package com.core;

public class ChStr {

public static String toChinese(String strvalue) {

try {

if (strvalue == null) { //当变量strvalue为null时

strvalue=""; //将变量strvalue赋值为空

} else {

strvalue = new String(strvalue.getBytes("ISO8859_1"), "GBK"); //将字符串转换为GBK编码

strvalue = strvalue.trim(); //去除字符串的首尾空格

}

} catch (Exception e) {

strvalue=""; //将变量strvalue赋值为空

}

return strvalue; //返回转换后的输入变量strvalue

}

// 处理字符串中的空值

public static final String nullToString(String v, String toV) {

if (v == null || "".equals(v)) { //当输入变量v为空时

v = toV; //将输入变量v赋值为输入变量toV

}

return v; //返回转换后的输入变量v

}

//过滤危险字符

public static final String filterStr(String str){

str=str.replaceAll(";","");

str=str.replaceAll("&","&");

str=str.replaceAll("<","&lt;");

str=str.replaceAll(">","&gt;");

str=str.replaceAll("'","");

str=str.replaceAll("--"," ");

str=str.replaceAll("/","");

str=str.replaceAll("%","");

return str;

}

}