RabbitMQ通过Exchange.fanout、不同的队列绑定同一个Exchange实现多播处理

消费者1:

 static void Main(string[] args)
        {
            ConnectionFactory factory = new ConnectionFactory()
            {
                HostName = "192.168.254.40",
                UserName = "admin",
                Password = "admin",
            };

            //第一步：创建connection
            var connection = factory.CreateConnection();

            //第二步：创建一个channel
            var channel = connection.CreateModel();

            //第三步：申明交换机【因为rabbitmq已经有了自定义的ampq default exchange】
            channel.ExchangeDeclare("myfanoutexchange", ExchangeType.Fanout, true, false, null);

            //第四步：创建一个队列(queue)
            channel.QueueDeclare("myfanoutqueue", true, false, false, null);

            //将queue绑定到exchange之上。。。。
            channel.QueueBind("myfanoutqueue", "myfanoutexchange", string.Empty, null);

            EventingBasicConsumer consumer = new EventingBasicConsumer(channel);

            consumer.Received += (sender, e) =>
            {
                var msg = Encoding.UTF8.GetString(e.Body);

                Console.WriteLine(msg);
            };

            channel.BasicConsume("myfanoutqueue", true, consumer);

            Console.WriteLine("consumer1 端启动完毕！！！");

            Console.Read();
        }

消费者2：

static void Main(string[] args)
        {
            ConnectionFactory factory = new ConnectionFactory()
            {
                HostName = "192.168.254.40",
                UserName = "admin",
                Password = "admin",
            };

            //第一步：创建connection
            var connection = factory.CreateConnection();

            //第二步：创建一个channel
            var channel = connection.CreateModel();

            //第三步：申明交换机【因为rabbitmq已经有了自定义的ampq default exchange】
            channel.ExchangeDeclare("myfanoutexchange", ExchangeType.Fanout, true, false, null);

            //第四步：创建一个队列(queue)
            channel.QueueDeclare("myfanoutqueue2", true, false, false, null);

            //将queue绑定到exchange之上。。。。
            channel.QueueBind("myfanoutqueue2", "myfanoutexchange", string.Empty, null);

            EventingBasicConsumer consumer = new EventingBasicConsumer(channel);

            consumer.Received += (sender, e) =>
            {
                var msg = Encoding.UTF8.GetString(e.Body);

                Console.WriteLine(msg);
            };

            channel.BasicConsume("myfanoutqueue2", true, consumer);

            Console.WriteLine("consumer2 端启动完毕！！！");

            Console.Read();
        }

生产者:

 static void Main(string[] args)
        {
            ConnectionFactory factory = new ConnectionFactory()
            {
                HostName = "192.168.254.40",
                UserName = "admin",
                Password = "admin",
            };

            //第一步：创建connection
            var connection = factory.CreateConnection();

            //第二步：创建一个channel
            var channel = connection.CreateModel();

            for (int i = 0; i < 10; i++)
            {
                var msg = Encoding.UTF8.GetBytes(string.Format("{0} :{1}", i, "你好"));

                //第五步：发布消息
                channel.BasicPublish("myfanoutexchange", routingKey: string.Empty, basicProperties: null, body: msg);

                Console.WriteLine(i);
            }
        }

先启动消费端进行绑定，生产者发送消息到exchange，两个消费端绑定不同的队列都得到了相同的消息