Question

以下是我对kafka侦听器的方法定义，如果接收到有效负载的空字符串或空字符串，我想我将收到错误消息...您能帮忙吗？

 @KafkaListener(topics = "${kafka.consumer-topic-name.reservation}", groupId = "${kafka.consumer-group-id.test}",
        containerFactory = "kafkaListenerContainerFactory",autoStartup = "${kafka.auto-start.consumer.tets}")
public void consumeReservation(String payload, @Header(KafkaHeaders.RECEIVED_TOPIC) String topic,
                               @Header(KafkaHeaders.RECEIVED_MESSAGE_KEY) String kafkaKey) {}

[org.springframework.kafka.KafkaListenerEndpointContainer #0-0-C-1] ERROR o.s.k.l.SeekToCurrentErrorHandler - Backoff none exhausted for ConsumerRecord(topic = test_topic, partition = 0, leaderEpoch = 2, offset = 453473, CreateTime = 1601962346576, serialized key size = 41, serialized value size = -1, headers = RecordHeaders(headers = [RecordHeader(key = OPERATION, value = [68, 69, 76, 69, 84, 69]), RecordHeader(key = __Key_TypeId__, value = [99, 108, 75, 101, 121])], isReadOnly = false), key = {
"orgId": "1",
"orderId": "U4000024004"}, value = null)

