dom4j进行解析，获取相应指定shell name的脚本,例如</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div></pre></td><td class="code"><pre><div class="line"><?xml version="1.0" encoding="UTF-8"?></div><div class="line"><span class="tag"><<span class="name">configuration</span>></span></div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment"><!--开发环境--></span></div><div class="line"> <span class="tag"><<span class="name">shell</span> <span class="attr">name</span>=<span class="string">"ls"</span> <span class="attr">env</span>=<span class="string">"dev"</span>></span></div><div class="line"> <span class="tag"><<span class="name">description</span>></span>查看opt文件夹内容<span class="tag"></<span class="name">description</span>></span></div><div class="line"> <span class="tag"><<span class="name">step</span>></span>ls -ltr /opt<span class="tag"></<span class="name">step</span>></span></div><div class="line"> <span class="tag"></<span class="name">shell</span>></span></div><div class="line"></div><div class="line"> <span class="comment"><!--开发环境--></span></div><div class="line"> <span class="tag"><<span class="name">shell</span> <span class="attr">name</span>=<span class="string">"ls"</span> <span class="attr">env</span>=<span class="string">"uat"</span>></span></div><div class="line"> <span class="tag"><<span class="name">description</span>></span>查看opt文件夹内容<span class="tag"></<span class="name">description</span>></span></div><div class="line"> <span class="tag"><<span class="name">step</span>></span>ls -ltr /opt<span class="tag"></<span class="name">step</span>></span></div><div class="line"> <span class="tag"></<span class="name">shell</span>></span></div><div class="line"></div><div class="line"> <span class="comment"><!--生产环境--></span></div><div class="line"> <span class="tag"><<span class="name">shell</span> <span class="attr">name</span>=<span class="string">"ls"</span> <span class="attr">env</span>=<span class="string">"pro"</span>></span></div><div class="line"> <span class="tag"><<span class="name">description</span>></span>查看opt文件夹内容<span class="tag"></<span class="name">description</span>></span></div><div class="line"> <span class="tag"><<span class="name">step</span>></span>ls -ltr /opt<span class="tag"></<span class="name">step</span>></span></div><div class="line"> <span class="tag"></<span class="name">shell</span>></span></div><div class="line"></div><div class="line"></div><div class="line"><span class="tag"></<span class="name">configuration</span>></span></div></pre></td></tr></table></figure>
<p>获取脚本的方法通过一个工具类读取这个配置文件，用dom4j进行解析，获取相应指定shell name的脚本,例如</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div><div class="line">33</div><div class="line">34</div><div class="line">35</div><div class="line">36</div><div class="line">37</div><div class="line">38</div><div class="line">39</div><div class="line">40</div><div class="line">41</div><div class="line">42</div><div class="line">43</div><div class="line">44</div><div class="line">45</div><div class="line">46</div><div class="line">47</div><div class="line">48</div><div class="line">49</div><div class="line">50</div><div class="line">51</div><div class="line">52</div><div class="line">53</div><div class="line">54</div><div class="line">55</div><div class="line">56</div><div class="line">57</div><div class="line">58</div><div class="line">59</div><div class="line">60</div><div class="line">61</div><div class="line">62</div><div class="line">63</div><div class="line">64</div><div class="line">65</div><div class="line">66</div><div class="line">67</div><div class="line">68</div><div class="line">69</div><div class="line">70</div><div class="line">71</div><div class="line">72</div><div class="line">73</div><div class="line">74</div><div class="line">75</div><div class="line">76</div><div class="line">77</div><div class="line">78</div><div class="line">79</div><div class="line">80</div><div class="line">81</div><div class="line">82</div><div class="line">83</div><div class="line">84</div></pre></td><td class="code"><pre><div class="line"><span class="keyword">package</span> com.personal.core.utils;</div><div class="line"></div><div class="line"><span class="keyword">import</span> com.personal.core.constant.Global;</div><div class="line"><span class="keyword">import</span> org.dom4j.Document;</div><div class="line"><span class="keyword">import</span> org.dom4j.Element;</div><div class="line"><span class="keyword">import</span> org.dom4j.io.SAXReader;</div><div class="line"></div><div class="line"><span class="keyword">import</span> java.io.File;</div><div class="line"><span class="keyword">import</span> java.util.List;</div><div class="line"></div><div class="line"><span class="comment">/**</span></div><div class="line"> * 注释</div><div class="line"> *</div><div class="line"> * <span class="doctag">@Author</span>： coding99</div><div class="line"> * <span class="doctag">@Date</span>： 16-9-2</div><div class="line"> * <span class="doctag">@Time</span>： 下午9:31</div><div class="line"> */</div><div class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">ShellConfigUtil</span> </span>{</div><div class="line"></div><div class="line"> <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> String SHELL_ENV = Global.getConfig(<span class="string">"environment"</span>);</div><div class="line"> <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> String DEFAULT_SHELL_CONFIG = ShellConfigUtil.class.getResource(<span class="string">"/"</span>).getPath()+<span class="string">"shell.xml"</span>;</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">private</span> <span