对于低版本IE，ajax的设置处理

!(function() {

    var timeout = 16000;

    //设置ajax请求的setting配置----start

    jQuery.support.cors = true;

    $.extend($.ajaxSettings, {

        cache: true,

        timeout: timeout, //毫秒

        dataType: "json",

        type: "POST",

        xhrFields: {

            withCredentials: true

        },

        crossDomain: !0

        //      contentType: "application/x-www-form-urlencoded;charset=UTF-8"

    });

    //设置ajax请求的setting配置----end

    /**

     * 判断是否是低于制定版本的ie

     */

    window.IsLetIe = function() {

        var ua = navigator.userAgent;

        return ua.indexOf("MSIE 6") > 0 || ua.indexOf("MSIE 7") > 0 || ua.indexOf("MSIE 8") > 0 || ua.indexOf("MSIE 9") > 0;

    }

    /**

     * ajax封装 默认get

     * @param {String} url 地址

     * @param {JSON} data 数据

     * @param {String} type 数据

     * @param {Function} okFn 成功回调

     * @param {Function} failFn 失败回调

     * @param {Function} errFn 错误回调

     * @param {Function} cmpFn 完成回调

     */

    window.Ajax = function(url, data, type, okFn, failFn, errFn, cmpFn) {

        type = type ? type : 'GET';

        //ie9以下 传json string 在IE6,7,8,9下 传json后端获取不到 只能在body中读取流

        var contentType = 'application/x-www-form-urlencoded;charset=UTF-8';

        if(window.IsLetIe()) {

            data = JSON.stringify(data);

            contentType = 'text/plain';

        }

        $.ajax({

            url: url,

            type: type,

            asysc: true,

            data: data,

            contentType: contentType,

            beforeSend: function(request) {},

            success: function(response) {

                if(response.responseCode == '001') {

                    typeof okFn == 'function' && okFn(response);

                } else {

                    typeof failFn == 'function' && failFn(response);

                }

            },

            error: function(xhr, msg, err) {

                //alert('xhr-->' + JSON.stringify(xhr))

                //alert('msg-->' + msg)

                //alert('err-->' + JSON.stringify(err))

                if(typeof errFn == "function" && errFn) {

                    errFn(xhr);

                } else {

                    alert('请求失败，请稍后重试');

                }

            },

            complete: function(response) {

                typeof cmpFn == "function" && cmpFn();

            }

        });

    }

    /**

     * post请求

     * @param {String} url 地址

     * @param {JSON} data 数据

     * @param {Function} okFn 成功回调

     * @param {Function} failFn 失败回调

     * @param {Function} errFn 错误回调

     * @param {Function} cmpFn 完成回调

     */

    window.AjaxPost = function(url, data, okFn, failFn, errFn, cmpFn) {

        Ajax(url, data, 'POST', okFn, failFn, errFn, cmpFn);

    }

    /**

     * get请求

     * @param {String} url 地址

     * @param {JSON} data 数据

     * @param {Function} okFn 成功回调

     * @param {Function} failFn 失败回调

     * @param {Function} errFn 错误回调

     * @param {Function} cmpFn 完成回调

     */

    window.AjaxGet = function(url, data, okFn, failFn, errFn, cmpFn) {

        Ajax(url, data, 'GET', okFn, failFn, errFn, cmpFn);

    }

    var _app = {

        config: {

            environment: 'prod' //当前接口环境

        },

        domain: {

            qirong: {

                prod: baseURL + '/'

            }

        },

        source: {

            inter: {

                getInterInfo: 'into/getInterInfo.do'

            }

        },

        api: {

            getInterInfo: function(inputData, okFn, failFn, errFn, cmpFn) {

                AjaxPost(_app.source.inter.getInterInfo, inputData, okFn, failFn, errFn, cmpFn);

            }

        },

        init: function() {

            //加载接口

            this.load();

            window.Api = _app.api;

        },

        load: function() {

            //遍历source 获取所有类型名称 inner,ocrweb....

            for(var type in this.source) {

                //遍历source[type]当前的类型下的接口地址 例source.inner.creatImg

                for(var item in this.source[type]) {

                    //将当前项的地址拼根据当前接口环境拼接上主域名

                    this.source[type][item] = [this.domain[type][this.config.environment], this.source[type][item]].join('');

                }

            }

        }

    }

    _app.init();

})();