发布于 2016-08-27 22:57:52 | 126 次阅读 | 评论: 1 | 来源: 网友投递
jQuery javascript框架
jQuery是一个兼容多浏览器的javascript框架，核心理念是write less,do more(写得更少,做得更多)。jQuery在2006年1月由美国人John Resig在纽约的barcamp发布，吸引了来自世界各地的众多JavaScript高手加入，由Dave Methvin率领团队进行开发。
// Create the request object; Microsoft failed to properly
// implement the XMLHttpRequest in IE7, so we use the ActiveXObject when it is available
// This function can be overriden by calling jQuery.ajaxSetup
xhr:function(){
return window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
},
/*
* jQuery JavaScript Library v1.3.2
* http://jquery.com/
*
* Copyright (c) 2009 John Resig
* Dual licensed under the MIT and GPL licenses.
* http://docs.jquery.com/License
*
* Date: 2009-02-19 17:34:21 -0500 (Thu, 19 Feb 2009)
* Revision: 6246
*/
<!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>Insert title here</title>
<script type="text/javascript" src="javascript/jquery.js"></script>
<script type="text/javascript">
$(function (){
$.ajax({
url:"index.jsp",
success:function(){alert("success")},
error:function(){alert("error")}
});
//$("div").append("<font color='red'>window.ActiveXObject:</font>");
//$("div").append((window.ActiveXObject?"true":"false"));
//alert(typeof(new XMLHttpRequest()));
//alert(typeof(new ActiveXObject("Msxml2.XMLHTTP.4.0")));
//alert(typeof(new ActiveXObject("Msxml2.XMLHTTP")));
//alert(typeof(new ActiveXObject("Microsoft.XMLHTTP")));
});
</script>
</head>
<body>
<div></div>
</body>
</html>
var Ajax = {
getTransport: function() {
return Try.these(
function() {return new XMLHttpRequest()},
function() {return new ActiveXObject('Msxml2.XMLHTTP')},
//function() {return new ActiveXObject('Msxml2.XMLHTTP.4.0')},
function() {return new ActiveXObject('Microsoft.XMLHTTP')}
) || false;
},