class="title">ShellConfigUtil</span><span class="params">()</span> </span>{</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 取得脚本</div><div class="line"> * <span class="doctag">@param</span> shellName</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> * <span class="doctag">@throws</span> Exception</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> String <span class="title">getShell</span><span class="params">(String shellName)</span><span class="keyword">throws</span> Exception</span>{</div><div class="line"> String shellContent = <span class="string">""</span>;</div><div class="line"></div><div class="line"> List<Element> shells = getShellEelements();</div><div class="line"></div><div class="line"> <span class="keyword">for</span>(Element shell : shells) {</div><div class="line"> String name = shell.attributeValue(<span class="string">"name"</span>);</div><div class="line"> String env = shell.attributeValue(<span class="string">"env"</span>);</div><div class="line"> <span class="comment">//把shell数组遍历</span></div><div class="line"> <span class="keyword">if</span>(shellName.equals(name) && SHELL_ENV.equals(env)) {</div><div class="line"> shellContent = getShellResult(shell);</div><div class="line"> }</div><div class="line"></div><div class="line"> }</div><div class="line"> <span class="keyword">return</span> shellContent;</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 解析xml</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> * <span class="doctag">@throws</span> Exception</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> List<Element> <span class="title">getShellEelements</span><span class="params">()</span> <span class="keyword">throws</span> Exception</span>{</div><div class="line"> SAXReader saxReader = <span class="keyword">new</span> SAXReader();<span class="comment">//创建读取配置文件的对象</span></div><div class="line"> Document document = saxReader.read(<span class="keyword">new</span> File(DEFAULT_SHELL_CONFIG));<span class="comment">//开始读取配置文件</span></div><div class="line"> Element element = document.getRootElement();</div><div class="line"> List<Element> shellElements = element.elements(<span class="string">"shell"</span>);</div><div class="line"> <span class="keyword">return</span> shellElements;</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 获取脚本内容</div><div class="line"> * <span class="doctag">@param</span> shell</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> String <span class="title">getShellResult</span><span class="params">(Element shell)</span> </span>{</div><div class="line"> String result = <span class="string">""</span>;</div><div class="line"> List<Element> steps = shell.elements(<span class="string">"step"</span>);</div><div class="line"> <span class="keyword">for</span> (Element step : steps) {</div><div class="line"> result = step.getText();</div><div class="line"> }</div><div class="line"> <span class="keyword">return</span> result;</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">main</span><span class="params">(String[] args)</span> <span class="keyword">throws</span> Exception</span>{</div><div class="line"> ShellConfigUtil.getShell(<span class="string">"ls"</span>);</div><div class="line"> }</div><div class="line"></div><div class="line">}</div></pre></td></tr></table></figure>
<p>#JSCH实现原理：<br>jsch进行连接服务器连接时可以看做时java的jdbc连接，首先我们需要实例化一个jsch对象，再利用这个对象 根据用户名，主机ip，端口获取一个Session对象，设置好相应的参数后，就进行连接，创建连接后这个session是一直可用的，所以不需要关闭。之后我们需要在session上建立channel通道<br>Channel的类型可以为如下类型：<br>shell - ChannelShell exec - ChannelExec <br>direct-tcpip - ChannelDirectTCPIP sftp - ChannelSftp subsystem - ChannelSubsystem<br> 其中，ChannelShell和ChannelExec比较类似，都可以作为执行Shell脚本的Channel类型。它们有一个比较重要的区别：ChannelShell可以看作是执行一个交互式的Shell，而ChannelExec是执行一个Shell脚本。<br>实现远程命令操作我们需要创建ChannelExec对象。<br>实现文件上传下载我们需要实现ChannelSftp对象。<br>ChannelSftp类是JSch实现SFTP核心类，它包含了所有SFTP的方法，如：<br>put()： 文件上传<br>get()： 文件下载<br>cd()： 进入指定目录<br>ls()： 得到指定目录下的文件列表<br>rename()： 重命名指定文件或目录<br>rm()： 删除指定文件<br>mkdir()： 创建目录<br>rmdir()： 删除目录下面有个工具类展示<br>应用实例：<br>JschUtil.java</p>
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class="line"><span class="keyword">import</span> java.io.*;</div><div class="line"><span class="keyword">import</span> java.nio.charset.Charset;</div><div class="line"><span class="keyword">import</span> java.util.*;</div><div class="line"><span class="comment">/**</span></div><div class="line"> * 注释</div><div class="line"> *</div><div class="line"> * <span class="doctag">@Author</span>： coding99</div><div class="line"> * <span class="doctag">@Date</span>： 16-9-2</div><div class="line"> * <span class="doctag">@Time</span>： 下午7:33</div><div class="line"> */</div><div class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">JschUtil</span> </span>{</div><div class="line"></div><div class="line"> <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> Logger logger = LoggerFactory.getLogger(JschUtil.class);</div><div class="line"></div><div class="line"> <span class="keyword">private</span> String charset = <span class="string">"UTF-8"</span>; <span class="comment">// 设置编码格式,可以根据服务器的编码设置相应的编码格式</span></div><div class="line"> <span class="keyword">private</span> JSch jsch;</div><div class="line"> <span class="keyword">private</span> Session session;</div><div class="line"> Channel channel = <span class="keyword">null</span>;</div><div class="line"> ChannelSftp chSftp = <span class="keyword">null</span>;</div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">//初始化配置参数</span></div><div class="line"> <span class="keyword">private</span> String jschHost = Global.getConfig(<span class="string">"host.ip"</span>);</div><div class="line"> <span class="keyword">private</span> <span class="keyword">int</span> jschPort = Integer.parseInt(Global.getConfig(<span class="string">"host.port"</span>));</div><div class="line"> <span class="keyword">private</span> String jschUserName = Global.getConfig(<span class="string">"host.user"</span>);</div><div class="line"> <span class="keyword">private</span> String jschPassWord = Global.getConfig(<span class="string">"host.password"</span>);</div><div class="line"> <span class="keyword">private</span> <span class="keyword">int</span> jschTimeOut = Integer.parseInt(Global.getConfig(<span class="string">"host.connect.timeout"</span>));</div><div class="line"></div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 静态内部类实现单例模式</div><div class="line"> */</div><div class="line"> <span class="keyword">private</span> <span class="keyword">static</span> <span class="class"><span class="keyword">class</span> <span class="title">LazyHolder</span> </span>{</div><div class="line"> <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> JschUtil INSTANCE = <span class="keyword">new</span> JschUtil();</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">private</span> <span class="title">JschUtil</span><span class="params">()</span> </span>{</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 获取实例</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> JschUtil <span class="title">getInstance</span><span class="params">()</span> </span>{</div><div class="line"> <span class="keyword">return</span> LazyHolder.INSTANCE;</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 连接到指定的服务器</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> * <span class="doctag">@throws</span> JSchException</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">boolean</span> <span class="title">connect</span><span class="params">()</span> <span class="keyword">throws</span> JSchException </span>{</div><div class="line"></div><div class="line"> jsch = <span class="keyword">new</span> JSch();<span class="comment">// 创建JSch对象</span></div><div class="line"></div><div class="line"> <span class="keyword">boolean</span> result = <span class="keyword">false</span>;</div><div class="line"></div><div class="line"> <span class="keyword">try</span>{</div><div class="line"></div><div class="line"> <span class="keyword">long</span> begin = System.currentTimeMillis();<span class="comment">//连接前时间</span></div><div class="line"> logger.debug(<span class="string">"Try to connect to jschHost = "</span> + jschHost + <span class="string">",as jschUserName = "</span> + jschUserName + <span class="string">",as jschPort = "</span> + jschPort);</div><div class="line"></div><div class="line"> session = jsch.getSession(jschUserName, jschHost, jschPort);<span class="comment">// // 根据用户名，主机ip，端口获取一个Session对象</span></div><div class="line"> session.setPassword(jschPassWord); <span class="comment">// 设置密码</span></div><div class="line"> Properties config = <span class="keyword">new</span> Properties();</div><div class="line"> config.put(<span class="string">"StrictHostKeyChecking"</span>, <span class="string">"no"</span>);</div><div class="line"> session.setConfig(config);<span class="comment">// 为Session对象设置properties</span></div><div class="line"> session.setTimeout(jschTimeOut);<span class="comment">//设置连接超时时间</span></div><div class="line"> session.connect();</div><div class="line"></div><div class="line"> logger.debug(<span class="string">"Connected successfully to jschHost = "</span> + jschHost + <span class="string">",as jschUserName = "</span> + jschUserName + <span class="string">",as jschPort = "</span> + jschPort);</div><div class="line"></div><div class="line"> <span class="keyword">long</span> end = System.currentTimeMillis();<span class="comment">//连接后时间</span></div><div class="line"></div><div class="line"> logger.debug(<span class="string">"Connected To SA Successful in {} ms"</span>, (end-begin));</div><div class="line"></div><div class="line"> result = session.isConnected();</div><div class="line"></div><div class="line"> }<span class="keyword">catch</span>(Exception e){</div><div class="line"> logger.error(e.getMessage(), e);</div><div class="line"> }<span class="keyword">finally</span>{</div><div class="line"> <span class="keyword">if</span>(result){</div><div class="line"> logger.debug(<span class="string">"connect success"</span>);</div><div class="line"> }<span class="keyword">else</span>{</div><div class="line"> logger.debug(<span class="string">"connect failure"</span>);</div><div class="line"> }</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="keyword">if</span>(!session.isConnected()) {</div><div class="line"> logger.error(<span class="string">"获取连接失败"</span>);</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="keyword">return</span> session.isConnected();</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 关闭连接</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">close</span><span class="params">()</span> </span>{</div><div class="line"></div><div class="line"> <span class="keyword">if</span>(channel != <span class="keyword">null</span> && channel.isConnected()){</div><div class="line"> channel.disconnect();</div><div class="line"> channel=<span class="keyword">null</span>;</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="keyword">if</span>(session!