public async Task <ActionResult> AppDownloadListAsync(FormCollection fc)
        {
            HttpPostedFileBase file = Request.Files["appPath"];

            if (file != null)
            {
                AppDownloadCount adc = new AppDownloadCount()
                {
                    ArticleTitle = fc["apptitle"],
                    Channel      = fc["appchannel"],
                    Creator      = User.Identity.Name,
                    AppUrl       = "",
                    OtherChannel = fc["otherSpread"]
                };

                int pkid = new SemCampaignHandler(DbScopeManager).CreateApp(adc);
                try
                {
                    var str = await SaveFileAsync(file);

                    if (str.Success)
                    {
                        new SemCampaignHandler(DbScopeManager).CreateOrDeleteApp(imgUrl + str.Result, pkid);
                    }
                    else
                    {
                        //没有更新成功,把之前新增的记录删除
                        var wew = new SemCampaignHandler(DbScopeManager).CreateOrDeleteApp("", pkid);
                    }
                }
                catch (Exception ex)
                {
                    new SemCampaignHandler(DbScopeManager).CreateOrDeleteApp("", pkid);
                    return(Json(ex.Message));
                }
                return(RedirectToAction("Index"));
            }
            else
            {
                return(Json("没有获取到上传文件,请返回重新提交!"));
            }
        }
        /// <summary>
        /// 获取下载记录
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public JsonResult GetHistory(int id)
        {
            var ss = new SemCampaignHandler(DbScopeManager).AppDownloadActionList(id);

            return(Json(ss, JsonRequestBehavior.AllowGet));
        }