/// <summary>
        /// 异步请求处理
        /// </summary>
        /// <param name="message"></param>
        /// <returns></returns>
        public async Task <ResponseMessage> RequestAsync(RequestMessage message)
        {
            try
            {
                if (string.IsNullOrWhiteSpace(message.Id))
                {
                    return(ResponseMessage.GetResponseMessageFromErrorCode(message,
                                                                           ErrorCodes.MessageIdNullOrWhiteSpace));
                }

                //获取服务对应的消息处理器服务
                if (DuplexServicePool.TryGetMessageHandler(ServiceHost, out var messageHandler))
                {
                    //获取对应此消息Id的请求处理
                    if (messageHandler.TryGetMessageListener(message.Id,
                                                             out Func <RequestMessage, Task <ResponseMessage> > requestAsyncFunc))
                    {
                        return(await requestAsyncFunc.Invoke(message));
                    }

                    return(ResponseMessage.GetResponseMessageFromErrorCode(message,
                                                                           ErrorCodes.GetRequestMessageListenerFailed));
                }

                return(ResponseMessage.GetResponseMessageFromErrorCode(message, ErrorCodes.GetMessageHandlerFailed));
            }
            catch (Exception e)
            {
                return(ResponseMessage.ExceptionResponseMessage(message, e, false));
            }
        }
 /// <summary>
 /// 通知处理
 /// </summary>
 /// <param name="message"></param>
 public void Notify(NotifyMessage message)
 {
     try
     {
         //获取服务对应的消息处理器服务
         if (DuplexServicePool.TryGetMessageHandler(ServiceHost, out var messageHandler))
         {
             //获取对应此消息Id的通知处理
             if (messageHandler.TryGetMessageListener(message.Id,
                                                      out Action <NotifyMessage> notifyAction))
             {
                 notifyAction.Invoke(message);
             }
         }
     }
     catch (Exception)
     {
         //服务端此处必须忽略异常,否则会导致通信断开
     }
 }