标签：js跨域 javascript 跨域 javascript跨域
/**********************************************************
说明：跨域请求数据Javascript组件
----------------------------------------------------------
add by 傻帽儿 2015-4-13 18:18:14
**********************************************************/
; (function (window, undefined) {
var _ap = function () {
}, _asyncID = 12349, _asyncType = "asynctype", _version = "1.5.0", _cbKey = "cb", _cb = "";
function addSc(url, cbAndParam) {
var script = createSc();
script.setAttribute("src", url + "?" + cbAndParam);
window.document.getElementsByTagName("head")[0].appendChild(script);
};
function delSc(id) {
var scripts = getSc();
for (var i = 0; i < scripts.length; i++) {
if (scripts[i].attributes["tb_id"]) {
if (parseInt(scripts[i].attributes["tb_id"].value) === parseInt(id)) {
remove(scripts[i]);
}
}
}
};
function remove(script) {
if ((script) && (script.parentNode)) {
script.parentNode.removeChild(script);
}
};
function clearSc() {
var scripts = getSc();
for (var i = 0; i < scripts.length; i++) {
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}
};
function getSc() {
var s1 = [];
var scripts = window.document.getElementsByTagName("script");
for (var i = 0; i < scripts.length; i++) {
if (scripts[i].attributes["tb_async"]) {
if (scripts[i].attributes["tb_async"].value === _asyncType) {
s1.push(scripts[i]);
}
}
}
return s1;
};
function createSc() {
_asyncID++;
var script = window.document.createElement("script");
script.setAttribute("tb_id", _asyncID);
script.setAttribute("tb_async", _asyncType);
script.setAttribute("type", "text/javascript");
script.onload = script.onreadystatechange = function () {
if (!this.readyState || this.readyState === "loaded" || this.readyState === "complete") {
// 加入等待队里。2秒后将此标签对象移除。避免过多跨域加载导致页面Script标签过多。
// waitDel(this.attributes["tb_id"].value, 2000);
delSc(this.attributes["tb_id"].value);
// 解决内存泄露问题。IE6，7貌似无效
script.onload = script.onreadystatechange = null;
}
}
return script;
}
function waitDel(id, interval) {
window.setInterval(delSc(id), interval);
};
_ap.fn = _ap.prototype = {
constructor: _ap,
version: _version,
init: function (arg) {
return new _ap().constructor;
},
get: function (url, cbk, cb, param) {
if (!cb) cb = _cb;
if (!cbk) cbk = _cbKey;
var qs = this.map(‘,‘, param);
addSc(url, _cbKey + "=" + cb + "&" + qs);
},
getEasy: function (url, cb, param) {
if (!cb) cb = _cb;
var qs = this.map(‘,‘, param);
addSc(url, _cbKey + "=" + cb + "&" + qs);
},
getCustom: function (url, param) {
addSc(url, this.map(‘,‘, param));
},
map: function (split, params) {
var str, strs = [];
if (typeof params != "string") {
params = eval(params);
for (var p in params) {
strs.push(p + "=" + params[p])
}
str = strs.join(split);
} else {
str = param;
}
return str;
},
clear: function () { clearSc(); }
};
// SyntaxError: expected expression, got ‘)‘
_ap.fn.init.prototype = _ap.fn;
window.TbAP = _ap.fn.init();
})(window);本文出自 “傻帽” 博客，请务必保留此出处http://hotboy.blog.51cto.com/8826994/1632040
标签：js跨域 javascript 跨域 javascript跨域
原文地址：http://hotboy.blog.51cto.com/8826994/1632040
