springboot 1.5.2 集成kafka的简单例子

2021-01-29 12:01Xiao.jf JAVA教程

本篇文章主要介绍了springboot 1.5.2 集成kafka的简单例子，小编觉得挺不错的，现在分享给大家，也给大家做个参考。一起跟随小编过来看看吧

本文介绍了springboot 1.5.2 集成kafka的简单例子，分享给大家，具体如下：

随着spring boot 1.5版本的发布，在spring项目中与kafka集成更为简便。

添加依赖

1	`compile("org.springframework.kafka:spring-kafka:1.1.2.RELEASE")`

添加application.properties

									#kafka

									# 指定kafka 代理地址，可以多个

									spring.kafka.bootstrap-servers=192.168.59.130:9092,192.168.59.131:9092,192.168.59.132:9092

									# 指定默认消费者group id

									spring.kafka.consumer.group-id=myGroup

									# 指定默认topic id

									spring.kafka.template.default-topic= my-replicated-topic

									# 指定listener 容器中的线程数，用于提高并发量

									spring.kafka.listener.concurrency= 3

									# 每次批量发送消息的数量

									spring.kafka.producer.batch-size= 1000

configuration 启用kafka

									package cn.xiaojf.today.data.kafka.configuration;

									import org.springframework.context.annotation.Configuration;

									import org.springframework.kafka.annotation.EnableKafka;

									/**

									 * kafka 配置

									 * @author xiaojf 2017/3/24 14:09

									 */

									@Configuration

									@EnableKafka

									public class KafkaConfiguration {

									}

消息生产者

									package cn.xiaojf.today.data.kafka.producer;

									import org.apache.kafka.clients.producer.Producer;

									import org.apache.kafka.clients.producer.RecordMetadata;

									import org.springframework.beans.factory.annotation.Autowired;

									import org.springframework.kafka.core.KafkaOperations;

									import org.springframework.kafka.core.KafkaTemplate;

									import org.springframework.kafka.support.ProducerListener;

									import org.springframework.stereotype.Component;

									/**

									 * 消息生产者

									 * @author xiaojf 2017/3/24 14:36

									 */

									@Component

									public class MsgProducer {

									 @Autowired

									 private KafkaTemplate<String,String> kafkaTemplate;

									 public void send() {

									  kafkaTemplate.send("my-replicated-topic","xiaojf");

									  kafkaTemplate.send("my-replicated-topic","xiaojf");

									  kafkaTemplate.metrics();

									  kafkaTemplate.execute(new KafkaOperations.ProducerCallback<String, String, Object>() {

									   @Override

									   public Object doInKafka(Producer<String, String> producer) {

									    //这里可以编写kafka原生的api操作

									    return null;

									   }

									  });

									  //消息发送的监听器，用于回调返回信息

									  kafkaTemplate.setProducerListener(new ProducerListener<String, String>() {

									   @Override

									   public void onSuccess(String topic, Integer partition, String key, String value, RecordMetadata recordMetadata) {

									   }

									   @Override

									   public void onError(String topic, Integer partition, String key, String value, Exception exception) {

									   }

									   @Override

									   public boolean isInterestedInSuccess() {

									    return false;

									   }

									  });

									 }

									}

消息消费者

									package cn.xiaojf.today.data.kafka.consumer;

									import org.springframework.kafka.annotation.KafkaListener;

									import org.springframework.stereotype.Component;

									/**

									 * 消息消费者

									 * @author xiaojf 2017/3/24 14:36

									 */

									@Component

									public class MsgConsumer {

									 @KafkaListener(topics = {"my-replicated-topic","my-replicated-topic2"})

									 public void processMessage(String content) {

									  System.out.println(content);

									 }

									}