springboot 1.5.2 集成kafka 简单例子

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Springboot1.5.2以后和Kafka进行无缝集成

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 idspring.kafka.consumer.group-id=myGroup# 指定默认topic idspring.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@EnableKafkapublic 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 */@Componentpublic 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 */@Componentpublic class MsgConsumer {    @KafkaListener(topics = {"my-replicated-topic","my-replicated-topic2"})    public void processMessage(String content) {        System.out.println(content);    }}

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