org.springframework.kafka.listener.ListenerExecutionFailedException：侦听器方法无法与传入消息一起调用端点处理程序详细信息：方法[public void com.demo.test.analytics.testanalytics.consumer.FLReservationKafkaConsumer.consumeReservation（java.lang.String，java.lang.String，java.lang.String）] Bean [com.demo.test.analytics.testanalytics.consumer.FLReservationKafkaConsumer @ 731702d1]; 嵌套异常是org.springframework.messaging.handler.annotation.support.MethodArgumentNotValidException：无法解析公共void com.demo.test.analytics.testanalytics.consumer.FLReservationKafkaConsumer.consumeReservation（java.lang.String， java.lang.String，java.lang.String）：1个错误：[对象'payload'中的错误：codes []; arguments []; 默认消息[有效负载值不能为空] ]，失败消息= GenericMessage [有效载荷= org.springframework.kafka.support.KafkaNull @ 2d99561c，标头= { Key_TypeId = [B @ 19a2dc5f，kafka_offset = 453473，OPERATION = [B @ 7d75c01a，kafka_consumer = org.apache.kafka.clients.consumer.KafkaConsumer @ 363f44ef，kafka_timestampType = CREATE_TIME = { “ orgId”：“ 1”， “ orderId”：“ U4000024004” }，kafka_receivedTopic = test_1order，kafka_receivedTimestamp = 1601962346576，kafka_groupId = Reservation_group_id }]；嵌套的异常是org.springframework.messaging.handler.annotation.support.MethodArgumentNotValidException：无法解析公共无效com.demo.test.analytics.testanalytics.consumer.FLReservationKafkaConsumer.consumeReservation（java。 .String，java.lang.String，java.lang.String）：1个错误：[对象“有效载荷”中的错误：代码[]；参数[]；默认消息[有效负载值不能为空] ]， failedMessage = GenericMessage [payload = org.springframework.kafka.support.KafkaNull @ 2d99561c，标头= { Key_TypeId = [B @ 19a2dc5f，kafka_offset = 453473，OPERATION = [B @ 7d75c01a，kafka_consumer = org.apache.kafka.clients.consumer.KafkaConsumer @ 363f44ef，kafka_timestampType = CREATE_TIME = { “ orgId”：“ 1”， “ orderId”：“ U4000024004” }，kafka_receivedTopic = test_1order，kafka_receivedTimestamp = 1601962346576，kafka_groupId = Reservation_group_id }] 在org.springframework.kafka.listener.KafkaMessageListenerContainer $ ListenerConsumer.decorateException（KafkaMessageListenerContainer.java：1925）处在org.springframework.kafka.listener.KafkaMessageListenerContainer $ ListenerConsumer.invokeErrorHandler（KafkaMessageListenerContainer.java：1913）在org.springframework.kafka.listener.KafkaMessageListenerContainer $ ListenerConsumer.doInvokeRecordListener（KafkaMessageListenerContainer.java：1812）处在org.springframework.kafka.listener.KafkaMessageListenerContainer $ ListenerConsumer.doInvokeWithRecords（KafkaMessageListenerContainer.java：1739）在org.springframework.kafka.listener.KafkaMessageListenerContainer $ ListenerConsumer.invokeRecordListener（KafkaMessageListenerContainer.java：1636）在org.springframework.kafka.listener.KafkaMessageListenerContainer $ ListenerConsumer.invokeListener（KafkaMessageListenerContainer.java：1366）处在org.springframework.kafka.listener.KafkaMessageListenerContainer $ ListenerConsumer.pollAndInvoke（KafkaMessageListenerContainer.java：1082）在org.springframework.kafka.listener.KafkaMessageListenerContainer $ ListenerConsumer.run（KafkaMessageListenerContainer.java：990）在java.util.concurrent.Executors $ RunnableAdapter.call（Executors.java：511）在java.util.concurrent.FutureTask.run（FutureTask.java：266）在java.lang.Thread.run（Thread.java：748）引起原因：org.springframework.messaging.handler.annotation.support.MethodArgumentNotValidException：无法解析公共void com.demo.test.analytics.testanalytics.consumer.FLReservationKafkaConsumer.consumeReservation（java.lang.String， java.lang.String，java.lang.String）：1个错误：[对象'payload'中的错误：codes []; arguments []; 默认消息[有效负载值不能为空] ] 在org.springframework.messaging.handler.annotation.support.PayloadMethodArgumentResolver.resolveArgument（PayloadMethodArgumentResolver.java：122）在org.springframework.kafka.annotation.KafkaListenerAnnotationBeanPostProcessor $ KafkaNullAwarePayloadArgumentResolver.resolveArgument（KafkaListenerAnnotationBeanPostProcessor.java：901）处在org.springframework.messaging.handler.invocation.HandlerMethodArgumentResolverComposite.resolveArgument（HandlerMethodArgumentResolverComposite.java：117）在org.springframework.messaging.handler.invocation.InvocableHandlerMethod.getMethodArgumentValues（InvocableHandlerMethod.java：148）处在org.springframework.messaging.handler.invocation.InvocableHandlerMethod.invoke（InvocableHandlerMethod.java：116）在org.springframework.kafka.listener.adapter.HandlerAdapter.invoke（HandlerAdapter.java：48）在org.springframework.kafka.listener.adapter.MessagingMessageListenerAdapter.invokeHandler（MessagingMessageListenerAdapter.java：329）在org.springframework.kafka.listener.adapter.RecordMessagingMessageListenerAdapter.onMessage（RecordMessagingMessageListenerAdapter.java：86）处在org.springframework.kafka.listener.adapter.RecordMessagingMessageListenerAdapter.onMessage（RecordMessagingMessageListenerAdapter.java：51）在org.springframework.kafka.listener.KafkaMessageListenerContainer $ ListenerConsumer.doInvokeOnMessage（KafkaMessageListenerContainer.java：1880）在org.springframework.kafka.listener.KafkaMessageListenerContainer $ ListenerConsumer.invokeOnMessage（KafkaMessageListenerContainer.java：1862）在org.springframework.kafka.listener.KafkaMessageListenerContainer $ ListenerConsumer.doInvokeRecordListener（KafkaMessageListenerContainer.java：1799）处 ... 8个通用框架省略

Answer 1

您需要指定不需要有效负载。

@Payload(required = false) String payload, ...

无法使用传入消息来调用侦听器方法，并且对于ConsumerRecord

1 个答案: