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c# rabbitmq 簡單收發訊息的示例程式碼

釋出訊息:(生產者)

   /// <summary>
    /// 傳送訊息
    /// </summary>
    /// <param name="queue">佇列名</param>
    /// <param name="message">訊息內容</param>
    private static void PublishInfo(string queue,string message)
    {
      try
      {
        var factory = new ConnectionFactory();
        factory.HostName = "localhost";//RabbitMQ服務在本地執行
        factory.UserName = "guest";//使用者名稱
        factory.Password = "guest";//密碼

        using (var connection = factory.CreateConnection())
        {
          using (var channel = connection.CreateModel())
          {
            bool durable = true;//將訊息標記為永續性
            channel.QueueDeclare(queue,durable,false,null);

            IBasicProperties properties = channel.CreateBasicProperties();
            properties.DeliveryMode = 2;

            var body = Encoding.UTF8.GetBytes(message);
            channel.BasicPublish("",queue,properties,body); //開始傳遞

          }
        }
      }
      catch (System.Exception ex)
      {
        Console.WriteLine(ex.ToString());
      }
      Console.ReadLine();
    }

使用:

PublishInfo("test","222222222222");

c# rabbitmq 簡單收發訊息的示例程式碼

c# rabbitmq 簡單收發訊息的示例程式碼

點選test進入佇列內部:

c# rabbitmq 簡單收發訊息的示例程式碼

消費訊息:

方法一:舊版可用

 private static void ConsumeInfo(string queue)
    {
      try
      {
        var factory = new ConnectionFactory();
        factory.HostName = "localhost";//RabbitMQ服務在本地執行
        factory.UserName = "guest";//使用者名稱
        factory.Password = "guest";//密碼

        using (var connection = factory.CreateConnection())
        {
          using (var channel = connection.CreateModel())
          {
            //bool durable = true;//將訊息標記為永續性
            //channel.QueueDeclare("sljcgx:finish-queue",null);//宣告佇列,佇列不存在則建立該佇列

            //設定prefetchCount : 1來告知RabbitMQ,在未收到消費端的訊息確認時,不再分發訊息,也就確保了當消費端處於忙碌狀態時,不再分配任務。
            channel.BasicQos(prefetchSize: 0,prefetchCount: 1,global: false);
            var consumer = new QueueingBasicConsumer(channel);
           
            //false為手動確認,獲取訊息後需要新增 channel.BasicAck(ea.DeliveryTag,false)確認
            //true則為自動確認,不需要這行程式碼
            channel.BasicConsume(queue,consumer);

            while (true)
            {
              try
              {
                var ea = (BasicDeliverEventArgs)consumer.Queue.Dequeue();//阻塞函式,獲取佇列中的訊息
                var bodyReceive = ea.Body;
                string message = Encoding.UTF8.GetString(bodyReceive);
                Console.WriteLine(message);
                channel.BasicAck(ea.DeliveryTag,false);// 訊息確認訊號,確認後該訊息將從佇列裡移除
              }
              catch (System.Exception ex)
              {
                
                Console.WriteLine(ex.Message);
              }
            }
          }

        }
      }
      catch (System.Exception ex)
      {
        Console.WriteLine(ex.ToString());
      }
      Console.ReadLine();
    }

方法二:(通用)

   private static void ConsumeInfo2(string queue)
    {
      try
      {
        var factory = new ConnectionFactory();
        factory.HostName = "localhost";//RabbitMQ服務在本地執行
        factory.UserName = "guest";//使用者名稱
        factory.Password = "guest";//密碼
        var connection = factory.CreateConnection();
        var channel = connection.CreateModel();
        channel.QueueDeclare(queue,true,null);//宣告佇列,佇列不存在則建立該佇列
        channel.BasicQos(0,1,false);//公平分發、同一時間只處理一個訊息。

        var consumer = new EventingBasicConsumer(channel); //消費者(指定訊息通道)該事件在接收到訊息時觸發
        consumer.Received += (sender,e) =>
        {
          byte[] body = e.Body.ToArray();  //訊息位元組陣列
          string message = Encoding.UTF8.GetString(body); //訊息內容

          Console.WriteLine(message);
          channel.BasicAck(e.DeliveryTag,false);    //手工確認

        };
        channel.BasicConsume(queue,consumer);  //消費訊息(在當前通道中監聽 queue 佇列,並進行消費)
        Console.ReadLine();
        connection.Close();
        channel.Close();
      }
      catch (System.Exception ex)
      {
        Console.WriteLine(ex.ToString());
      }
    }

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