=<span class="keyword">null</span> && session.isConnected()){</div><div class="line"> session.disconnect();</div><div class="line"> session=<span class="keyword">null</span>;</div><div class="line"> }</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 脚本是同步执行的方式</div><div class="line"> * 执行脚本命令</div><div class="line"> * <span class="doctag">@param</span> command</div><div class="line"> * <span class="doctag">@return</span></div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> Map<String,Object> <span class="title">execCmmmand</span><span class="params">(String command)</span> <span class="keyword">throws</span> Exception</span>{</div><div class="line"></div><div class="line"></div><div class="line"> Map<String,Object> mapResult = <span class="keyword">new</span> HashMap<String,Object>();</div><div class="line"></div><div class="line"> logger.debug(command);</div><div class="line"></div><div class="line"> StringBuffer result = <span class="keyword">new</span> StringBuffer();<span class="comment">//脚本返回结果</span></div><div class="line"></div><div class="line"> BufferedReader reader = <span class="keyword">null</span>;</div><div class="line"> <span class="keyword">int</span> returnCode = -<span class="number">2</span>;<span class="comment">//脚本执行退出状态码</span></div><div class="line"></div><div class="line"></div><div class="line"> <span class="keyword">try</span> {</div><div class="line"></div><div class="line"> channel = session.openChannel(<span class="string">"exec"</span>);</div><div class="line"> ((ChannelExec) channel).setCommand(command);</div><div class="line"> channel.setInputStream(<span class="keyword">null</span>);</div><div class="line"> ((ChannelExec) channel).setErrStream(System.err);</div><div class="line"></div><div class="line"> channel.connect();<span class="comment">//执行命令 等待执行结束</span></div><div class="line"></div><div class="line"> InputStream in = channel.getInputStream();</div><div class="line"> reader = <span class="keyword">new</span> BufferedReader(<span class="keyword">new</span> InputStreamReader(in, Charset.forName(charset)));</div><div class="line"></div><div class="line"> String res=<span class="string">""</span>;</div><div class="line"> <span class="keyword">while</span>((res=reader.readLine()) != <span class="keyword">null</span>){</div><div class="line"> result.append(res+<span class="string">"\n"</span>);</div><div class="line"> logger.debug(res);</div><div class="line"> }</div><div class="line"></div><div class="line"> returnCode = channel.getExitStatus();</div><div class="line"></div><div class="line"> mapResult.put(<span class="string">"returnCode"</span>,returnCode);</div><div class="line"> mapResult.put(<span class="string">"result"</span>,result.toString());</div><div class="line"></div><div class="line"> } <span class="keyword">catch</span> (IOException e) {</div><div class="line"></div><div class="line"> logger.error(e.getMessage(),e);</div><div class="line"></div><div class="line"> } <span class="keyword">catch</span> (JSchException e) {</div><div class="line"></div><div class="line"> logger.error(e.getMessage(), e);</div><div class="line"></div><div class="line"> } <span class="keyword">finally</span> {</div><div class="line"> <span class="keyword">try</span> {</div><div class="line"> reader.close();</div><div class="line"> } <span class="keyword">catch</span> (IOException e) {</div><div class="line"> logger.error(e.getMessage(), e);</div><div class="line"> }</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="keyword">return</span> mapResult;</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 上传文件</div><div class="line"> *</div><div class="line"> * <span class="doctag">@param</span> directory 上传的目录,有两种写法</div><div class="line"> * １、如/opt，拿到则是默认文件名</div><div class="line"> * ２、/opt/文件名，则是另起一个名字</div><div class="line"> * <span class="doctag">@param</span> uploadFile 要上传的文件 如/opt/xxx.txt</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">upload</span><span class="params">(String directory, String uploadFile)</span> </span>{</div><div class="line"></div><div class="line"> <span class="keyword">try</span> {</div><div class="line"></div><div class="line"> logger.debug(<span class="string">"Opening Channel."</span>);</div><div class="line"> channel = session.openChannel(<span class="string">"sftp"</span>); <span class="comment">// 打开SFTP通道</span></div><div class="line"> channel.connect(); <span class="comment">// 建立SFTP通道的连接</span></div><div class="line"> chSftp = (ChannelSftp) channel;</div><div class="line"> File file = <span class="keyword">new</span> File(uploadFile);</div><div class="line"> <span class="keyword">long</span> fileSize = file.length();</div><div class="line"></div><div class="line"> <span class="comment">/*方法一*/</span></div><div class="line"> OutputStream out = chSftp.put(directory, <span class="keyword">new</span> FileProgressMonitor(fileSize), ChannelSftp.OVERWRITE); <span class="comment">// 使用OVERWRITE模式</span></div><div class="line"> <span class="keyword">byte</span>[] buff = <span class="keyword">new</span> <span class="keyword">byte</span>[<span class="number">1024</span> * <span class="number">256</span>]; <span class="comment">// 设定每次传输的数据块大小为256KB</span></div><div class="line"> <span class="keyword">int</span> read;</div><div class="line"> <span class="keyword">if</span> (out != <span class="keyword">null</span>) {</div><div class="line"> logger.debug(<span class="string">"Start to read input stream"</span>);</div><div class="line"> InputStream is = <span class="keyword">new</span> FileInputStream(uploadFile);</div><div class="line"> <span class="keyword">do</span> {</div><div class="line"> read = is.read(buff, <span class="number">0</span>, buff.length);</div><div class="line"> <span class="keyword">if</span> (read > <span class="number">0</span>) {</div><div class="line"> out.write(buff, <span class="number">0</span>, read);</div><div class="line"> }</div><div class="line"> out.flush();</div><div class="line"> } <span class="keyword">while</span> (read >= <span class="number">0</span>);</div><div class="line"> logger.debug(<span class="string">"input stream read done."