Spring Boot 基于 SCRAM 认证集成 Kafka 的过程详解

<dependency>
    <groupId>org.springframework.kafka</groupId>
    <artifactId>spring-kafka</artifactId>
</dependency>

spring:  
  kafka:  
    bootstrap-servers: localhost:9092  
    properties:  
      security.protocol: SASL_PLAINTEXT  
      sasl.mechanism: SCRAM-SHA-256 
      sasl.jaas.config: org.apache.kafka.common.security.scram.ScramLoginModule required username="your_username" password="your_password";
    consumer:
      group-id: test-consumer-group
      auto-offset-reset: earliest
      properties:
        sasl.jaas.config: org.apache.kafka.common.security.scram.ScramLoginModule required username="test" password="test";
    producer:
      key-serializer: org.apache.kafka.common.serialization.StringSerializer
      value-serializer: org.apache.kafka.common.serialization.StringSerializer

@Configuration
public class KafkaConfig {
    @Bean
    public KafkaAdminClient kafkaAdminClient(KafkaAdmin kafkaAdmin) {
        return (KafkaAdminClient) KafkaAdminClient.create(kafkaAdmin.getConfigurationProperties());
    }
}

/**
 * 创建用户
 */
public void createUser(String userName, String password) throws ExecutionException, InterruptedException {
    // 构造Scram认证机制信息
    ScramCredentialInfo info = new ScramCredentialInfo(ScramMechanism.SCRAM_SHA_256, 8192);
    //用户信息
    UserScramCredentialAlteration userScramCredentialAdd = new UserScramCredentialUpsertion(userName, info, password);
    AlterUserScramCredentialsResult result = kafkaAdminClient.alterUserScramCredentials(List.of(userScramCredentialAdd));
    result.all().get();
}
/**
 * 配置用户只读权限
 */
public void createAcl(String account, String topicName, String consumerGroup) {
    AclBinding aclBindingTopic = genAclBinding(account, ResourceType.TOPIC, topicName, AclOperation.READ);
    AclBinding aclBindingGroup = genAclBinding(account, ResourceType.GROUP, consumerGroup, AclOperation.READ);
    kafkaAdminClient.createAcls(List.of(aclBindingTopic, aclBindingGroup));
}

public void createTopic(String topicName, int partitions, short replicationFactor) throws ExecutionException, InterruptedException {
    NewTopic newTopic = new NewTopic(topicName, partitions, replicationFactor);
    CreateTopicsResult result = kafkaAdminClient.createTopics(List.of(newTopic));
    result.all().get();
}

@Service
public class KafkaProducer {
    private final KafkaTemplate<String, String> kafkaTemplate;
    public KafkaProducer(KafkaTemplate<String, String> kafkaTemplate) {
        this.kafkaTemplate = kafkaTemplate;
    }
    public void sendMessage(String message) {
        kafkaTemplate.send("test", message);
    }
}

@Service
public class KafkaConsumer {
    @KafkaListener(topics = "test", groupId = "test-consumer-group")
    public void consume(String message) {
        System.out.println("Received message: " + message);
    }
}