ajax封装

function ajaxPost(data, url, successFn, errorFn,beforeFn,completeFn) {
    $.ajax({
        url: globe.baseUrl + url,
        data: data,
        dataType: "json",
        type: "POST",
        beforeSend:function(){
            if(typeof beforeFn == "function"){
                beforeFn();
            }
        },
        complete:function(){
            if(typeof completeFn == "function"){
                completeFn();
            }
        },
        success: function (d) {
            if (d.code === globe.statusCode.success_code) {
                successFn(d);
            } else if (d.code === globe.statusCode.overdue_token) {
                layer.msg("登录失效，请重新登录", {time: 2000},function () {
                    removeStorage('userInfo');
                    openLoginWindow();
                });

            } else {
                layer.msg(d.msg, {time: 2000});
                successFn(d); // code为0的回调
            }
        },
        error: function (e) {
            console.log(e);
            layer.msg("服务器请求失败，稍后重试！", {time: 2000});
            typeof errorFn == "function" && errorFn(e);
        }
    });
}

调用

  let layer_index = 0;
ajaxPost(_param, globe.baseApi.school_index, function (res) {
　　
        // 成功回调
    },function () {
　　　　// 失败回调
    },function () {
　　　　// 接口结果返回之前回调
        layer_index =  layer.msg('数据搜索中...',{
            icon: 16
        });
    },function () {
　　　　// 接口请求结束回调
        layer.close(layer_index);
    });