kafka入门（3）- SpringBoot集成Kafka

1、引入依赖

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

2、application配置

spring.kafka.bootstrap-servers=192.168.1.107:9092
spring.kafka.consumer.group-id=myGroup
spring.kafka.consumer.key-deserializer=org.apache.kafka.common.serialization.StringDeserializer
spring.kafka.consumer.value-deserializer=org.apache.kafka.common.serialization.StringDeserializer
spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.StringSerializer
spring.kafka.producer.value-serializer=org.apache.kafka.common.serialization.StringSerializer

3、写消息

@Component
public class Sender {
    @Autowired
    private KafkaTemplate kafkaTemplate;
    private Gson gson = new GsonBuilder().create();

    public void sendMessage(){
        Message m = new Message();
        m.setId(System.currentTimeMillis());
        m.setMsg(UUID.randomUUID().toString());
        m.setSendTime(new Date());
        kafkaTemplate.send("test1", gson.toJson(m));
    }
}

4、读消息

@Component
public class Receiver {

    private Gson gson = new GsonBuilder().create();

    @KafkaListener(topics = "test1")
    public void processMessage(String content) {
        Message m = gson.fromJson(content, Message.class);
        System.out.println(m.getMsg());
    }
}