Springboot集成消息队列kafka demo

1.引入库

        <!-- kafka -->
        <dependency>
            <groupId>org.springframework.kafka</groupId>
            <artifactId>spring-kafka</artifactId>
            <version>2.8.2</version>
        </dependency>

如果启动报错：Error creating bean with name ‘kafkaTemplate‘ defined in class path resource 那就是springboot版本和kafka不兼容 去找对应版本兼容

2.配置文件

代码如下（示例）：

spring.kafka.bootstrap-servers=xxx:9092,xxx:9092,xxx:9092//接入点 kafka的环境ip
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

spring.kafka.consumer.group-id=model  //消费者名字

示例代码

@Component
public class KafkaTest {

    @KafkaListener(topics = "model") //topic的名称
    public void kafkaConsume(String content){

        System.out.println("kafka消息消费："+content);

    }
}