春季启动嵌入kafka抛出错误BeanCreationException

Question

我有一个测试用例，配置了以下kafka属性：

@ExtendWith(SpringExtension.class)
@SpringBootTest(classes = {Application.class})
@ActiveProfiles("test")
@EnableConfigurationProperties
@EmbeddedKafka(controlledShutdown = true, topics = {"topic1", "topic2", "topic3"})
class Name {}

这是我在运行上面的测试用例时得到的构建错误：

Application run failed 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'embeddedKafka': Invocation of init method failed; nested exception is java.lang.NoSuchFieldError: DEFAULT_SASL_ENABLED_MECHANISMS
Caused by: java.lang.NoSuchFieldError: DEFAULT_SASL_ENABLED_MECHANISMS
at kafka.server.Defaults$.<clinit>(KafkaConfig.scala:242)
at kafka.server.KafkaConfig$.<clinit>(KafkaConfig.scala:961)
at kafka.server.KafkaConfig.LogDirProp(KafkaConfig.scala)
at org.springframework.kafka.test.EmbeddedKafkaBroker.afterPropertiesSet(EmbeddedKafkaBroker.java:322)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1853)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1790)
... 72 common frames omitted

这是带有弹簧kafka&kafka客户端依赖可能导致错误：

<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka</artifactId>
<version>2.7.7</version>
<exclusions>
<exclusion>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
<version>3.0.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka-test</artifactId>
<version>2.7.7</version>
<scope>test</scope>
</dependency>

解决方案：请参阅此链接：https://docs.spring.io/spring-kafka/docs/current/reference/html/#update-deps

<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka</artifactId>
<version>2.7.7</version>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka-test</artifactId>
<version>2.7.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
<version>2.8.1</version>
</dependency>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
<version>2.8.1</version>
<classifier>test</classifier>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka_2.13</artifactId>
<version>2.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka_2.13</artifactId>
<version>2.8.1</version>
<classifier>test</classifier>
<scope>test</scope>
</dependency>
```

Answer 1

spring-Kafka版本与Apache Kafka客户端3.0不兼容。您仍然需要2.8和Spring Boot2.6。

另一方面，即使使用较新的代理，也不需要较新的客户端。虽然这个故事是关于嵌入式测试的，所以我完全怀疑你是否需要担心任何客户端，除非它是从Spring for Apache Kafka…