//ajax的封装
var Ajax = {
method: 'post',
asynchronous: true,
proxy: null,
contentType: "application/x-www-form-urlencoded",
create: function () {
var me = this, proxy;
var xmlhttpObj = ['MSXML2.XMLHTTP.3.0',
'MSXML2.XMLHTTP',
'Microsoft.XMLHTTP'];
if (window.XMLHttpRequest)// firefox
{
proxy = new XMLHttpRequest();
}
else if (typeof ActiveXObject != "undefined")// IE
{
for (var i = 0, len = xmlhttpObj.length; i < len; i++) {
if (!proxy)
proxy = new ActiveXObject(xmlhttpObj[i]);
else
break;
}
}
return proxy;
},
stateChange: function (proxy, callback) {
var me = this;
var readyState = proxy.readyState;
if (readyState == 4 && proxy.status == 200)
(callback || function () { }).call(me, proxy.responseText, proxy);
},
analyzeParam: function (params) {
var arrp = [];
for (var p in (params || {})) {
arrp.push("&" + p + "=" + params[p]);
}
return arrp.join().replace(/\,/g, "");
},
request: function (cfg) {
var me = this;
var proxy = me.create();
if (proxy) {
proxy.onreadystatechange = function () {
me.stateChange.call(me, proxy, cfg.callback);
};
}
var param = me.analyzeParam(cfg.params);
try {
proxy.open(me.method, cfg.url, me.asynchronous);
proxy.setRequestHeader("Content-type", me.contentType);
proxy.send(me.analyzeParam.call(me, cfg.params));
}
catch (ex) {
alert(ex.message)
}
}
};
//调用方法
Ajax.request({
url:"text.aspx",
params:{name:'aa',age:20},
callback:function(response){alert(response)}
});
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