我正在尝试在Spring boot kafa中实现错误处理。在我的Kafka监听器中,我抛出了如下的运行时异常:
@KafkaListener(topics= "Kafka-springboot-example", groupId="group-employee-json")
public void consumeEmployeeJson(Employee employee) {
logger.info("Consumed Employee JSON: "+ employee);
if(null==employee.getEmployeeId()) {
throw new RuntimeException("failed");
//throw new ListenerExecutionFailedException("failed");
}
}
并且我已经按照以下配置错误处理:
@Configuration
@EnableKafka
public class KafkaConfiguration {
@Bean
public ConcurrentKafkaListenerContainerFactory<Object, Object> containerFactory(
ConcurrentKafkaListenerContainerFactoryConfigurer configurer,
ConsumerFactory<Object, Object> kafkaConsumerFactory,
KafkaTemplate<Object, Object> template){
ConcurrentKafkaListenerContainerFactory<Object, Object> factory= new ConcurrentKafkaListenerContainerFactory<>();
configurer.configure(factory, kafkaConsumerFactory);
factory.setErrorHandler(new SeekToCurrentErrorHandler(
new DeadLetterPublishingRecoverer(template)));
return factory;
}
}
我的DLT侦听器如下:
@KafkaListener(topics= "Kafka-springboot-example.DLT", groupId="group-employee-json")
public void consumeEmployeeErrorJson(Employee employee) {
logger.info("Consumed Employee JSON frpm DLT topic: "+ employee);
}
但是我的消息没有发布到DLT主题。
知道我在做什么错吗?
编辑:
application.properties
server.port=8088
#kafka-producer-config
spring.kafka.producer.bootstrap-servers=localhost:9092
spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.StringSerializer
spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer
#Kafka consumer properties
spring.kafka.consumer.bootstrap-servers=localhost:9092
spring.kafka.consumer.group-id=group-employee-json
spring.kafka.consumer.key-deserializer=org.apache.kafka.common.serialization.StringDeserializer
spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer
spring.kafka.consumer.properties.spring.json.trusted.packages=*
public ConcurrentKafkaListenerContainerFactory<Object, Object> containerFactory(
如果为容器工厂使用非标准bean名称,则需要在@KafkaListener
属性的containerFactory
上进行设置。
默认bean名称是kafkaListenerContainerFactory
,它由Boot自动配置。您需要覆盖该bean或将侦听器配置为指向您的非标准bean名称。