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
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);
}
}
