forked from maxliaops/Java_Web_Examples
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathDbnews.java
More file actions
313 lines (295 loc) · 7.8 KB
/
Dbnews.java
File metadata and controls
313 lines (295 loc) · 7.8 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
package electric.dbs;
import java.sql.*;
import javax.servlet.http.*;
import electric.*;
import java.text.SimpleDateFormat;
import electric.electricUtils.*;
public class Dbnews{
private static final String LOAD_NEWS_BY_ID =
"SELECT * FROM [NEWS] WHERE [ID]=?";
private static final String INSERT_NEWS =
"INSERT INTO [NEWS] ([Id],[Motif],[Kithepeople],[Content],[Createdate],[Createpeople],[Status]) VALUES " +
"(?,?,?,?,?,?,?)";
private static final String UPDATE_NEWS =
"UPDATE [NEWS] SET [Motif]=?,[Kithepeople]=?,[Content]=?,[Createdate]=?," +
"[Createpeople]=?,[Status]=?" +
" WHERE [Id]=?";
private static final String DEL_NEWS =
"UPDATE [NEWS] SET [Status]=? WHERE [Id]=?";
private static final String CLEAR_NEWS = "DELETE FROM [NEWS] WHERE STATUS=" +
FinalConstants.STATUS_DELETE;
private int Id;
private String Motif;
private String Kithepeople;
private String Content;
private String CreateDate;
private int Createpeople;
private int Status;
public Dbnews()
{}
public Dbnews(HttpServletRequest request) {
this.Id = DbSequenceManager.nextID(FinalConstants.T_NEWS);
this.Motif = ParamUtils.getEscapeHTMLParameter(request, "motif");
this.Kithepeople = ParamUtils.getEscapeHTMLParameter(request, "kithepeople");
this.Content = ParamUtils.getEscapeHTMLParameter(request, "content");
SimpleDateFormat simpleDate = new SimpleDateFormat("yyyyMMdd");
String shiftDateToDate = simpleDate.format(new java.util.Date());
this.CreateDate = shiftDateToDate;
this.Createpeople = this.Id;
this.Status = FinalConstants.STATUS_NORMAL;
insertIntoDb();
}
public Dbnews(int Id) throws NewsNotFoundException {
this.Id = Id;
if (Id <= 0) {
return;
}
loadFromDb();
}
protected static Dbnews getInstance(int Id) throws
NewsNotFoundException {
return new Dbnews(Id);
}
protected void delete() {
setStatus(FinalConstants.STATUS_DELETE);
}
protected static void clear() {
Connection con = null;
PreparedStatement pstmt = null;
try {
con = DbConnectionManager.getConnection();
pstmt = con.prepareStatement(CLEAR_NEWS);
pstmt.executeUpdate();
}
catch (SQLException sqle) {
System.err.println(
"SQLException in DbTChatRooms.java:clearTChatRooms(): " + sqle);
sqle.printStackTrace();
}
finally {
try {
pstmt.close();
}
catch (Exception e) {
e.printStackTrace();
}
try {
con.close();
}
catch (Exception e) {
e.printStackTrace();
}
}
}
/////////////////////////////////////////////////////////////////
public int getId() {
return this.Id;
}
public String getMotif()
{
return this.Motif;
}
public String getKithepeople()
{
return this.Kithepeople;
}
public String getContent()
{
return this.Content;
}
public String getCreateDate()
{
return this.CreateDate;
}
public int getCreatepeople()
{
return this.Createpeople;
}
public int getStatus()
{
return this.Status;
}
//////////////////////WRITE METHODS/////////////////////////////
/////////////////////////////////////////////////////////////////
public void setId(int Id) {
this.Id=Id;
saveToDb();
}
public void setMotif(String Motif)
{
this.Motif=Motif;
saveToDb();
}
public void setKithepeople(String Kithepeople)
{
this.Kithepeople=Kithepeople;
saveToDb();
}
public void setContent(String Content)
{
this.Content=Content;
saveToDb();
}
public void setCreateDate(String CreateDate)
{
this.CreateDate=CreateDate;
saveToDb();
}
public void setCreatepeople(int Createpeople)
{
this.Createpeople=Createpeople;
