7.kafka3.x集成springboot

最新推荐文章于 2025-03-14 15:46:52 发布

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最新推荐文章于 2025-03-14 15:46:52 发布

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分类专栏： kafka 文章标签： kafka java 分布式

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kafka集成springboot

引入依赖

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

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

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

添加yaml配置

spring:
  application:
    name: kafka_spring_boot
  kafka:
    bootstrap-servers: node1:9092,node2:9092
    # 生产者相关
    producer:
      # k v 序列化器
      key-serializer: org.apache.kafka.common.serialization.StringSerializer
      value-serializer: org.apache.kafka.common.serialization.StringSerializer
      # ack
      acks: 1
      # 压缩类型
      compression-type: snappy
      # 重试次数
      retries: 3
    # 消费者相关
    consumer:
      group-id: kafka_spring_boot
      key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
      value-deserializer: org.apache.kafka.common.serialization.StringDeserializer

生产者代码核心 org.springframework.kafka.core.KafkaTemplate#send

@RestController
public class SpringKafkaController {

    @Autowired
    private KafkaTemplate<String, String> kafkaTemplate;

    @GetMapping("sendMsg")
    public void sendMsg(String msg) {
        final String topic = "test_topic";
        kafkaTemplate.send(topic, msg);
    }
    
}

消费者代码 @KafkaListener注解

@Configuration
@Slf4j
public class KafkaSpringBootListener {

    @KafkaListener(topics = "test_topic")
    public void consume(String msg) {
        log.info("接受消息:{}", msg);
    }
}