Spring cloud 使用 RabbitMq 05 发布与订阅

主题模式key使用xx.xx这种 #表示任意 1.使用注解@RabbitListener   @QueueBinding同时完成路由交换机的创建与绑定监听

@Component
public class MqListener {
    @RabbitListener(queues = "xzh")
    public void listenXzhQueue(String mess){
        System.out.println("mq消费消息："+mess);
    }
    @RabbitListener(queues = "fanout.queue1")
    public void listenFanoutQueue1(String mess){
        System.out.println("fanout1:"+mess);
    }
    @RabbitListener(queues = "fanout.queue2")
    public void listenFanoutQueue2(String mess){
        System.out.println("fanout2:"+mess);
    }
    @RabbitListener(bindings = @QueueBinding(
            value = @Queue("direct.queue1"), //队列
            exchange = @Exchange(value = "direct",type = ExchangeTypes.DIRECT), //交换机
            key = {"red","blue"}  //key
    ))
    public void listenDirectQueue1(String mess){
        System.out.println("direct.queue1"+mess);
    }
    @RabbitListener(bindings = @QueueBinding(
            value = @Queue("direct.queue2"),
            exchange = @Exchange(value = "direct",type = ExchangeTypes.DIRECT),
            key = {"red","yellow"}
    ))
    public void listenDirectQueue2(String mess){
        System.out.println("direct.queue2"+mess);
    }
    @RabbitListener(bindings = @QueueBinding(
            value = @Queue("topic.queue1"), //队列
            exchange = @Exchange(value = "topic",type = ExchangeTypes.TOPIC), //交换机
            key = "china.#"  //key #表示通配符
    ))
    public void listenTopicQueue1(String mess){
        System.out.println("topic.queue1"+mess);
    }
}

 2.运行程序注册主题模式交换机以队列

绑定关系

 3.publisher测试类发布消息

    @Test
    public void topicTest(){
        //交换机名字
        String exchangeName="topic";
        //消息
        String mess="中国天气现在真好";
        rabbitTemplate.convertAndSend(exchangeName,"china.xx",mess);
    }

 结果：

4.总结： 主题模式类似路由模式，唯一区别不同就是key命名规范，以及可以使用#表示通配符，所以叫主题模式。