Question

在Kafka的配置下找到服务器 @豆角，扁豆 public ConsumerFactory ConsumerFactory（）{ 地图配置= new HashMap <>（）;

    config.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, "127.0.0.1:9092");
    config.put(ConsumerConfig.GROUP_ID_CONFIG, "group_id");
    config.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
    config.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);

    return new DefaultKafkaConsumerFactory<>(config);
}


@Bean
public ConcurrentKafkaListenerContainerFactory<String, String> kafkaListenerContainerFactory() {
    ConcurrentKafkaListenerContainerFactory<String, String> factory = new 
    ConcurrentKafkaListenerContainerFactory();
    factory.setConsumerFactory(consumerFactory());
    return factory;
}



here I need to change the topic as a dynamic content
@KafkaListener(topics = "mytopic")
private void consume2(String Data) {
    String userID = null;
    String topic = null;
    String message = null;
    System.out.println(Data);
}

Answer 1

您尝试过类似的事情

@KafkaListener（topics =“ $ {kafka.topics}”）

并将其设置为环境变量或应用程序属性吗？

环境变量KAFKA_TOPICS = mytopic application.properties kafka.topics = mytopic

我如何为Kafka Consumer使用Dynamic主题

1 个答案: