Kafka结合springboot的简单运用

kafka作用类似于rabbitMQ

一、添加依赖
< dependency>
< groupId>org.springframework.kafka</ groupId>
< artifactId>spring-kafka</ artifactId>
< version>2.2.5.RELEASE</ version>
</ dependency>

二、application.yml的配置
spring:
kafka:
bootstrap-servers: localhost:9092
consumer:
group-id: mygroup//自命名，监听或者发送时用到

三、生产者发送信息

@Autowired
private KafkaTemplate<String, String> kafkaTemplate;

kafkaTemplate.send(“UserMessage”, “mygroup”,”“你好”);

四、注册消费者
@KafkaListener(topics = “UserMessage”，id=“mygroup”)
public void listen(ConsumerRecord<?,String> record) {
String value = record.value(); //value的值是你好
});