springboot消费kafka Listener method could not be invoked with the incoming message

最新推荐文章于 2023-07-04 17:00:30 发布

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最新推荐文章于 2023-07-04 17:00:30 发布

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#java #后端 #kafka

本文介绍了在使用SpringBoot集成Kafka处理MySQL CDC消息时遇到的一个问题，当MySQL删除记录时，Kafka监听器方法无法被调用，报错'Listener method could not be invoked with the incoming message'。原因是MySQL删除操作导致Kafka产生了两个消息，第一个正常，第二个为空。解决方法是在监听器中处理这种情况。

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bug背景：使用mysql cdc kafka 处理消息，当mysql删除一条记录时会触发此bug
错误信息：

org.springframework.kafka.listener.ListenerExecutionFailedException: Listener method could not be invoked with the incoming message
Endpoint handler details:
Method [public void com.flex.notify.listener.NotifyListener.preOrder(java.lang.String)]
Bean [com.flex.notify.listener.NotifyListener@ce6cd62]; nested exception is org.springframework.messaging.handler.annotation.support.MethodArgumentNotValidException: Could not resolve method parameter at index 0 in public void com.flex.notify.listener.NotifyListener.preOrder(java.lang.String): 1 error(s): [Error in object 'message': codes []; arguments []; default message [Payload value must not be empty]] , failedMessage=GenericMessage [payload=org.springframework.kafka.support.KafkaNull@4e24013e, headers={
   kafka_offset=1807, kafka_consumer=org.apache.kafka.clients.consumer.KafkaConsumer@852319e, kafka_timestampType=CREATE_TIME, kafka_receivedPartitionId=0, kafka_receivedMessageKey={
   "schema":{
   "type":"struct","fields":[{
   "type":"string","optional":false,"default":"","field":"id"}],"optional":false,"name":"debezium_connector.flex.pre_order.Key"

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