kafka和springboot整合应用

加载依赖

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

yml对应配置

spring:
    kafka:
      bootstrap-servers: sjck-node03:9092,sjck-node03:9093,sjck-node03:9094
      consumer:
        group-id: single-consumer-group

生产者

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class KafkaProducer {

    @Autowired
    private KafkaTemplate kafkaTemplate;

    @RequestMapping("/send")
    public String send(String name){
        kafkaTemplate.send("kafka-action",name);
        return name;
    }

}

消费者

import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.stereotype.Component;

@Component
public class KafkaConsumer {
    @KafkaListener(topics = "kafka-action")
    public void listen(ConsumerRecord<?,String> record){
        String value = record.value();
        System.out.println(value);
        System.out.println(record.toString());
    }
}

springboot项目启动成功，会打印出producer和consumer相关的配置信息

producer请求send接口

http://localhost:8011/send?name=today

today

控制台consumer输出

2019-03-17 18:05:41.155  INFO 84622 --- [nio-8011-exec-1] o.a.kafka.common.utils.AppInfoParser     : Kafka version : 0.10.1.1
2019-03-17 18:05:41.155  INFO 84622 --- [nio-8011-exec-1] o.a.kafka.common.utils.AppInfoParser     : Kafka commitId : f10ef2720b03b247
today
ConsumerRecord(topic = kafka-action, partition = 0, offset = 8, CreateTime = 1552817141215, checksum = 435080069, serialized key size = -1, serialized value size = 5, key = null, value = today)