RocketMQ 简单介绍
阿里云rockerMq 4.x和5.x集成
一、云平台创建实例
参考文档:
阿里云api
阿里云 创建实例
二、skd集成思路
公司用的RocketMQ一般是自建开源apache的RocketMQ和上阿里云的RocketMQ,目前阿里云支持4.x和5.x版本
项目集成思路:
1、集成阿里RocketMQ 两个版本 4.x和5.x 支持版本配置和开源apache的RocketMQ集成
2、RocketProperties 单配置适用多版本集成
3、RocketConsumer 消费者注解,支持多版本集成(消费组监听器继承实现可以不一样,注解一致)
4、RocketMessageProducer 生产者接口,支持多版本集成,根据配置版本自动适配
注:这个是一个持续集成优化过程,需要不停磨练
三、根据RocketConsumer注解,动态监听器实现
1、核心逻辑代码:
扫描包注解,根据配置版本号走不同的,消费组创建
String packageName = properties.getPackageName(); // 扫描包路径
ClassPathScanningCandidateComponentProvider scanner = new ClassPathScanningCandidateComponentProvider(false);
scanner.addIncludeFilter(new AnnotationTypeFilter(RocketConsumer.class));
Set<BeanDefinition> candidates = scanner.findCandidateComponents(packageName);
for (BeanDefinition beanDefinition : candidates) {
try {
Integer versions = properties.getVersions();
if (Objects.equals(RockerMqVersions.ALI_4.getCode(), versions)) {
onsRocketMQConsumerClient.start(beanDefinition);
}
if (Objects.equals(RockerMqVersions.ALI_5.getCode(), versions)) {
rocketMQConsumerClient.start(beanDefinition);
}
} catch (Exception e) {
e.printStackTrace();
}
}
2、消费组push 用法示例
版本4.x 写法
@Slf4j
@Component
@RocketConsumer(topic = "PRODUCER_TOPIC", consumerGroup = "PRODUCER_GROUP")
public class Push4MQConsumer implements MessageListener {
@Autowired
private UserService userService;
@Override
public Action consume(Message message, ConsumeContext consumeContext) {
String body = new String(message.getBody());
log.info("TestMQConsumer:" + body + "user:" + userService.getUserId());
return Action.CommitMessage;
}
}
版本5.x 写法
@Slf4j
@Component
@RocketConsumer(topic = "PRODUCER_TOPIC", consumerGroup = "PRODUCER_GROUP")
public class TestMQConsumer implements MessageListener {
@Autowired
private UserService userService;
@Override
public ConsumeResult consume(MessageView messageView) {
String body = StandardCharsets.UTF_8.decode(messageView.getBody()).toString();
log.info("TestMQConsumer:" + body + "user:" + userService.getUserId());
return ConsumeResult.SUCCESS;
}
}
五、RocketMessageProducer 生产发送
目前只写5.x 写法,后面持续优化
普通消息
RocketMsg rocketMsg = new RocketMsg();
rocketMsg.setBody("hxl测试发送");
rocketMessageProducer.sendMessage("PRODUCER_TOPIC", null, rocketMsg);
return ApiResult.success();
延迟消息
RocketMsg rocketMsg = new RocketMsg();
rocketMsg.setBody("延迟消息发送发送");
rocketMessageProducer.sendMessage("DELAY_TOPIC", null, 5 * 60L, rocketMsg);
# github 地址:
[https://github.com/sanxiaoshitou/tower-boot](https://github.com/sanxiaoshitou/tower-boot)