SpringBoot-整合kafka

最新推荐文章于 2025-04-20 14:00:00 发布

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最新推荐文章于 2025-04-20 14:00:00 发布

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kafka介绍

首先kafka是一种消息中间件，通过topic区分不同的消息队列，如下为生产者与消费者的配置参数，同一个group只有一个消费者可以接受到消息

  kafka:
    producer:
      bootstrap-servers: 10.212.130.44:19092,10.212.130.46:19092,10.212.130.47:19092
      key-serializer: org.apache.kafka.common.serialization.StringSerializer
      value-serializer: org.apache.kafka.common.serialization.StringSerializer
    consumer:
      group-id: configuersys
      bootstrap-servers: 10.212.130.44:19092,10.212.130.46:19092,10.212.130.47:19092
      key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
      value-deserializer: org.apache.kafka.common.serialization.StringDeserializer
      enable-auto-commit: true

配置maven依赖

        <dependency>
            <groupId>org.springframework.kafka</groupId>
            <artifactId>spring-kafka</artifactId>
            <version>2.2.1.RELEASE</version>
        </dependency>

配置kafkalistener监听多个kafka消息

springboot通过申明@Kafkalistener(topics={"XXXX","XXXX"})，就可完成监听的注入

import com.bdcloud.websocket.WebSocketHandler;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.stereotype.Component;

@Component
public class DualWithKafka {

    private static final Logger logger = LoggerFactory.getLogger(DualWithKafka.class);

    @Value("${kafatopics}")
    private String[] kafatopics;

    @KafkaListener(topics = {"#{'${kafatopics}'.split(',')}"})
    private void receiverBroadCast(ConsumerRecord<String, String> record) throws Exception{

        WebSocketHandler.sendMessage2Jsp(record);
    }

    @KafkaListener(topics = {"IM_CONSSRPRECEVAL"})
    private void receiverBroadCast2(ConsumerRecord<String, String> record) throws Exception{

        WebSocketHandler.sendMessage2Jsp(record);
    }
}

对应的kafatopics在application.xml中的配置如下:

kafatopics: IM_STASERVSTAT,IM_SUNLIGHT,IM_SSRCLKORBNUM,IM_SATSSRPRECEVAL,IM_SSR_SNDALARM_EMAIL,IM_SSRCASTEVAL,IM_SOFTSTAT,IM_SATLLH,IM_BDSSR,IM_SYSSTAT,IM_SSREVALALARM