can subscribe more than one topics in one consumer ?

[francisoliverlee]

for now , one consumer can sub one topic by @RocketMQMessageListener

@Service
@RocketMQMessageListener(topic = "${demo.rocketmq.topic}", consumerGroup = "string_consumer", selectorExpression = "${demo.rocketmq.tag}", tlsEnable = "${demo.rocketmq.tlsEnable}")
public class StringConsumer implements RocketMQListener<String> {
    @Override
    public void onMessage(String message) {
        System.out.printf("------- StringConsumer received: %s \n", message);
    }
}

i tried two consumer class sub one topic, only one topic works and found why :

hope to support more than one topic for consumers

[qq649208085]

the same question

[MrZbb]

可以声明两个rocketmqlistener，指定不同的consumer group跟topic

[mufengCc]

一个消费者是可以同时订阅多个topic 的。详情查看官方文档，订阅关系：https://rocketmq.apache.org/zh/docs/4.x/bestPractice/07subscribe#13-%E8%AE%A2%E9%98%85%E5%A4%9A%E4%B8%AAtopic%E4%B8%94%E8%AE%A2%E9%98%85%E5%A4%9A%E4%B8%AAtag

代码示例如下：