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ajax.js
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ajax.js
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/**
* 简易的AJAX
*/
var $Ajax={
run: function (options) {
options = options || {};
options.type = (options.type || "GET").toUpperCase();
options.dataType = options.dataType || "json";
var params = this.formatParams(options.data);
//创建 - 非IE6 - 第一步
if (window.XMLHttpRequest) {
var xhr = new XMLHttpRequest();
} else { //IE6及其以下版本浏览器
var xhr = new ActiveXObject('Microsoft.XMLHTTP');
}
xhr.onreadystatechange = function () {
if (xhr.readyState == 4) {
var status = xhr.status;
if (status >= 200 && status < 300) {
if (xhr.responseXML) xhr.responseText=xhr.responseXML;
options.success && options.success(xhr.responseText);
} else {
options.fail && options.fail(status);
}
}
}
if (options.type == "GET") {
xhr.open("GET", options.url + "?" + params, true);
xhr.send(null);
} else if (options.type == "POST") {
xhr.open("POST", options.url, true);
//设置表单提交时的内容类型
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xhr.send(params);
}
},formatParams:function (data) {
var arr = [];
for (var name in data) {
arr.push(encodeURIComponent(name) + "=" + encodeURIComponent(data[name]));
}
arr.push(("v=" + Math.random()).replace(".",""));
return arr.join("&");
},post:function(url,data,functions){
this.run({
url: url, //请求地址
type: "POST", //请求方式
data: data, //请求参数
dataType: "json",
success: functions,
fail: functions
});
},get:function(url,functions){
this.run({
url: url, //请求地址
type: "GET", //请求方式
data: null, //请求参数
dataType: "json",
success: functions,
fail: functions
});
}
}