使用Ajax向服务器端发送请求

发布时间：2020-12-16 02:08:11 所属栏目：百科来源：网络整理

导读：%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"htmlheadmeta http-equiv="Content-Type" content="text/ht

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>使用xml格式完成数据的传输</title>
<script type="text/javascript">
window.onload = function (){
	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){
					//结果为XML格式，需要使用responseXML来获取
					var result = request.responseText;
					var object = eval("("+ result+")");
					
					//结果不能直接使用，必须先创建节点，然后再把节点添加到目标节点中
					var name = object.person.name;
					var age = object.person.age;
					var phone = object.person.phone;
					alert("name:"+name+" age:"+age+" phone:"+phone);
				}
			}
		};
		//阻止a标签的默认行为
		return false;
	};
};
</script>
</head>
<style>
#div1{
	width:400px;
	height:400px;
	background:#FFAABB;
}
</style>
<body>
	<a href="json.js" >使用xml格式完成页面数据的传输</a>
	<div id="div1"></div>
</body>
</html>

请求的json文件：

{
	"person":{
		"name":"liuyanmin","age":"21","phone":"18888888888"
	}
}

（编辑：李大同）

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