jsp 用 过滤器 解决 中文乱码 的有关问题（超简单的步骤）

jsp 用 过滤器 解决 中文乱码 的问题（超简单的步骤）
1jsp页头设置为UTF-8   如下：

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

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 SetCharacterEncodingFilter implements Filter {     private String encoding;     public void init(FilterConfig filterConfig) throws ServletException {      // TODO Auto-generated method stub      this.encoding=filterConfig.getInitParameter("encoding");     }     public void doFilter(ServletRequest request, ServletResponse response,       FilterChain chain) throws IOException, ServletException {      // TODO Auto-generated method stub      request.setCharacterEncoding(this.encoding);      response.setCharacterEncoding(this.encoding);      chain.doFilter(request,response);     }     public void destroy() {      // TODO Auto-generated method stub     }    }

 <filter>  <filter-name>SetCharacterEncodingFilter</filter-name>  <filter-class>SetCharacterEncodingFilter</filter-class>  <init-param>   <param-name>encoding</param-name>   <param-value>utf-8</param-value>  </init-param> </filter> <filter-mapping>  <filter-name>SetCharacterEncodingFilter</filter-name>  <url-pattern>/*</url-pattern> </filter-mapping>