Senparc.Weixin.MP.Sample.CommonService.CustomMessageHandler.CustomMessageHandler.OnEvent_SubscribeRequest C# (CSharp) Method

        public override IResponseMessageBase OnEvent_SubscribeRequest(RequestMessageEvent_Subscribe requestMessage)
        {
            var responseMessage = ResponseMessageBase.CreateFromRequestMessage<ResponseMessageText>(requestMessage);
            responseMessage.Content = GetWelcomeInfo();
            if (!string.IsNullOrEmpty(requestMessage.EventKey))
            {
                responseMessage.Content += "\r\n============\r\n场景值：" + requestMessage.EventKey;
            }

            //推送消息
            //下载文档
            if (requestMessage.EventKey.StartsWith("qrscene_"))
            {
                var sceneId = long.Parse(requestMessage.EventKey.Replace("qrscene_", ""));
                //var configHelper = new ConfigHelper(new HttpContextWrapper(HttpContext.Current));
                var codeRecord =
                    ConfigHelper.CodeCollection.Values.FirstOrDefault(z => z.QrCodeTicket != null && z.QrCodeId == sceneId);

                if (codeRecord != null)
                {
                    if (codeRecord.AllowDownload)
                    {
                        Task.Factory.StartNew(() => AdvancedAPIs.CustomApi.SendTextAsync(null, WeixinOpenId, "下载已经开始，如需下载其他版本，请刷新页面后重新扫一扫。"));
                    }
                    else
                    {
                        //确认可以下载
                        codeRecord.AllowDownload = true;
                        Task.Factory.StartNew(() => AdvancedAPIs.CustomApi.SendTextAsync(null, WeixinOpenId, GetDownloadInfo(codeRecord)));
                    }
                }
            }


            return responseMessage;
        }