java JQuery 实例
<%@ page language="java" contentType="text/html" pageEncoding="utf-8"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="content" content="text/html;charset=utf-8"><!--<link rel="stylesheet" type="text/css" href="styles.css">--><script type="text/javascript" src="jquery-1.3.2.js"></script><script type="text/javascript">function sub(){ $.ajax({ type:"post", //请求方式 url:"./test", //发送请求地址 data:{ //发送给数据库的数据 username:$("#username").val(), content:$("#content").val() }, //请求成功后的回调函数有两个参数 success:function(data,textStatus){ $("#resText").html(data); } }); } </script></head><body><form action="./test" id="form1" method="post"><p>评论：</p><p>姓名：<input type="text" name="username" id="username"/></p><p>内容：<textarea name="content" id="content" rows="2" cols="20"></textarea></p><p><input type="button" id="send" value="提交" onclick="sub();"/></p></form><div class="comment">已有评论：</div><div id="resText"></div></body></html>java代码package com;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class test extends HttpServlet {/*** The doPost method of the servlet. <br>** This method is called when a form has its tag value method equals to post.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //处理中文问题 request.setCharacterEncoding("utf-8"); response.setContentType("text/html;charset=utf-8"); System.out.println("start............"); String username=request.getParameter("username"); String content=request.getParameter("content"); //username=new String(username.getBytes("gb2312"),"utf-8"); PrintWriter out = response.getWriter(); out.write(username); System.out.println("username>>=="+username); out.write(content); out.flush(); out.close(); System.out.println("end");}}