本專案是在Spring Boot的基礎上構建的，筆者使用的是Spring Boot 1.5.8版本.

1.在專案的pom.xml檔案中引入如下依賴項：

<dependency>
    <groupId>org.apache.kafka</groupId>
    <artifactId>kafka-clients</artifactId>
    <version>0.10.2.0</version>
</dependency>
<dependency>
    <groupId>org.springframework.kafka</groupId>
    <artifactId>spring-kafka</artifactId>
    <version>1.2.0.RELEASE</version>
</dependency>
 

2.在application.properties檔案中加入kafka所需要的配置資訊

## kafka相關配置資訊
## kafka叢集地址列表
kafka.bootstrap-servers=192.168.74.80:9092,192.168.74.81:9092
## kafka訊息主題
kafka.dataacquisition.topic=dataacquisition

3.Producer端配置

3.1.KafkaProducerConfig

@Configuration
@EnableKafka
public class KafkaProducerConfig {

    /**
     * The Bootstrap servers.
     */
    @Value("${kafka.bootstrap-servers}")
    private String bootstrapServers;

    /**
     * The Topic.
     */
    @Value("${kafka.dataacquisition.topic}")
    private String topic;

    /**
     * Gets topic.
     *
     * @return the topic
     */
    public String getTopic() {
        return topic;
    }

    /**
     * Producer factory producer factory.
     *
     * @return the producer factory
     */
    @Bean
    public ProducerFactory<String, String> producerFactory() {
        Map<String, Object> configProps = new HashMap<>();
        configProps.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapServers);
        configProps.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        configProps.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class);

        return new DefaultKafkaProducerFactory<>(configProps);
    }

    /**
     * Kafka template kafka template.
     *
     * @return the kafka template
     */
    @Bean
    public KafkaTemplate<String, String> kafkaTemplate() {
        return new KafkaTemplate<>(producerFactory());
    }
}
 

3.2.Producer

@Component
public class Producer {

    /**
     * The constant logger.
     */
    private static final Logger logger = LogManager.getLogger(Producer.class);

    /**
     * The Kafka template.
     */
    @Autowired
    private KafkaTemplate<String, String> kafkaTemplate;

    /**
     * Send.
     *
     * @param topic   the topic
     * @param message the message
     */
    public void send(String topic , String message) {
        logger.debug("傳送訊息到kafka訊息系統， message:" + message);
        kafkaTemplate.send(topic, message);
        logger.debug("傳送訊息到kafka訊息系統結束");
    }
}
 

4.1.KafkaConsumerConfig

@Configuration
@EnableKafka
public class KafkaConsumerConfig {

    /**
     * The Bootstrap servers.
     */
    @Value("${kafka.bootstrap-servers}")
    private String bootstrapServers;

    /**
     * The Topic.
     */
    @Value("${kafka.dataacquisition.topic}")
    private String topic;

    /**
     * Gets topic.
     *
     * @return the topic
     */
    public String getTopic() {
        return topic;
    }

    /**
     * Consumer factory consumer factory.
     *
     * @return the consumer factory
     */
    @Bean
    public ConsumerFactory<String, String> consumerFactory() {
        Map<String, Object> configProps = new HashMap<>();
        configProps.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapServers);
        configProps.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        configProps.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        configProps.put(ConsumerConfig.GROUP_ID_CONFIG, topic);
        return new DefaultKafkaConsumerFactory<>(configProps);
    }

    /**
     * Kafka listener container factory concurrent kafka listener container factory.
     *
     * @return the concurrent kafka listener container factory
     */
    @Bean
    public ConcurrentKafkaListenerContainerFactory<String, String> kafkaListenerContainerFactory() {
        ConcurrentKafkaListenerContainerFactory<String, String> factory =
                new ConcurrentKafkaListenerContainerFactory<>();
        factory.setConsumerFactory(consumerFactory());

        return factory;
    }
}

@Component
public class Consumer {

    /**
     * The constant logger.
     */
    private static final Logger logger = LogManager.getLogger(Consumer.class);

    /**
     * The Data handle service.
     */
    @Autowired
    private DataHandleService dataHandleService;

    /**
     * Receive.
     *
     * @param message the message
     */
    @KafkaListener(topics = "${kafka.dataacquisition.topic}")
    public void receive(String message) {
        logger.info("接收到kafka訊息系統的message:" + message);
        Merchandise merchandise = JsonUtils.jsonToObject(message, Merchandise.class);
        dataHandleService.handle(merchandise);
    }
}