Jsp和Servlet如何使用中文参数

首先在java中添加如下类：

 1 package com.filter;//包名
 2 
 3 import java.io.IOException;
 4 
 5 import javax.servlet.Filter;
 6 import javax.servlet.FilterChain;
 7 import javax.servlet.FilterConfig;
 8 import javax.servlet.ServletException;
 9 import javax.servlet.ServletRequest;
10 import javax.servlet.ServletResponse;
11 
12 public class EncodeFilter implements Filter{
13 
14     public void destroy() {
15         // TODO Auto-generated method stub
16         
17     }
18 
19     public void doFilter(ServletRequest req, ServletResponse res, FilterChain c) throws IOException, ServletException {
20         // TODO Auto-generated method stub
21         req.setCharacterEncoding("utf-8");
22         res.setCharacterEncoding("utf-8");
23         res.setContentType("text/html;charset=utf-8");
24         c.doFilter(req, res);
25         
26     }
27 
28     public void init(FilterConfig arg0) throws ServletException {
29         // TODO Auto-generated method stub
30         
31     }
32 
33 }

然后再在web.xml中添加一下内容：

<filter>
<filter-name>encodeFilter</filter-name>
<filter-class>com.filter.EncodeFilter</filter-class>  <!--这里写你自己的这个类的路径-->
</filter>

<filter-mapping>
    <filter-name>encodeFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>