filter统一编码

package com.john.util;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class setCharactorEncoding implements Filter {

 public void destroy() {
  // TODO Auto-generated method stub

 }

 public void doFilter(ServletRequest request, ServletResponse response,
   FilterChain chain) throws IOException, ServletException {
  // TODO Auto-generated method stub
  request.setCharacterEncoding("utf-8");
  chain.doFilter(request, response);
 }

 public void init(FilterConfig arg0) throws ServletException {
  // TODO Auto-generated method stub

 }

}
========================web.xml=================================

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee   http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  <filter>
   <filter-name>setCharactorEncoding</filter-name>
   <filter-class>com.john.util.setCharactorEncoding</filter-class>
  </filter>
  <filter-mapping>
   <filter-name>setCharactorEncoding</filter-name>
   <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

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友情提示:web.xml切换到design模式.右键web-app节点.add child----context-param-login-config----filter/filter mapping