Ajax在JQuery的运用（load方法练习）

1.index.html

<!DOCTYPE html>
<html>
<head>
<Meta charset="UTF-8">
<title>test load()</title>
<script type="text/javascript" src="script/jquery-3.1.1.js"></script>
<script type="text/javascript">
  $(function() {
    $("input:eq(0)").click(function() {
        $("#content").load("LoadServlet");
        //$("#content").load("LoadServlet #myli");//过滤筛选
    });
    
    $("input:eq(1)").click(function() {
        $("#content").load("LoadServlet",{'username':'Haige','age':30},function(responseText,textStatus,XMLHttpRequest){
         // alert(textStatus);//获取服务端传回数据的状态
         // alert(responseText);//服务端传回的文本数据
         // alert(XMLHttpRequest.status);//服务端传回异步处理对象
          alert(XMLHttpRequest。responseText);
        });//过滤筛选
    });
    
});
</script>
</head>
<body>
  <input type="button" value="加载get方法"/>
  <input type="button" value="加载Post方法"/>
  <div id="content"></div>
</body>
</html>

LoadServlet.java

package com.haige;

import java.io.IOException;
import java.io.PrintWriter;

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

@WebServlet("/LoadServlet")
public class LoadServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
    public LoadServlet() {
        super();
        // TODO Auto-generated constructor stub
    }
    protected void doGet(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException {
        // TODO Auto-generated method stub
     response.setContentType("text/html;charset=utf-8");
     response.setCharacterEncoding("utf-8");
     PrintWriter out =response.getWriter();
     out.println("<ul id='myul'>");
     out.println("<li id='myli'>北京</li>");
     out.println("<li>上海</li>");
     out.println("<li>南京</li>");
     out.println("</ul>");
     out.close();
    }
    protected void doPost(HttpServletRequest request,IOException {
        // TODO Auto-generated method stub
        request.setCharacterEncoding("utf-8");
        String username=request.getParameter("username");
        int age=Integer.parseInt(request.getParameter("age"));
        response.setCharacterEncoding("utf-8");
        PrintWriter out =response.getWriter();
        out.println("<p>我的名字叫:"+username+",今年"+age+"岁</p>");
        out.close();
    }

}

截图：

Ajax在JQuery的运用（load方法练习）

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