使用Ajax向服务器端发送请求
<%@ 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"
}
}