Servlet/JSP乱码

JSP代码

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>测试服务器返回中文乱码</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
  </head>
  
  <body>
    <form action="solveMessyCode" method="post">
        <input name="parm" id="parm" type="text" width="120" /><br />
        <input type="submit" value=" 提交 " />
    </form>
  </body>
</html>

web.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
    xmlns="http://java.sun.com/xml/ns/javaee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  <display-name></display-name>    
  
  <servlet>
      <servlet-name>solveJSPMessageCode</servlet-name>
      <servlet-class>com.slt.servlet.SolveJSPMessyCodeServlet</servlet-class>
  </servlet>
  
  <servlet-mapping>
      <servlet-name>solveJSPMessageCode</servlet-name>
      <url-pattern>/solveMessyCode</url-pattern>
  </servlet-mapping>
  
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

Servlet类

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class SolveJSPMessyCodeServlet extends HttpServlet {

    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doPost(request,response);
    }
    
    
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        request.setCharacterEncoding("UTF-8");
        String parm = request.getParameter("parm");
        System.out.println("页面传来的参数：" + parm);
        String result = "返回的参数:" + parm;
        response.setContentType("text/html;charset=utf-8");
        response.getWriter().println(result);
    }
}

注意：也可以使用Filter，道理是一样的。

posted @ 2012-04-17 10:17  tovep  阅读(170)  评论(0)  编辑  收藏  举报