kafka整合springboot

最新推荐文章于 2025-03-27 11:14:58 发布

sunboychenll

最新推荐文章于 2025-03-27 11:14:58 发布

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分类专栏： MQ 文章标签： kafka MQ

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本文档详细介绍了如何在Spring应用中配置和使用Kafka，包括在pom.xml中添加依赖，设置springapplication.properties中的消费者和生产者配置，创建生产者和消费者配置类，以及实现消息的发送和监听。示例涵盖了自动和手动确认消费两种模式。

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1：pom文件加入依赖

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

2：配置springapplicatoin.property

#============== kafka ===================
kafka.consumer.zookeeper.connect=192.168.42.111:2181/kafka-one
kafka.consumer.servers=192.168.42.111:9092
kafka.consumer.enable.auto.commit=true
kafka.consumer.session.timeout=6000
kafka.consumer.auto.commit.interval=100
kafka.consumer.auto.offset.reset=latest
kafka.consumer.topic=test-1
kafka.consumer.group.id=test
kafka.consumer.concurrency=10

kafka.producer.servers=192.168.42.111:9092
kafka.producer.retries=0
kafka.producer.batch.size=4096
kafka.producer.linger=1
kafka.producer.buffer.memory=40960

server.port=8087

3:生产者cofing类

package cn.enjoyedu.config;

import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.serialization.StringSerializer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.annotation.EnableKafka;
import org.springframework.kafka.core.DefaultKafkaProducerFactory;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.kafka.core.ProducerFactory;

import java.util.HashMap;
import java.util.Map;

/**
 *  
 * 类说明：
 */
@Configuration
@EnableKafka
public class KafkaProducerConfig {
    @Value("${kafka.producer.servers}")
    private String servers;
    @Value("${kafka.producer.retries}")
    private int retries;
    @Value("${kafka.producer.batch.size}")
    private int batchSize;
    @Value("${kafka.producer.linger}")
    private int linger;
    @Value("${kafka.producer.buffer.memory}")
    private int bufferMemory;


    public Map<String, Object> producerConfigs() {
        Map<String, Object> props = new HashMap<>();
        props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, servers);
        props.put(ProducerConfig.RETRIES_CONFIG, retries);
        props.put(ProducerConfig.BATCH_SIZE_CONFIG, batchSize);
        props.put(ProducerConfig.LINGER_MS_CONFIG, linger);
        props.put(ProducerConfig.BUFFER_MEMORY_CONFIG, bufferMemory);
        props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        return props;
    }

    public ProducerFactory<String, String> producerFactory() {
        return new DefaultKafkaProducerFactory<>(producerConfigs());
    }

    @Bean
    public KafkaTemplate<String, String> kafkaTemplate() {
        KafkaTemplate kafkaTemplate
                = new KafkaTemplate<String, String>(producerFactory()) ;
        //kafkaTemplate.setProducerListener();
        return kafkaTemplate;
    }


}

4：消费者config类

package cn.enjoyedu.config;

import cn.enjoyedu.service.MyListener;
import cn.enjoyedu.service.MyListenerAck;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.annotation.EnableKafka;
import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory;
import org.springframework.kafka.config.KafkaListenerContainerFactory;
import org.springframework.kafka.core.ConsumerFactory;
import org.springframework.kafka.core.DefaultKafkaConsumerFactory;
import org.springframework.kafka.listener.AbstractMessageListenerContainer;
import org.springframework.kafka.listener.ConcurrentMessageListenerContainer;
import org.springframework.kafka.listener.ContainerProperties;

import java.util.HashMap;
import java.util.Map;

/**
 *  
 * 类说明：
 */
@Configuration
@EnableKafka
public class KafkaConsumerConfig {
    @Value("${kafka.consumer.servers}")
    private String servers;
    @Value("${kafka.consumer.enable.auto.commit}")
    private boolean enableAutoCommit;
    @Value("${kafka.consumer.session.timeout}")
    private String sessionTimeout;
    @Value("${kafka.consumer.auto.commit.interval}")
    private String autoCommitInterval;
    @Value("${kafka.consumer.group.id}")
    private String groupId;
    @Value("${kafka.consumer.auto.offset.reset}")
    private String autoOffsetReset;
    @Value("${kafka.consumer.concurrency}")
    private int concurrency;

    public Map<String, Object> consumerConfigs() {
        Map<String, Object> propsMap = new HashMap<>();
        propsMap.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, servers);
        propsMap.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, enableAutoCommit);
        propsMap.put(ConsumerConfig.AUTO_COMMIT_INTERVAL_MS_CONFIG, autoCommitInterval);
        propsMap.put(ConsumerConfig.SESSION_TIMEOUT_MS_CONFIG, sessionTimeout);
        propsMap.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        propsMap.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        propsMap.put(ConsumerConfig.GROUP_ID_CONFIG, groupId);
        propsMap.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, autoOffsetReset);
        return propsMap;
    }

    public ConsumerFactory<String, String> consumerFactory() {
        return new DefaultKafkaConsumerFactory<>(consumerConfigs());
    }