</span>);</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">// chSftp.put(uploadFile, directory, new FileProgressMonitor(fileSize), ChannelSftp.OVERWRITE); //方法二</span></div><div class="line"> <span class="comment">// chSftp.put(new FileInputStream(src), dst, new FileProgressMonitor(fileSize), ChannelSftp.OVERWRITE); //方法三</span></div><div class="line"> logger.debug(<span class="string">"成功上传文件至"</span>+directory);</div><div class="line"></div><div class="line"> } <span class="keyword">catch</span> (Exception e) {</div><div class="line"> e.printStackTrace();</div><div class="line"> }<span class="keyword">finally</span> {</div><div class="line"> chSftp.quit();</div><div class="line"></div><div class="line"> <span class="keyword">if</span> (channel != <span class="keyword">null</span>) {</div><div class="line"> channel.disconnect();</div><div class="line"> logger.debug(<span class="string">"channel disconnect"</span>);</div><div class="line"> }</div><div class="line"></div><div class="line"> }</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 下载文件</div><div class="line"> *</div><div class="line"> * <span class="doctag">@param</span> directory 下载的目录,有两种写法</div><div class="line"> * １、如/opt，拿到则是默认文件名</div><div class="line"> * ２、/opt/文件名，则是另起一个名字</div><div class="line"> * <span class="doctag">@param</span> downloadFile 要下载的文件 如/opt/xxx.txt</div><div class="line"> *</div><div class="line"> */</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">download</span><span class="params">(String directory, String downloadFile)</span> </span>{</div><div class="line"> <span class="keyword">try</span> {</div><div class="line"></div><div class="line"> logger.debug(<span class="string">"Opening Channel."</span>);</div><div class="line"> channel = session.openChannel(<span class="string">"sftp"</span>); <span class="comment">// 打开SFTP通道</span></div><div class="line"> channel.connect(); <span class="comment">// 建立SFTP通道的连接</span></div><div class="line"> chSftp = (ChannelSftp) channel;</div><div class="line"> SftpATTRS attr = chSftp.stat(downloadFile);</div><div class="line"> <span class="keyword">long</span> fileSize = attr.getSize();</div><div class="line"></div><div class="line"></div><div class="line"> OutputStream out = <span class="keyword">new</span> FileOutputStream(directory);</div><div class="line"></div><div class="line"> InputStream is = chSftp.get(downloadFile, <span class="keyword">new</span> MyProgressMonitor());</div><div class="line"> <span class="keyword">byte</span>[] buff = <span class="keyword">new</span> <span class="keyword">byte</span>[<span class="number">1024</span> * <span class="number">2</span>];</div><div class="line"> <span class="keyword">int</span> read;</div><div class="line"> <span class="keyword">if</span> (is != <span class="keyword">null</span>) {</div><div class="line"> logger.debug(<span class="string">"Start to read input stream"</span>);</div><div class="line"> <span class="keyword">do</span> {</div><div class="line"> read = is.read(buff, <span class="number">0</span>, buff.length);</div><div class="line"> <span class="keyword">if</span> (read > <span class="number">0</span>) {</div><div class="line"> out.write(buff, <span class="number">0</span>, read);</div><div class="line"> }</div><div class="line"> out.flush();</div><div class="line"> } <span class="keyword">while</span> (read >= <span class="number">0</span>);</div><div class="line"> logger.debug(<span class="string">"input stream read done."</span>);</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">//chSftp.get(downloadFile, directory, new FileProgressMonitor(fileSize)); // 代码段1</span></div><div class="line"> <span class="comment">//chSftp.get(downloadFile, out, new FileProgressMonitor(fileSize)); // 代码段2</span></div><div class="line"></div><div class="line"> logger.debug(<span class="string">"成功下载文件至"</span>+directory);</div><div class="line"> } <span class="keyword">catch</span> (Exception e) {</div><div class="line"> e.printStackTrace();</div><div class="line"> } <span class="keyword">finally</span> {</div><div class="line"> chSftp.quit();</div><div class="line"> <span class="keyword">if</span> (channel != <span class="keyword">null</span>) {</div><div class="line"> channel.disconnect();</div><div class="line"> logger.debug(<span class="string">"channel disconnect"</span>);</div><div class="line"> }</div><div class="line"> }</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 删除文件</div><div class="line"> * <span class="doctag">@param</span> deleteFile 要删除的文件</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">delete</span><span class="params">(String deleteFile)</span> </span>{</div><div class="line"></div><div class="line"> <span class="keyword">try</span> {</div><div class="line"> connect();<span class="comment">//建立服务器连接</span></div><div class="line"> logger.debug(<span class="string">"Opening Channel."