SpringAMQP基本使用(无交换机)

进阶使用（转载）：https://blog.csdn.net/wdcl2468/article/details/94228716
1.docker开启rabbitMQ

docker pull rabbitmq
docker run -d -p 15672:15672  -p  5672:5672  -e RABBITMQ_DEFAULT_USER=admin -e RABBITMQ_DEFAULT_PASS=admin --name rabbitmq --hostname=rabbitmqhostone  rabbitmq:latest

2.父工程引入依赖

        
        
            org.springframework.boot
            spring-boot-starter-amqp
        

并在子工程的yml中进行相关配置

spring:
  rabbitmq:
    host: localhost
    port: 5672
    virtual-host: /
    username: root
    password: 123456
    listener:
      simple:
        prefetch: 3 #指消费者最多能预取的消息数，相当于先从mq中拿再慢慢处理，服务器的性能越高该数值越大

3.发送者类中加入RabbitTemplate并发送消息到队列中(前提是已经在rabbitMQ的控制台中新建类这个队列)

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

    @Test
    public void sendMessage() {
        String queueName = "simple.queue";
        String message = "another msg in simple";
        rabbitTemplate.convertAndSend(queueName, message);
    }
}

4.接受者使用@RabbitListener(queues = "队列名")监听队列

@Component
public class SpringRabbitListener {

    @RabbitListener(queues = "simple.queue")
    public void listenSimpleQueue(String msg) {
        System.out.println("what receive is :"+msg);
    }
}