saveToDb();
}
public void setStatus(int Status)
{
this.Status=Status;
DELToDb();
}
////////////////////////////////////////////////////////////////////////////////
public void modify(HttpServletRequest request) {
this.Id = ParamUtils.getIntParameter(request, "Id");
this.Motif = ParamUtils.getEscapeHTMLParameter(request, "Motif");
this.Kithepeople = ParamUtils.getEscapeHTMLParameter(request, "Kithepeople");
this.Content = ParamUtils.getEscapeHTMLParameter(request, "Content");
this.Createpeople =this.Id;
this.Status = FinalConstants.STATUS_NORMAL;
saveToDb();
}
private void loadFromDb() throws NewsNotFoundException {
Connection con = null;
PreparedStatement pstmt = null;
try {
con = DbConnectionManager.getConnection();
pstmt = con.prepareStatement(LOAD_NEWS_BY_ID);
pstmt.setInt(1,Id);
ResultSet rs = pstmt.executeQuery();
if (!rs.next()) {
throw new NewsNotFoundException("从数据表[NEWS]中读取用户数据失败,欲读取的用户ID:[ " +
Id + "]!");
}
this.Id = rs.getInt("ID");
this.Motif = rs.getString("Motif");
this.Kithepeople = rs.getString("Kithepeople");
this.Content=rs.getString("Content");
this.CreateDate = rs.getString("CREATEDATE");
this.Createpeople = rs.getInt("CREATEPEOPLE");
this.Status = rs.getInt("STATUS");
}
catch (SQLException sqle) {
throw new NewsNotFoundException("从数据表[NEWS]中读取用户数据失败,欲读取的用户ID:[ " +
Id + "]!");
}
finally {
try {
pstmt.close();
}
catch (Exception e) {
e.printStackTrace();
}
try {
con.close();
}
catch (Exception e) {
e.printStackTrace();
}
}
}
private void insertIntoDb() {
Connection con = null;
PreparedStatement pstmt = null;
try {
con = DbConnectionManager.getConnection();
pstmt = con.prepareStatement(INSERT_NEWS);
pstmt.setInt(1, this.Id);
pstmt.setString(2,StringUtils.toChinese(this.Motif));
pstmt.setString(3, StringUtils.toChinese(this.Kithepeople));
pstmt.setString(4, StringUtils.toChinese(this.Content));
pstmt.setString(5, StringUtils.toChinese(this.CreateDate));
pstmt.setInt(6, this.Createpeople);
pstmt.setInt(7, this.Status);
pstmt.executeUpdate();
}
catch (SQLException sqle) {
System.err.println("错误位置: DbNews:insertIntoDb()-" + sqle);
sqle.printStackTrace();
}
finally {
try {
pstmt.close();
}
catch (Exception e) {
e.printStackTrace();
}
try {
con.close();
}
catch (Exception e) {
e.printStackTrace();
}
}
}
private void saveToDb() {
Connection con = null;
PreparedStatement pstmt = null;
try {
con = DbConnectionManager.getConnection();
pstmt = con.prepareStatement(UPDATE_NEWS);
pstmt.setString(1, StringUtils.toChinese(this.Motif));
pstmt.setString(2, StringUtils.toChinese(this.Kithepeople));
pstmt.setString(3, StringUtils.toChinese(this.Content));
pstmt.setString(4, StringUtils.toChinese(this.CreateDate));
pstmt.setInt(5, this.Createpeople);
pstmt.setInt(6, this.Status);
pstmt.setInt(7, this.Id);
pstmt.executeUpdate();
}
catch (SQLException sqle) {
System.err.println("错误位置: DbNews.java:saveToDb(): " + sqle);
sqle.printStackTrace();
}
finally {
try {
pstmt.close();
}
catch (Exception e) {
e.printStackTrace();
}
try {
con.close();
}
catch (Exception e) {
e.printStackTrace();
}
}
}
private void DELToDb() {
Connection con = null;
PreparedStatement pstmt = null;
try {
con = DbConnectionManager.getConnection();
pstmt = con.prepareStatement(DEL_NEWS);
System.out.println(DEL_NEWS);
pstmt.setInt(1, this.Status);
pstmt.setInt(2, this.Id);
pstmt.executeUpdate();
}
catch (SQLException sqle) {
System.err.println("错误位置: DbShop.java:DELToDb(): " + sqle);
sqle.printStackTrace();
}
finally {
try {
pstmt.close();
}
catch (Exception e) {
e.printStackTrace();
}
try {
con.close();
}
catch (Exception e) {
e.printStackTrace();
}
}
}
}