ajax异步举例

SelectInfo = {

    release_url: "/compatible/getReleaseFor",
    project_url: "/compatible/getProjectInfo",

    init:function (){
        this.initReleaseInfo();
        this.initProjectInfo();
    },

    initReleaseInfo: function (){
        //var datas = this.getReleaseInfo(this.release_url);
        this.getSelectInfo(this.release_url, true, function(datas) {
            var selectDiv = $("#compatibletest-release-select");
            selectDiv.append("<option></option>");

            for(var i=0;i<datas.length;i++){
                var data = datas[i];

                var html = '<option name="'+data +'">' + data + '</option>';
                selectDiv.append(html);
            }
        });
    },


    initProjectInfo: function (){
        //var datas = this.getReleaseInfo(this.release_url);
        this.getSelectInfo(this.project_url, true, function(datas) {
            var selectDiv = $("#compatible-project-select");
            selectDiv.append("<option></option>");

            for(var i=0;i<datas.length;i++){
                var data = datas[i];

                var html = '<option name="'+data +'">' + data + '</option>';
                selectDiv.append(html);
            }
        });
    },

    beforeShow: function () {
        var thiz = this;
        $('#' + this.domId).on('show.bs.modal', function(event){
            var branchUrl = $("#branch-url-span").html();
            $("#qmstest-branch").val(branchUrl);
            TestCaseSuite.list(true, function(datas){
                var qmsTestTypeDiv = $("#qms-test-type-div");

                for(var i=0; i<datas.length; i++) {
                    var data = datas[i];

                    var html = '<div class="checkbox">' +
                        '<label>' +
                        '<input type="checkbox" name="input-qms-testccasesuites-checkbox" value="' + data.id + '" checked>' + data.name +
                        '</label>' +
                        '</div>';
                    qmsTestTypeDiv.append(html);
                }
            });

        });
    },

    getSelectInfo: function (url,async,func) {

        if (async == null || async == undefined) {
            async = true;
        }

        var datas = null;

        $.ajax({
            type: "GET",
            url: url,
            async: async,
            success : function(result) {
                if (result.code != "SUCC") {
                    var title = "release选项数据获取失败";
                    var errorMsg = "[" + result.code + "] " + result.data.errMsg;
                    toastr.error(errorMsg, title);
                    return;
                }
                datas = result.data;

                if (func != undefined && $.isFunction(func)) {
                    func(datas);
                }
            }

        });
        return datas;
    },
}