public async Task <IActionResult> Addgood(Good good)
        {
            string userName = HttpContext.Session.GetString("UserName");

            log.InfoFormat(userName + " || Get into 上传商品");
            try
            {
                await _indexManager.AddGoodAsync(good);

                log.InfoFormat("上传商品成功");
                ViewData["UserName"] = userName;
                return(RedirectToAction("Allgoodlist"));
            }
            catch (Exception e)
            {
                log.Error("上传商品失败,错误提示: " + Helper.JsonHelper.ToJson(e));
                return(View("Error", e));
            }
        }