RabbitMQ Topic模式

模型：

与路由模式类似，但是路由模式是精确匹配，而Topic模式是可以模糊匹配。

使用通配符#，*
#表示匹配0个或多个
*表示匹配1个

生产者

public class Provider {

	private static final String EXCHANGE_NAME="my_exchange";
	private static final String ROUTE_KEY = "my_route";
	public static void main(String[] args) throws Exception {
		Connection conn = RabbitMqUtil.getConnection();
		Channel channel = conn.createChannel();
		//声明交换机，指明分发类型
		channel.exchangeDeclare(EXCHANGE_NAME, "topic");
		//发送消息到交换机
		channel.basicPublish(EXCHANGE_NAME, ROUTE_KEY, null, "exchange data route key topic。。。。".getBytes());
		channel.close();
		conn.close();
	}
}

声明交换机的时候指明分发类型为topic

消费者

public class Reciver2 {
	private static final String EXCHANGE_NAME = "my_exchange";
	private static final String QUNUE_NAME = "exchange_qunue2";
	private static final String ROUTE_KEY = "my_route.#";
	public static void main(String[] args) throws Exception {
		Connection conn = RabbitMqUtil.getConnection();
		Channel channel = conn.createChannel();
		//声明队列
		channel.queueDeclare(QUNUE_NAME,false,false,false,null);
		//绑定队列到交换机
		channel.queueBind(QUNUE_NAME, EXCHANGE_NAME, ROUTE_KEY);
		//设置每次只发送一条消息
		channel.basicQos(1);
		
		Consumer consumer = new DefaultConsumer(channel) {
			public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
					byte[] body) throws IOException {
				
				String msg = new String(body);
				System.out.println(msg);
			}
		};
		channel.basicConsume(QUNUE_NAME, true, consumer);
	}
}

消费者中绑定到交换机中的时候，routingKey使用通配符模式。
my_route.# 可匹配my_route、my_route.add、my_route.add.add等
my_route.* 可匹配my_route.add my_route.delete等