1、环境约束

win10 64位操作系统
idea2018.1.5
maven-3.0.5
jdk-8u162-windows-x64

2、前提约束

完成springboot创建web项目 https://www.jianshu.com/p/de979f53ad80
注意，作者使用的springboot版本是2.1.8.RELEASE
完成安装kafka，并启动，且创建队列test
https://www.jianshu.com/p/1a7b9970d073

2、操作步骤

加入依赖

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

修改配置文件

server.port=8080
spring.kafka.bootstrap-servers=localhost:9092
# 指定默认消费者group id
spring.kafka.consumer.group-id=group-id

创建生产者

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

@RestController
public class Producer {
    @Autowired
    private KafkaTemplate kafkaTemplate;

    @GetMapping("/send/{msg}")
    public void sendlog(@PathVariable("msg")String msg){

        kafkaTemplate.send("test",msg);

    }
}

创建消费者

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

@Component
public class Consumer {
    @KafkaListener(topics = {"test"})
    public  void consumer(ConsumerRecord consumerRecord){
        Object value = consumerRecord.value();
        System.out.println(value);
    }
}