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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 {@Autowiredprivate UserService userService;@Overridepublic 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 {@Autowiredprivate UserService userService;@Overridepublic 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)