$(function () {
    //继承jquery的$.ajax方法  
    var _ajax = $.ajax;
    $.r_ajax = function (opt) {
        //备份opt中error和complete方法  
        var fn = {}
        if (opt.loading) {
            fn.beforeSend = ajaxLoading();
        }
        if (opt.url.indexOf('?') > -1)
            opt.url = opt.url + "&ajaxGuid=" + GetGuid();
        else
            opt.url = opt.url + "?ajaxGuid=" + GetGuid();
        fn.complete = opt.complete;
        //扩展增强处理  
        var _opt = $.extend(opt, {
            complete: function (xhr, ts) {
                //成功回调方法增强处理  
                if (opt.loading)
                    ajaxLoadEnd();
                if (fn.complete != null)
                    fn.complete(xhr, ts);
            }
        });
        _ajax(_opt);
    };

    //继承jquery的$.post方法
    var _post = $.post;
    $.r_post = function (url, data, success, dataType) {
        ajaxLoading();//Loading功能
        var n_success = success;
        var r_data = data;
        var r_dataType = dataType || "json";
        if (!isJson(data)) {
            n_success = data;
            r_data = {};
            r_dataType = success;
        }
        var r_success = function (r_data, r_textStatus, r_jqXHR) {
            ajaxLoadEnd();
            n_success(r_data, r_textStatus, r_jqXHR);
        }
        if (url.indexOf('?') > -1)
            url = url + "&postGuid=" + GetGuid();
        else
            url = url + "?postGuid=" + GetGuid();
        _post(url, r_data, r_success, r_dataType);
    };

});

function isJson(obj) {
    var isjson = typeof (obj) == "object" && Object.prototype.toString.call(obj).toLowerCase() == "[object object]" && !obj.length;
    return isjson;
}
function ajaxLoading() {
    layui.use('layer', function () {
        var layer = layui.layer;

        layer.load(2, { time: 10 * 1000 });
    });
}
function ajaxLoadEnd() {
    layui.use('layer', function () {
        var layer = layui.layer;

        layer.closeAll('loading');
    });
}