RabbitMQ路由模式

模型

路由模式与发布订阅模式非常相似，但是路由模式增加了路由键的配置，生产者在发送消息到交换机的时候会指定一个routingKey，用于匹配队列，同时队列绑定到交换机时也会指定routingKey，交换机在向队列发送消息时，会根据routingKey来匹配。

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，路由模式
		channel.exchangeDeclare(EXCHANGE_NAME, "direct");
		//发送消息到交换机
		channel.basicPublish(EXCHANGE_NAME, ROUTE_KEY, null, "exchange data route key。。。。".getBytes());
		channel.close();
		conn.close();
	}
}

channel.exchangeDeclare(EXCHANGE_NAME, “direct”),声明交换机的时候direct说明使用路由模式，发送消息的时候指定routingKey。

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);
	}
}

绑定到交换机的时候指明routingKey

从web页面可以看到申明的交换机是direct模式

同时绑定到交换机上的队列是否有routingKey