rabbitMQ第五种模型(Topic)

Routing之订阅模型-Topic

　　Topic类型的Exchange和Direct相比，都是可以根据RoutingKey把消息路由到不同列队

只不过Topic类型Exchange可以让列队再绑定RoutingKey的时候使用通配符！

这种模型RoutingKey一般都是由一个或多个单词组成，多个单词以“.”分割，例如：item.insert

　　

　　

生产者：

public class Provider {
    public static void main(String[] args) throws IOException {
        Connection connection = rabbitMQUtils.getConnection();
        Channel channel = connection.createChannel();
        channel.exchangeDeclare("topics","topic");
        String routingkey="user.save.delete";
        channel.basicPublish("topics",routingkey,null,("这里是topics动态路由模型,routingkey["+routingkey+"]").getBytes());
        rabbitMQUtils.connectionAndchannelClose(connection,channel);
    }
}

消费者1：

public class Customer1 {
    public static void main(String[] args) throws IOException {
        Connection connection = rabbitMQUtils.getConnection();
        Channel channel = connection.createChannel();
        channel.exchangeDeclare("topics","topic");
        String queue = channel.queueDeclare().getQueue();
        channel.queueBind(queue,"topics","user.*");
        channel.basicConsume(queue,true,new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                super.handleDelivery(consumerTag, envelope, properties, body);
                System.out.println("消费者-1"+new String(body));
            }
        });
    }
}

消费者2：

public class Customer2 {
    public static void main(String[] args) throws IOException {
        Connection connection = rabbitMQUtils.getConnection();
        Channel channel = connection.createChannel();
        channel.exchangeDeclare("topics","topic");
        String queue = channel.queueDeclare().getQueue();
        channel.queueBind(queue,"topics","user.#");
        channel.basicConsume(queue,true,new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                super.handleDelivery(consumerTag, envelope, properties, body);
                System.out.println("消费者-2"+new String(body));
            }
        });
    }
}