【RocketMQ】消息过滤-TAG标签过滤

最新推荐文章于 2025-03-03 11:58:13 发布

Bandeo

最新推荐文章于 2025-03-03 11:58:13 发布

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分类专栏： RocketMQ

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import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
import org.apache.rocketmq.client.consumer.listener.MessageListenerConcurrently;
import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.common.message.MessageExt;
import java.util.List;
public class Consumer {
    public static void main(String[] args) throws MQClientException {
        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("tagFilterGroup");
        consumer.setNamesrvAddr("192.168.197.126:9876;192.168.197.123:9876");
        //这里设置消息消费，只消费tag为tag1或者tag2的消息
        consumer.subscribe("tagFilterTopic","tag1 || tag2");
        consumer.registerMessageListener(new MessageListenerConcurrently() {
            @Override
            public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> list, ConsumeConcurrentlyContext consumeConcurrentlyContext) {
                for (MessageExt messageExt : list) {
                    System.out.println("收到消息->"+new String(messageExt.getBody()));
                }
                return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
            }
        });
        consumer.start();
    }
}