Spring Boot (5) 整合 RabbitMQ

RabbitMQ是实现了AMQP(高级消息队列协议)的开源消息中间件，RabbitMQ服务器是用Erlang(面向并发的编程语言)编写的。

RabbitMQ官网下载地址：https://www.rabbitmq.com/download.html

Docker部署则执行如下命令即可

# RABBITMQ_DEFAULT_USER:用户名，RABBITMQ_DEFAULT_PASS:密码 这里修改为自己的即可
docker run -d --name rabbitmq -p 5672:5672 -p 15672:15672 -v `pwd`/rabbitmq/data:/var/lib/rabbitmq --hostname my-rabbit --restart=always -e RABBITMQ_DEFAULT_VHOST=my_vhost -e RABBITMQ_DEFAULT_USER=admin -e RABBITMQ_DEFAULT_PASS=admin rabbitmq:3-management

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

spring:
  # RabbitMQ配置
  rabbitmq:
    host: 127.0.0.1
    port: 5672
    # 填写自己安装rabbitmq时设置的账号密码，默认账号密码为`guest`
    username: admin
    password: admin
    virtual-host: my_vhost # 填写自己的虚拟机名，对应可查看 `127.0.0.1:15672/#/users` 下Admin中的`Can access virtual hosts`信息

@Configuration
public class RabbitConfig {

    public static final String QUEUE_KEY = "hello_world";

    @Bean
    public Queue queue() {
 // durable: true 标识开启消息队列持久化 (队列当中的消息在重启rabbitmq服务的时候还会存在)
 return new Queue(QUEUE_KEY, true);
    }

}

@Slf4j
@Component
public class MsgSender {

    @Autowired
    private AmqpTemplate rabbitTemplate;

    public void send() {
 String msgContent = "Hello World ~";
 log.info("生产者发送消息 : " + msgContent);
 this.rabbitTemplate.convertAndSend(RabbitConfig.QUEUE_KEY, msgContent);
    }

}

@Slf4j
@Component
@RabbitListener(queues = RabbitConfig.QUEUE_KEY)
public class MsgReceiver {

    @RabbitHandler
    public void process(String msg) {
 log.info("消费者接收消息 : " + msg);
    }

}

@RestController
public class RabbitController {

    @Autowired
    private MsgSender msgSender;

    @GetMapping(value = "/sendMsg", produces = "application/json;charset=utf-8")
    @ApiOperation(value = "发送消息", httpMethod = "GET", response = ApiResult.class)
    public ApiResult sendMsg() {
 msgSender.send();
 return ApiResult.ok();
    }

}