Kafka事件监听

业务中对Kafka发送的事件成功与否进行监听并做相应逻辑处理。

首先看Kafka的源码

public interface ProducerListener<K, V> {

   /**
    * Invoked after the successful send of a message (that is, after it has been acknowledged by the broker).
    * @param producerRecord the actual sent record
    * @param recordMetadata the result of the successful send operation
    */
   default void onSuccess(ProducerRecord<K, V> producerRecord, RecordMetadata recordMetadata) {
      onSuccess(producerRecord.topic(), producerRecord.partition(),
            producerRecord.key(), producerRecord.value(), recordMetadata);
   }

   /**
    * Invoked after the successful send of a message (that is, after it has been acknowledged by the broker).
    * If the method receiving the ProducerRecord is overridden, this method won't be called
    * @param topic the destination topic
    * @param partition the destination partition (could be null)
    * @param key the key of the outbound message
    * @param value the payload of the outbound message
    * @param recordMetadata the result of the successful send operation
    */
   default void onSuccess(String topic, Integer partition, K key, V value, RecordMetadata recordMetadata) {
   }

   /**
    * Invoked after an attempt to send a message has failed.
    * @param producerRecord the failed record
    * @param exception the exception thrown
    */
   default void onError(ProducerRecord<K, V> producerRecord, Exception exception) {
      onError(producerRecord.topic(), producerRecord.partition(),
            producerRecord.key(), producerRecord.value(), exception);
   }

   /**
    * Invoked after an attempt to send a message has failed.
    * If the method receiving the ProducerRecord is overridden, this method won't be called
    * @param topic the destination topic
    * @param partition the destination partition (could be null)
    * @param key the key of the outbound message
    * @param value the payload of the outbound message
    * @param exception the exception thrown
    */
   default void onError(String topic, Integer partition, K key, V value, Exception exception) {
   }

   /**
    * Return true if this listener is interested in success as well as failure.
    * @deprecated the result of this method will be ignored.
    * @return true to express interest in successful sends.
    */
   @Deprecated
   default boolean isInterestedInSuccess() {
      return false;
   }

}

实现上述接口 

public class LoggingProducerListener<K,V> implements ProducerListener<K,V>{
    protected Logger logger = LogManager.getLogger(getClass());
    @Autowired private JdbcTemplate jdbcTemplate;

    @Override public void onSuccess(String topic, Integer partition, K key, V value,
        RecordMetadata recordMetadata) {
        //发送成功
    }

    @Override
    public void onError(String topic, Integer partition, K key, V value, Exception exception) {
        //发送失败
    }

}

使用 

 只需要配置JavaConfig Bean即可

@Bean
public ProducerListener producerListener() {
    return new LoggingProducerListener();
}