Ajax 原生测试案例

2016-7-11 流沙团
Ajax以前学习过，但是忘记的差不多了，再来看看吧。。
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>

<%

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>My JSP 'index.jsp' starting page</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">

	<!--

	<link rel="stylesheet" type="text/css" href="styles.css">

	-->

  </head>

  

  <script type="text/javascript">

  	window.onload=function(){

  		//针对A节点的操作

  		document.getElementsByTagName("a")[0].onclick = function(){

  			 var request = new XMLHttpRequest();

  			 var url=this.href;

  			 var method="GET";

  			 

  			 request.open(method,url);

  			 request.send(null);

  			 

  			 request.onreadystatechange = function(){

  			 	if(request.readyState == 4){

  			 		if(request.status==200 || request.status == 304){

  			 			alert(request.responseText);

  			 		}

  			 	}

  			 }

  			 

  			

  			return false;

  		}

  	}

  	

  </script>

  <body>

    <a href="helloAjax.txt">Ajax</a>

  </body>

</html>
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