消息被发送到队列中。“消息队列”是在消息的传输过程中保存消息的容器。消息队列管理器在将消息从它的源中继到它的目标时充当中间人。队列的主要目的是提供路由并保证消息的传递；如果发送消息时接收者不可用，消息队列会保留消息，直到可以成功地传递它。

c#中发往消息队列中发送消息

  public bool SendMessage(string title, string body)
        {
            MessageQueue SmsQueue = new MessageQueue();
            try
            {
                string mqPath = System.Configuration.ConfigurationSettings.AppSettings["SiteEnvironmentMQPath"];//给基站告警用的（wz的程序）
                string MQPath = string.Format(@"FormatName:DIRECT=TCP:{0}", mqPath);

                SmsQueue.MessageReadPropertyFilter.Body = true;
                SmsQueue.MessageReadPropertyFilter.AppSpecific = true;
                SmsQueue.MessageReadPropertyFilter.Priority = true;
                SmsQueue.Formatter = new System.Messaging.XmlMessageFormatter(new Type[] { typeof(string) });
                SmsQueue.Path = MQPath;
                Message objMsg = new Message();
                objMsg.Label = title;
                objMsg.Body = body;
                SmsQueue.Send(objMsg);

  　　　　  return true;
            }
            catch (Exception ex)
            {
                return false;
            }
            finally
            {
                SmsQueue.Close();
            }
        }

c# 从消息队列中取消息

 public string ReceiveMessage(string mqPath)
        {
            string ret = "";
            MessageQueue SmsQueue = new MessageQueue();
            try
            {
                string MQPath = string.Format(@"FormatName:DIRECT=TCP:{0}", mqPath);
                //string MQPath = System.Configuration.ConfigurationSettings.AppSettings["MQPath"];
                SmsQueue.MessageReadPropertyFilter.Body = true;
                SmsQueue.MessageReadPropertyFilter.AppSpecific = true;
                SmsQueue.MessageReadPropertyFilter.Priority = true;
                SmsQueue.Formatter = new System.Messaging.XmlMessageFormatter(new Type[] { typeof(string) });
                SmsQueue.Path = MQPath;
                Message objMsg = SmsQueue.Receive();
                ret = objMsg.Body.ToString();
            }
            catch (Exception ex)
            {
                //LogClass.WriteLog("错误", DateTime.Now.ToString(), ex.Message, "从消息队列读取告警数据");
                //System.Threading.Thread.Sleep(Convert.ToInt16(System.Configuration.ConfigurationSettings.AppSettings["sleepTime"]));
            }
            finally
            {
                SmsQueue.Close();
            }
            return ret;
        }