</span>);</div><div class="line"> channel = session.openChannel(<span class="string">"sftp"</span>); <span class="comment">// 打开SFTP通道</span></div><div class="line"> channel.connect(); <span class="comment">// 建立SFTP通道的连接</span></div><div class="line"> chSftp = (ChannelSftp) channel;</div><div class="line"> chSftp.rm(deleteFile);</div><div class="line"> logger.debug(<span class="string">"成功删除文件"</span>+deleteFile);</div><div class="line"> } <span class="keyword">catch</span> (Exception e) {</div><div class="line"> e.printStackTrace();</div><div class="line"> }</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> String <span class="title">getCharset</span><span class="params">()</span> </span>{</div><div class="line"> <span class="keyword">return</span> charset;</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">setCharset</span><span class="params">(String charset)</span> </span>{</div><div class="line"> <span class="keyword">this</span>.charset = charset;</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">main</span><span class="params">(String[] args)</span> <span class="keyword">throws</span> Exception</span>{</div><div class="line"></div><div class="line"> JschUtil jschUtil = JschUtil.getInstance();</div><div class="line"></div><div class="line"> <span class="keyword">boolean</span> isConnected = <span class="keyword">false</span>;</div><div class="line"> isConnected = jschUtil.connect();</div><div class="line"></div><div class="line"> <span class="keyword">if</span>(isConnected == <span class="keyword">true</span>){</div><div class="line"></div><div class="line"></div><div class="line"> <span class="comment">/*上传文件*/</span></div><div class="line"> jschUtil.upload(<span class="string">"/opt/123456.png"</span>,<span class="string">"/home/sky/Desktop/resizeApi.png"</span>);</div><div class="line"></div><div class="line"> <span class="comment">/*执行命令*/</span></div><div class="line"> String command = <span class="string">"ls -ltr /opt"</span>;</div><div class="line"> <span class="comment">// String command = ShellConfigUtil.getShell("ls");</span></div><div class="line"> Map<String,Object> result = jschUtil.execCmmmand(command);</div><div class="line"> System.out.println(result.get(<span class="string">"result"</span>).toString());</div><div class="line"></div><div class="line"> <span class="comment">/*下载文件*/</span></div><div class="line"> jschUtil.download(<span class="string">"/opt/123456.png"</span>,<span class="string">"/opt/123456.png"</span>);</div><div class="line"></div><div class="line"> jschUtil.close();</div><div class="line"></div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"> }</div><div class="line">}</div></pre></td></tr></table></figure>
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class="keyword">import</span> java.util.Timer;</div><div class="line"><span class="keyword">import</span> java.util.TimerTask;</div><div class="line"></div><div class="line"><span class="keyword">import</span> com.jcraft.jsch.SftpProgressMonitor;</div><div class="line"><span class="keyword">import</span> org.slf4j.Logger;</div><div class="line"><span class="keyword">import</span> org.slf4j.LoggerFactory;</div><div class="line"></div><div class="line"><span class="comment">/**</span></div><div class="line"> * 注释</div><div class="line"> *</div><div class="line"> * <span class="doctag">@Author</span>： coding99</div><div class="line"> * <span class="doctag">@Date</span>： 16-9-2</div><div class="line"> * <span class="doctag">@Time</span>： 下午8:29</div><div class="line"> */</div><div class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">FileProgressMonitor</span> <span class="keyword">extends</span> <span class="title">TimerTask</span> <span class="keyword">implements</span> <span class="title">SftpProgressMonitor</span> </span>{</div><div class="line"></div><div class="line"> <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> Logger logger = LoggerFactory.getLogger(FileProgressMonitor.class);</div><div class="line"> </div><div class="line"></div><div class="line"> <span class="keyword">private</span> <span class="keyword">long</span> progressInterval = <span class="number">5</span> * <span class="number">1000</span>; <span class="comment">// 默认间隔时间为5秒</span></div><div class="line"></div><div class="line"> <span class="keyword">private</span> <span class="keyword">boolean</span> isEnd = <span class="keyword">false</span>; <span class="comment">// 记录传输是否结束</span></div><div class="line"></div><div class="line"> <span class="keyword">private</span> <span class="keyword">long</span> transfered; <span class="comment">// 记录已传输的数据总大小</span></div><div class="line"></div><div class="line"> <span class="keyword">private</span> <span class="keyword">long</span> fileSize; <span class="comment">// 记录文件总大小</span></div><div class="line"></div><div class="line"> <span class="keyword">private</span> Timer timer; <span class="comment">// 定时器对象</span></div><div class="line"></div><div class="line"> <span class="keyword">private</span> <span class="keyword">boolean</span> isScheduled = <span class="keyword">false</span>; <span class="comment">// 记录是否已启动timer记时器</span></div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="title">FileProgressMonitor</span><span class="params">(<span class="keyword">long</span> fileSize)</span> </span>{</div><div class="line"> <span class="keyword">this</span>.fileSize = fileSize;</div><div class="line"> }</div><div class="line"> </div><div class="line"> <span class="meta">@Override</span></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">run</span><span class="params">()</span> </span>{</div><div class="line"></div><div class="line"> <span class="keyword">if</span> (!isEnd()) { <span class="comment">// 判断传输是否已结束</span></div><div class="line"></div><div class="line"> logger.debug(<span class="string">"Transfering is in progress."