springboot整合rocketmq，快速上手消息队列

springboot整合rocketmq，快速上手消息队列

关于springboot和rocketmq相信大家都有了解，这里直接介绍整合的方法。

这里提前下载好rocketmq的源码并运行，个人比较推荐去github直接clone代码，然后idea导入并运行，好处就是可以学习源码，并且支持debug调试，github地址如下，因为官方有教程，这里就直接跳过安装。

https://github.com/apache/rocketmq.git

打开idea，自行创建两个模块的springboot项目，一个生产者，一个消费者。

生产者的配置：

rocketmq:
  name-server: localhost:9876
  producer:
    group: my-group
server:
  port: 8081

这里填写自己真实的name-server地址和端口。
导入maven dependency，目前版本为2.0.1。

   org.apache.rocketmq
    rocketmq-spring-boot-starter
    2.0.1

启动类代码：

@SpringBootApplication
public class SpringBootRocketmqProducerApplication implements CommandLineRunner {

    @Resource
    private RocketMQTemplate rocketMQTemplate;

    public static void main(String[] args) {
        SpringApplication.run(SpringBootRocketmqProducerApplication.class, args);
    }

    @Override
    public void run(String... args) throws Exception {
        rocketMQTemplate.convertAndSend("test-topic-1", "Hello, World!");

        rocketMQTemplate.convertAndSend("test-topic-2",
                new OrderPaidEvent("orderId-0001", 88));
    }
}

@Data
@AllArgsConstructor
class OrderPaidEvent implements Serializable {

    private String orderId;

    private Integer paidMoney;
}

这里还是挺简单的，直接实现CommandLineRunner这个接口，复写run方法即可，然后注册RocketMQTemplate，就可以生产消息了。

消费者的配置

rocketmq:
  name-server: localhost:9876
server:
  port: 8082

name-server地址同生产者
导入maven dependency，目前版本为2.0.1。

   org.apache.rocketmq
    rocketmq-spring-boot-starter
    2.0.1

启动类代码

@SpringBootApplication
public class SpringBootRocketmqConsumerApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringBootRocketmqConsumerApplication.class, args);
    }

}

@Slf4j
@Service
@RocketMQMessageListener(topic = "test-topic-1", consumerGroup = "my-consumer_test-topic-1")
class MyConsumer1 implements RocketMQListener<String> {

    @Override
    public void onMessage(String message) {
        log.info("received message: {}", message);
    }
}

@Slf4j
@Service
@RocketMQMessageListener(topic = "test-topic-2", consumerGroup = "my-consumer_test-topic-2")
class MyConsumer2 implements RocketMQListener<OrderPaidEvent> {

    @Override
    public void onMessage(OrderPaidEvent orderPaidEvent) {
        log.info("received orderPaidEvent: {}", orderPaidEvent);
    }
}

@Data
@AllArgsConstructor
class OrderPaidEvent implements Serializable {

    private String orderId;

    private Integer paidMoney;
}

最后依次启动消费者和生产者，就可以看见消费者控制台打印出如下日志表示消息消费成功。

2019-01-22 15:57:34.516  INFO 6368 --- [MessageThread_1] c.w.s.MyConsumer1                        : received message: Hello, World!
2019-01-22 15:57:34.667  INFO 6368 --- [MessageThread_1] c.w.s.MyConsumer2                        : received orderPaidEvent: OrderPaidEvent(orderId=orderId-0001, paidMoney=88)

参考和github链接：

https://github.com/apache/rocketmq-spring