有三种方法：

   1.建立一个filter中文解决乱码

   2.Struts2在struts.xml中修改默认的编码设定

   3.用Spring解决中文乱码

   4.直接在jsp中修改解决

 

   1.建立一个filter解决乱码

1)建立一个filter类src/util/SetCharacterEncodingFilter.java

package 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;import javax.servlet.UnavailableException;     public class SetCharacterEncodingFilter implements Filter {

public void destroy() {    }       public void doFilter(ServletRequest request, ServletResponse response,    FilterChain chain)throws IOException, ServletException {

//设置编码

request.setCharacterEncoding("gb2312");    // 传递控制到下一个过滤器    chain.doFilter(request, response);    }    public void init(FilterConfig filterConfig) throws ServletException {    }}

 

2.修改web.xml,添加filter和filter-mapping(在struts的FilterDispatcher映射之前添加)

             
      
       Set Character Encoding
               
      
       util.SetCharacterEncodingFilter
           
          
              
      
       Set Character Encoding
              
      
       /*
           
             web-app>

 

 

   2.Struts2在struts.xml中修改默认编码(Struts2_2.16以上)

 

 

   3.用Spring解决中文乱码

修改web.xml,添加filter和filter-mapping(在struts的FilterDispatcher映射之前添加)

             
      
       encodingFilter
              
      
       org.springframework.web.filter.CharacterEncodingFilter
              
                  
       
        encoding
                   
       
        GBK
               
          
             
             
      
       encodingFilter
              
      
       /*
          
     

 

 

 

   4.直接在jsp中修改解决

<%@ page contentType="text/html; charset=gb2312"%>    
     <%   String s=new String(request.getParameter("name").getBytes("ISO-8859-1"),"gb2312") ;   out.print(s);%>