pom 依赖

 <dependency>
            <groupId>org.springframework.kafka</groupId>
            <artifactId>spring-kafka</artifactId>
            <version>2.2.7.RELEASE</version>
        </dependency>

yml文件配置

kafka:
    bootstrap-servers: 172.31.209.90:9092 #(kafka生产集群ip+port端口)
    producer:
      buffer-memory: 40960
      retries: 0
      batch-size: 4096
      properties:
        linger.ms: 1
    consumer:
      enable-auto-commit: true #(是否自动提交)
      auto-commit-interval: 100ms
      auto-offset-reset: latest #(实时生产，实时消费，不会从头开始消费)
      group-id: test #(消费组)
      key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
      value-deserializer: org.apache.kafka.common.serialization.StringDeserializer

监听器

Slf4j
@Component
public class EhrAgreementListener {
   @KafkaListener(topics = {"annul"}, groupId = "myContainer2")
    public void annul1(ConsumerRecord<String, String> record) {
        log.info("groupId = myContainer2, message = " + record.toString());
    }

    @KafkaListener(topics = {"signed"}, groupId = "myContainer2")
    public void signed2(ConsumerRecord<String, String> record) {
        log.info("groupId = myContainer2, message = " + record.toString());
    }

}

新建个controller 写个方法，项目启动直接成功
@Autowired
private KafkaTemplate kafkaTemplate;

public void sendTest(String msg) {
    kafkaTemplate.send("signed", msg);
}