Java+JQuery Ajax 实例

目录

jsp:

    <%@ 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="Servlet" 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:

    package cn.notemi;

    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 {

    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");
        }
    }

文章最后编辑时间为:2016-11-16 23:46:13

标签: java jquery

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