.net core 下使用 RabbitMQ 设置1次消费1条消息 (六)

主要设置

设置prefetchCount=1，来告知RabbitMQ，在未收到消费端的消息确认时，不再分发消息，也就确保了当消费端处于忙碌状态时，不再分配任务。

channel.BasicQos(prefetchSize: 0, prefetchCount: 1, global: false);

 

 public static void ReceiveMessage()
        {
            string queueName = "Worker_Queue";
            var connection = RabbitMQHelper.GetConnection();
            {
                var channel = connection.CreateModel();
                {
                    channel.QueueDeclare(queueName, false, false, false, null);
                    var consumer = new EventingBasicConsumer(channel);
                    //设置prefetchCount : 1来告知RabbitMQ，在未收到消费端的消息确认时，不再分发消息，也就确保了当消费端处于忙碌状态时，不再分配任务。
                    channel.BasicQos(prefetchSize: 0, prefetchCount: 1, global: false); //能者多劳
                    consumer.Received +=(model, ea) => {
                        var message = Encoding.UTF8.GetString(ea.Body.ToArray());
                        Console.WriteLine(" Worker Queue Received => {0}", message);
                    }; 
                    channel.BasicConsume(queueName,true, consumer);
                }
               
            }
          
        }