struts 2.1.6 中文乱码处理

1.WEBÌí¼Ó¹ýÂËÆ÷

<filter>  
     <filter-name>EncodingFilter</filter-name>  
     <filter-class>com.test.util.EncodingFilter</filter-class>     
     <init-param>  
        <param-name>encoding</param-name>  
        <param-value>utf-8</param-value>  
      </init-param>  
  </filter>  
  <filter-mapping>  
     <filter-name>EncodingFilter</filter-name>  
     <url-pattern>/*</url-pattern>  
  </filter-mapping>

2.¹ýÂËÆ÷ 
package com.test.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;