1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
2 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
3 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
4 <html>
5 <head>
6 <meta http-equiv="pragma" content="no-cache">
7 <meta http-equiv="cache-control" content="no-cache">
8 <meta http-equiv="expires" content="0">
9 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
10 <meta http-equiv="description" content="This is my page">
11 <script type="text/javascript">
12 function createXMLHttpRequest() {
13 try {
14 return new XMLHttpRequest();
15 } catch (e) {
16 try {
17 return ActvieXObject("Msxml2.XMLHTTP");
18 } catch (e) {
19 try {
20 return ActvieXObject("Microsoft.XMLHTTP");
21 } catch (e) {
22 alert("用的是什么浏览器啊？");
23 throw e;
24 }
25 }
26 }
27 }
28 window.onload = function() {
29 var btn = document.getElementById("btn");
30 btn.onclick = function() {
31 var xmlHttp = createXMLHttpRequest();
32 xmlHttp.open("GET", "<c:url value='/AServlet'/>", true);
33 xmlHttp.send(null);
34 xmlHttp.onreadystatechange = function() {
35 if(xmlHttp.readyState == 4 && xmlHttp.status == 200) {
36 //改成XML
37 var doc = xmlHttp.responseXML;
38 var age,name;
39 //DOM解析
40 var stu=doc.getElementsByTagName("student")[0];
41 if(window.addEventListener) {
42 name=stu.getElementsByTagName("name")[0].textContent;//其他浏览器
43 age=stu.getElementsByTagName("age")[0].textContent;
44 } else {
45 name=stu.getElementsByTagName("name")[0].text;//IE支持
46 age=stu.getElementsByTagName("age")[0].text;
47 }
48 var text = "姓名："+name+",年龄:"+age;
49 var h1=document.getElementById("h1");
50 h1.innerHTML = text;
51 }
52 };
53 };
54 };
55 </script>
56 </head>
57 <body>
58 <button id="btn">点击这里</button>
59 <h1 id="h1"></h1>
60 </body>
61 </html>
1 import java.io.IOException;
2 import javax.servlet.ServletException;
3 import javax.servlet.http.HttpServlet;
4 import javax.servlet.http.HttpServletRequest;
5 import javax.servlet.http.HttpServletResponse;
6 public class AServlet extends HttpServlet {
7 public void doGet(HttpServletRequest request, HttpServletResponse response)
8 throws ServletException, IOException {
9 //改成xml
10 response.setContentType("text/xml;charset=utf-8");
11 request.setCharacterEncoding("UTF-8");
12 String s= "<student>" +
13 "<name>张三</name>" +
14 "<age>18</age>" +
15 "</student>";
16 response.getWriter().print(s);
17 }
18 }