    @Bean
    public MyListener listener() {
        return new MyListener();
    }

    @Bean
    public KafkaListenerContainerFactory<ConcurrentMessageListenerContainer<String, String>>
    kafkaListenerContainerFactory() {
        ConcurrentKafkaListenerContainerFactory<String, String> factory
                = new ConcurrentKafkaListenerContainerFactory<>();
        factory.setConsumerFactory(consumerFactory());
        factory.setConcurrency(concurrency);
        factory.getContainerProperties().setPollTimeout(1500);
        return factory;
    }

    //-------------------------------------------------------------------
    //-------------------------------------------------------------------
    //------------------手动确认-------------------------------------------------

    public Map<String, Object> consumerConfigsAck() {
        Map<String, Object> propsMap = new HashMap<>();
        propsMap.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, servers);
        propsMap.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, false);
        propsMap.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        propsMap.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        propsMap.put(ConsumerConfig.GROUP_ID_CONFIG, groupId);
        return propsMap;
    }

    public ConsumerFactory<String, String> consumerFactoryAck() {
        return new DefaultKafkaConsumerFactory<>(consumerConfigsAck());
    }

    @Bean("listenerAck")
    public MyListenerAck listenerAck() {
        return new MyListenerAck();
    }

    @Bean("factoryAck")
    public KafkaListenerContainerFactory<ConcurrentMessageListenerContainer<String, String>>
    kafkaListenerContainerFactoryAck() {
        ConcurrentKafkaListenerContainerFactory<String, String> factory
                = new ConcurrentKafkaListenerContainerFactory<>();
        factory.setConsumerFactory(consumerFactoryAck());
        factory.setConcurrency(concurrency);
        factory.getContainerProperties().setPollTimeout(1500);
        factory.getContainerProperties().setAckMode(ContainerProperties.AckMode.MANUAL_IMMEDIATE);
        return factory;
    }
}

5：控制器

package cn.enjoyedu.controller;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

/**
 *  
 * 类说明：
 */
@RestController
@RequestMapping("/kafka")
public class KafkaController {
    protected final Logger logger = LoggerFactory.getLogger(this.getClass());
    @Autowired
    private KafkaTemplate kafkaTemplate;

    @RequestMapping(value = "/send")
    public String sendKafka(@RequestParam(required = false) String key,
                            @RequestParam(required = false) String value) {
        try {
            logger.info("kafka的消息={}", value);
            kafkaTemplate.send("test", key, value);
            return "发送kafka成功";
        } catch (Exception e) {
            logger.error("发送kafka异常：", e);
            return "发送kafka失败";
        }
    }

    @RequestMapping(value = "/sendAck")
    public String sendKafkaAck(@RequestParam(required = false) String key,
                            @RequestParam(required = false) String value) {
        try {
            logger.info("kafka的消息={}", value);
            kafkaTemplate.send("testAck", key, value);
            return "发送kafka成功";
        } catch (Exception e) {
            logger.error("发送kafka异常：", e);
            return "发送kafka失败";
        }
    }
}

7：自动的消费者监听类：

public class MyListener {
    protected final Logger logger = LoggerFactory.getLogger(this.getClass());


    @KafkaListener(topics = {"test"})
    public void listen(ConsumerRecord<?, ?> record) {
        logger.info("收到消息的key: " + record.key());
        logger.info("收到消息的value: " + record.value().toString());
    }
}

8：手动的消费者监听类：

public class MyListenerAck {
    protected final Logger logger = LoggerFactory.getLogger(this.getClass());

   // @KafkaListener(topics = {"testAck"},containerFactory = "factoryAck")
    public void listen(ConsumerRecord<?, ?> record, Acknowledgment ack) {
        try {
            logger.info("自行确认方式收到消息的key: " + record.key());
            logger.info("自行确认方式收到消息的value: " + record.value().toString());
        } finally {
            logger.info("消息确认！");
            ack.acknowledge();
        }
    }
}