使Kafka主题从spring boot自动创建

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

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

import org.apache.kafka.clients.admin.NewTopic;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class KafkaTopicConfig {

    @Bean
    public NewTopic myTopic() {
        return new NewTopic("my-topic", 3, (short) 1);
    }

}

import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.stereotype.Component;

@Component
public class MyKafkaConsumer {

    @KafkaListener(topics = "my-topic", groupId = "your-consumer-group-id")
    public void consume(String message) {
        // 处理接收到的消息
        System.out.println("Received message: " + message);
    }

}