标签：blog http io ar os 使用 sp java for
<script>window.name={errno:0, errmsg:‘ok‘}</script>
<script>location.href=‘http://www.12306.cn/proxy.html?func=callback&errno=0&errmsg=ok‘</script>
<!doctype html>
<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head><body><script type="text/javascript">
(function(){
var queryStr = location.search.substring(1).split(‘&‘),oneQueryStr,args = {},g = parent,scope = parent ,callback;
for(var i in queryStr){
oneQueryStr = queryStr[i].split(‘=‘);
if(!callback && oneQueryStr[0] == ‘fun‘){
callback = oneQueryStr[1];
};
if(oneQueryStr[0]&&oneQueryStr[1]){
args[oneQueryStr[0]] = (oneQueryStr[1]||‘‘).replace(/[><‘"{}]/g, ‘‘);
}
}
callback = callback.split(‘.‘);
if( callback[0] === ‘document‘
|| callback[0] === ‘location‘
|| callback[0] === ‘alert‘){
}else{
for(var i = 0,len= callback.length;i<len;i++){
if(i==0 && callback[0]=="parent"){
g = parent;
scope = parent;
}else if(i==0 && callback[0]=="top"){
g = top;
scope = top;
}else{
if(i<len-1){
scope = scope[callback[i]];
}
g = g[callback[i]];
}
}
g.call(scope,args);
}
})();
</script>
</body></html>
$(function() {
‘use strict‘;
/**
* 交互类
* @param {object} param 要提交的数据
* @param {Object} [ajaxOpt] ajax配置
* @param {boolean} [https=false] 是否使用https协议
* @constructor
*/
var Sync = function(param, ajaxOpt, https) {
var protocol = this.protocol = https ? ‘https‘: ‘http‘;
var ajaxOptDefault = {
url: protocol + ‘://‘+location.host,
type: ‘GET‘,
dataType: ‘jsonp‘,
timeout: 20000
};
param = string2JSON(param) || {};
this.protocol = protocol;
this.param = $.extend({}, param, ajaxOpt);
this.ajaxOpt = $.extend({data: this.param}, ajaxOptDefault);
this.HOST = protocol + ‘://‘+location.host;
};
function string2JSON(str){
if($.isPlainObject(str)) {
return str;
}
var params = {};
var str2Arr = str.split(‘&‘);
$.each(str2Arr, function(i, keyVal) {
var arr = keyVal.split(‘=‘);
//去除serialize把空格转成+
params[arr[0]] = decodeURIComponent(arr[1]).replace(/[\+]+/, ‘‘).replace(/[\+]+/, ‘‘);
});
return params;
}
$.extend(Sync.prototype, {
/**
* 通过get方式(jsonp)提交
* @param {String} [url] 请求链接
* @return {Object} promise对象
*/
get: function(url) {
var self = this;
var send = $.ajax(url, this.ajaxOpt);
return send.then(this.done, function(statues) {
return self.fail(statues);
});
},
/**
* 通过post方式提交，依赖psp_jump.html文件
* @param {String} [url] 请求链接
* @return {Object} promise对象
*/
post: function(url) {
var deferred = $.Deferred();
var timer = null;
var guid = parseInt(new Date().getTime().toString().substr(4), 10);
var funName = ‘QBXJsonp‘ + guid;
var formName = ‘QBXForm‘ + guid;
var iframeName = ‘QBXIframe‘ + guid;
// iframe 不能使用attr(‘name‘, xxx) 否则在ie7上添加的不是name属性而是submitName
var iframe = $(‘<iframe name="‘ + iframeName +‘">‘).hide();
var param = $.extend({}, this.param, {proxy: this.HOST+‘/proxy.html‘, callback: funName});
var form = buildForm(param, {name: formName, target: iframeName, url: url || this.ajaxOpt.url});
window[funName] = function (data){
clearTimeout(timer);
var value;
for (var i in data) {
if (data.hasOwnProperty(i)) {
value = decodeURIComponent(data[i]);
if (value.match(/^(\{.*\})|(\[.*\])$/)) {
value = $.parseJSON(value);
}
data[i] = value;
}
}
deferred.resolve(data);
};
timer = setTimeout(function(){
deferred.reject({
errno: 999999,
errmsg: ‘网络超时，请稍后重试‘
});
}, this.ajaxOpt.timeout);
// do some clear
deferred.always(function(data) {
$(iframe).remove();
$(form).remove();
// IE8以下不支持delete window属性
try {
delete window[funName];
} catch (e){
window[funName] = null;
}
});
$(document.body).append(iframe).append(form);
$(form).submit();
return deferred.then(this.done);
},
/**
* 收到响应时默认回调
* @param {Object} data 数据
* @return {Object}
*/
done: function (data) {
var deferred = $.Deferred();
if (data.errno == 0) {
deferred.resolve(data);
} else {
deferred.reject(data);
}
return deferred.promise();
},
/**
* 未收到响应时默认回调
* @param {Object} error 错误信息
* @return {Object}
*/
fail: function(error) {
var deferred = $.Deferred();
deferred.reject({
errno: 999999,
errmsg: ‘网络超时，请稍后重试‘
});
return deferred.promise();
}
});
/**
* 把数据对象转成form元素
* @param {Object} data json数据
* @param {Object} opts form所需参数或其他数据
* @return {Object}
*/
function buildForm(data, opts) {
if (opts.url) {
opts.action = opts.url;
delete opts.url;
}
opts.method = ‘post‘;
var $form = $(‘<form>‘).attr(opts).hide();
$.each(data, function (name, value) {
$(‘<input>‘).attr({type: ‘hidden‘, name: name, value: value}).appendTo($form);
});
return $form[0];
}
window.Sync = Sync;
});
var login = function(data) {
var sync = new Sync(data);
return sync.post(sync.HOST+‘/login‘);
}
login({username: ‘blackMao‘, password: ‘blackMao‘})
.done(function() {
alert(‘登陆成功！‘);
})
.fail(function(error) {
alert(error.errmsg);
});
至此就可以做到跨域请求了~
标签：blog http io ar os 使用 sp java for
原文地址：http://www.cnblogs.com/xiaoheimiaoer/p/4101588.html
