Spring Boot找不到嵌入式KafkaBroker Bean

Question

我正在為Kafka編寫集成測試。 為此，我正在使用Spring的EmbeddedKafka 。 這是我的課：

@Component
@EmbeddedKafka(
    partitions = 1,
    topics = {"Topic},
    brokerProperties = {"listeners=PLAINTEXT://localhost:9091", "port=9091"})
public class KafkaConsumerTestUtils {
  @Autowired private EmbeddedKafkaBroker embeddedKafka;
  ....
}

我正在用@SpringBootTest注釋的類中自動裝配此utils類。 這是我得到的錯誤：

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.kafka.test.EmbeddedKafkaBroker' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1646)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1205)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1166)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593)
    ... 66 more

奇怪的是，當我在任何測試類中自動裝配EmbeddedKafkaBroker時，它都會被創建並且測試運行良好。

有人可以幫我弄這個嗎？

Answer 1

不確定原因，但您似乎沒有按預期使用它。

@EmbeddedKafka是可以在運行基於Spring Kafka的測試的測試類上指定的注釋。

文檔狀態：

The typical usage of this annotation is like:
 @RunWith(SpringRunner.class)
 @EmbeddedKafka
 public class MyKafkaTests {}