提交到servlet变成乱码

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>welcome.html</title>

    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="this is my page">
    <meta http-equiv="content-type" content="text/html; charset=UTF-8">
    
    <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->  </head>
  
  <body>
    <form action="welcome" method="post"> 
    请输入用户名<input type="text" name="user"><p>
    <input type="submit" name="提交">
    </form>
  </body>
</html>
package com;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.*;
import javax.servlet.http.*;public class WelcomeYou extends HttpServlet
{
    public void doGet(HttpServletRequest req, HttpServletResponse resp)
               throws ServletException,IOException
    {
     req.setCharacterEncoding("gb2312");
    
        String user=req.getParameter("user");
        String welcomeInfo="Welcome you, "+user;
        resp.setCharacterEncoding("gb2312");
        resp.setContentType("text/html");
        
        PrintWriter out=resp.getWriter();
        
        out.println("<html><head><title>");
        out.println("Welcome Page");
        out.println("</title></head>");
        out.println("<body>");
        out.println(welcomeInfo);
        out.println("</body></html>");
        out.close();
    }
    
    public void doPost(HttpServletRequest req, HttpServletResponse resp)
               throws ServletException,IOException
    {
        doGet(req,resp);
    }
}
再MYECLIPSE中测试是乱码

解决方案 »

  1.   

    上面代码应该没问题.但你可以试一下.
    String   welcomeInfo="Welcome   you,   "+user; 
    把这里的user 去掉,尝试一下.如果还有问题,看看浏览器的编码是不是中文.你是打开所有中文都乱吗,找别的中文页试试.
      

  2.   

    req.setCharacterEncoding("UTF-8"); 
      

  3.   

    jsp文件前面加这个试试？<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>
      

  4.   

    <%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
    servlet类doGet方法中加上 response.setContentType("text/html;charset=GBK");
      

  5.   

    最好的方法就是在web.xnl中加上Filter
    <filter> 
    <filter-name> CharacterEncodingFilter </filter-name> 
    <filter-class> 
    ...CharacterEncodingFilter 
    </filter-class> 
    <init-param> 
    <param-name> encoding </param-name> 
    <param-value> GB2312 </param-value> 
    </init-param> 
    <init-param> 
    <param-name> ignore </param-name> 
    <param-value> true </param-value> 
    </init-param> 
    </filter>