1.1 搭建SpringBoot环境

我们选择基于Spring-Rabbit去操作RabbitMQ

https://github.com/spring-projects/spring-amqp
使用spring-boot-starter-amqp会自动添加spring-rabbit依赖，

1.2配置

1、配置application.yml
配置连接rabbitmq的参数

server:
  port: 44000
spring:
  application:
    name: test‐rabbitmq‐consumer
  rabbitmq:
    host: 127.0.0.1
    port: 5672
    username: guest
    password: guest
    virtualHost: /

2、定义RabbitConfig类，配置Exchange、Queue、及绑定交换机。
本例配置Topic交换机。

@Configuration
public class RabbitConfig {
    public static final String QUEUE_INFORM_EMAIL = "queue_inform_email";
    public static final String QUEUE_INFORM_SMS = "queue_inform_sms";
    public static final String EXCHANGE_TOPICS_INFORM="exchange_topics_inform";
    public static final String ROUTINGKEY_EMAIL="inform.#.email.#";
    public static final String ROUTINGKEY_SMS="inform.#.sms.#";

    //声明交换机
    @Bean(EXCHANGE_TOPICS_INFORM)
    public Exchange EXCHANGE_TOPICS_INFORM(){
        //durable(true) 持久化，mq重启之后交换机还在
        return ExchangeBuilder.topicExchange(EXCHANGE_TOPICS_INFORM).durable(true).build();
    }

    //声明QUEUE_INFORM_EMAIL队列
    @Bean(QUEUE_INFORM_EMAIL)
    public Queue QUEUE_INFORM_EMAIL(){
        return new Queue(QUEUE_INFORM_EMAIL);
    }
    //声明QUEUE_INFORM_SMS队列
    @Bean(QUEUE_INFORM_SMS)
    public Queue QUEUE_INFORM_SMS(){
        return new Queue(QUEUE_INFORM_SMS);
    }
     // 每个消费者监听自己的队列，并且设置routingkey。
    //生产者将消息发给交换机，由交换机根据routingkey来转发消息到指定的队列
    //ROUTINGKEY_EMAIL队列绑定交换机，指定routingKey
    @Bean
    public Binding BINDING_QUEUE_INFORM_EMAIL(@Qualifier(QUEUE_INFORM_EMAIL) Queue queue,
                                              @Qualifier(EXCHANGE_TOPICS_INFORM) Exchange exchange){
        return BindingBuilder.bind(queue).to(exchange).with(ROUTINGKEY_EMAIL).noargs();
    }
    //ROUTINGKEY_SMS队列绑定交换机，指定routingKey
    @Bean
    public Binding BINDING_ROUTINGKEY_SMS(@Qualifier(QUEUE_INFORM_SMS) Queue queue,
                                          @Qualifier(EXCHANGE_TOPICS_INFORM) Exchange exchange){
        return BindingBuilder.bind(queue).to(exchange).with(ROUTINGKEY_SMS).noargs();
    }


}

1.3 生产端

@SpringBootTest
@RunWith(SpringRunner.class)
public class Producer04_topics_Boot {
    @Autowired
    RabbitTemplate rabbitTemplate;

    //使用rabbitTemplate发送消息
    @Test
    public void testSendEmail(){

        String message = "send email message to user";
        /**
         * 参数：
         * 1、交换机名称
         * 2、routingKey
         * 3、消息内容
         */
        rabbitTemplate.convertAndSend(RabbitConfig.EXCHANGE_TOPICS_INFORM,"inform.email",message);

    }

1.4消费端

目录结构与生产者一样

使用@RabbitListener注解监听队列。

@Component
public class ReceiveHandler {

    @RabbitListener(queues = {RabbitConfig.QUEUE_INFORM_EMAIL})
    public void emil(String msg, Message message , Channel channel){
        System.out.println(msg);
    }
}