</span>);</div><div class="line"></div><div class="line"> <span class="keyword">long</span> transfered = getTransfered();</div><div class="line"></div><div class="line"> <span class="keyword">if</span> (transfered != fileSize) { <span class="comment">// 判断当前已传输数据大小是否等于文件总大小</span></div><div class="line"> logger.debug(<span class="string">"Current transfered: "</span> + transfered + <span class="string">" bytes"</span>);</div><div class="line"> sendProgressMessage(transfered);</div><div class="line"> } <span class="keyword">else</span> {</div><div class="line"> logger.debug(<span class="string">"File transfering is done."</span>);</div><div class="line"> setEnd(<span class="keyword">true</span>); <span class="comment">// 如果当前已传输数据大小等于文件总大小，说明已完成，设置end</span></div><div class="line"> }</div><div class="line"> } <span class="keyword">else</span> {</div><div class="line"> logger.debug(<span class="string">"Transfering done. Cancel timer."</span>);</div><div class="line"> stop(); <span class="comment">// 如果传输结束，停止timer记时器</span></div><div class="line"> <span class="keyword">return</span>;</div><div class="line"> }</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">stop</span><span class="params">()</span> </span>{</div><div class="line"> logger.debug(<span class="string">"Try to stop progress monitor."</span>);</div><div class="line"> <span class="keyword">if</span> (timer != <span class="keyword">null</span>) {</div><div class="line"> timer.cancel();</div><div class="line"> timer.purge();</div><div class="line"> timer = <span class="keyword">null</span>;</div><div class="line"> isScheduled = <span class="keyword">false</span>;</div><div class="line"> }</div><div class="line"> logger.debug(<span class="string">"Progress monitor stoped."</span>);</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">start</span><span class="params">()</span> </span>{</div><div class="line"> logger.debug(<span class="string">"Try to start progress monitor."</span>);</div><div class="line"> <span class="keyword">if</span> (timer == <span class="keyword">null</span>) {</div><div class="line"> timer = <span class="keyword">new</span> Timer();</div><div class="line"> }</div><div class="line"> timer.schedule(<span class="keyword">this</span>, <span class="number">1000</span>, progressInterval);</div><div class="line"> isScheduled = <span class="keyword">true</span>;</div><div class="line"> logger.debug(<span class="string">"Progress monitor started."</span>);</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 打印progress信息</div><div class="line"> * <span class="doctag">@param</span> transfered</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">private</span> <span class="keyword">void</span> <span class="title">sendProgressMessage</span><span class="params">(<span class="keyword">long</span> transfered)</span> </span>{</div><div class="line"> <span class="keyword">if</span> (fileSize != <span class="number">0</span>) {</div><div class="line"> <span class="keyword">double</span> d = ((<span class="keyword">double</span>)transfered * <span class="number">100</span>)/(<span class="keyword">double</span>)fileSize;</div><div class="line"> DecimalFormat df = <span class="keyword">new</span> DecimalFormat( <span class="string">"#.##"</span>);</div><div class="line"> logger.debug(<span class="string">"Sending progress message: "</span> + df.format(d) + <span class="string">"%"</span>);</div><div class="line"> } <span class="keyword">else</span> {</div><div class="line"> logger.debug(<span class="string">"Sending progress message: "</span> + transfered);</div><div class="line"> }</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 实现了SftpProgressMonitor接口的count方法</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">boolean</span> <span class="title">count</span><span class="params">(<span class="keyword">long</span> count)</span> </span>{</div><div class="line"> <span class="keyword">if</span> (isEnd()) <span class="keyword">return</span> <span class="keyword">false</span>;</div><div class="line"> <span class="keyword">if</span> (!isScheduled) {</div><div class="line"> start();</div><div class="line"> }</div><div class="line"> add(count);</div><div class="line"> <span class="keyword">return</span> <span class="keyword">true</span>;</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">/**</span></div><div class="line"> * 实现了SftpProgressMonitor接口的end方法</div><div class="line"> */</div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">end</span><span class="params">()</span> </span>{</div><div class="line"> setEnd(<span class="keyword">true</span>);</div><div class="line"> logger.debug(<span class="string">"transfering end."</span>);</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">private</span> <span class="keyword">synchronized</span> <span class="keyword">void</span> <span class="title">add</span><span class="params">(<span class="keyword">long</span> count)</span> </span>{</div><div class="line"> transfered = transfered + count;</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">private</span> <span class="keyword">synchronized</span> <span class="keyword">long</span> <span class="title">getTransfered</span><span class="params">()</span> </span>{</div><div class="line"> <span class="keyword">return</span> transfered;</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">synchronized</span> <span class="keyword">void</span> <span class="title">setTransfered</span><span class="params">(<span class="keyword">long</span> transfered)</span> </span>{</div><div class="line"> <span class="keyword">this</span>.transfered = transfered;</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">private</span> <span class="keyword">synchronized</span> <span class="keyword">void</span> <span class="title">setEnd</span><span class="params">(<span class="keyword">boolean</span> isEnd)</span> </span>{</div><div class="line"> <span class="keyword">this</span>.isEnd = isEnd;</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">private</span> <span class="keyword">synchronized</span> <span class="keyword">boolean</span> <span class="title">isEnd</span><span class="params">()</span> </span>{</div><div class="line"> <span class="keyword">return</span> isEnd;</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">init</span><span class="params">(<span class="keyword">int</span> op, String src, String dest, <span class="keyword">long</span> max)</span> </span>{</div><div class="line"> <span class="comment">// Not used for putting InputStream</span></div><div class="line"> }</div><div class="line">}</div></pre></td></tr></table></figure>
<figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div><div class="line">33</div><div class="line">34</div><div class="line">35</div><div class="line">36</div><div class="line">37</div><div class="line">38</div><div class="line">39</div><div class="line">40</div><div class="line">41</div><div class="line">42</div><div class="line">43</div><div class="line">44</div><div class="line">45</div><div class="line">46</div><div class="line">47</div><div class="line">48</div><div class="line">49</div></pre></td><td class="code"><pre><div class="line"><span class="keyword">package</span> com.personal.core.utils;</div><div class="line"></div><div class="line"></div><div class="line"><span class="keyword">import</span> com.jcraft.jsch.SftpProgressMonitor;</div><div class="line"><span class="keyword">import</span> org.slf4j.Logger;</div><div class="line"><span class="keyword">import</span> org.slf4j.LoggerFactory;</div><div class="line"></div><div class="line"></div><div class="line"></div><div class="line"></div><div class="line"><span class="comment">/**</span></div><div class="line"> * 注释</div><div class="line"> *</div><div class="line"> * <span class="doctag">@Author</span>： coding99</div><div class="line"> * <span class="doctag">@Date</span>： 16-9-2</div><div class="line"> * <span class="doctag">@Time</span>： 下午8:36</div><div class="line"> */</div><div class="line"></div><div class="line"></div><div class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">MyProgressMonitor</span> <span class="keyword">implements</span> <span class="title">SftpProgressMonitor</span> </span>{</div><div class="line"></div><div class="line"></div><div class="line"> <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> Logger logger = LoggerFactory.getLogger(MyProgressMonitor.class);</div><div class="line"></div><div class="line"></div><div class="line"> <span class="keyword">private</span> <span class="keyword">long</span> transfered;</div><div class="line"></div><div class="line"></div><div class="line"> <span class="meta">@Override</span></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">boolean</span> <span class="title">count</span><span class="params">(<span class="keyword">long</span> count)</span> </span>{</div><div class="line"> transfered = transfered + count;</div><div class="line"> logger.debug(<span class="string">"Currently transferred total size: "</span> + transfered + <span class="string">" bytes"</span>);</div><div class="line"> <span class="keyword">return</span> <span class="keyword">true</span>;</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"> <span class="meta">@Override</span></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">end</span><span class="params">()</span> </span>{</div><div class="line"> logger.debug(<span class="string">"Transferring done."</span>);</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line"> <span class="meta">@Override</span></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">init</span><span class="params">(<span class="keyword">int</span> op, String src, String dest, <span class="keyword">long</span> max)</span> </span>{</div><div class="line"> logger.debug(<span class="string">"Transferring begin."</span>);</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line">}</div></pre></td></tr></table></figure>
<p>#注：工具类主要封装了三个方法 </p>
<p>1.执行脚本命令<br>2.文件上传(为了做进度监控，需要用到监控类FileProgressMonitor.java)<br>3.文件下载 (为了做进度监控，需要用到监控类MyProgressMonitor.java) </p>
<p>JschUtil.java工具类的几个使用步骤如下<br>1.初始化连接参数<br>2.调用connect()方法进行连接<br>3.执行相应的方法，如果是脚本命令，先用ShellConfigUtil.java获取相应的脚本，再执行（jsch执行脚本的方式是同步，就是要等到脚本执行结束才返回结果，如果没有返回就一直等着，应该不支持交互式命令，比如连接到某个数据库，然后执行相应的操作）<br>4.最后关闭连接</p>
<p>例子只针对单台服务器的操作，如果需要同时操作多台服务器，可在原有基础上做修改。</p>
]]></content>
<summary type="html">
<h2 id="jsch教程"><a href="#jsch教程" class="headerlink" title="jsch教程"></a>jsch教程</h2><blockquote>
<p>jsch是ssh2的一个纯Java实现。它允许你连接到一个sshd服务器，使用端口转发，X11转发，文件传输等等。你可以将它的功能集成到你自己的程序中。同时该项目也提供一个J2ME版本用来在手机上直连SSHD服务器。</p>
</blockquote>
<p>####一般连接到服务器有两种方式:<br>1、通过用户名和密码连接，缺点（出于安全需要，一般服务器的密码会定期修改，程序部署后将不得不经常更新配置文件中的密 码。）<br>2、通过用户名和ssh private key file连接，缺点(因为Java程序必须和private key file在同一台机器上，将服务器的private key file复制到本地后，本地机器的安全措施可能会使private key file被窃取，威胁服务器安全。)</p>
<hr>
<p>jsch官网地址为<a href="http://www.jcraft.com/jsch/">http://www.jcraft.com/jsch/</a>,实现jsch功能需要添加一个jsch-0.1.51.jar包，官网有一些例子可直接下载参考。</p>
</summary>
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<category term="Jsch" scheme="http://bee.gs/tags/Jsch/"/>
<category term="教程" scheme="http://bee.gs/tags/%E6%95%99%E7%A8%8B/"/>
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