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Spring RabbitMQ-@RabbitListener構成のサービスで手動チャネル確認を使用する

自動確認を使用せずにメッセージを手動で確認する方法。 @RabbitListenerおよび@EnableRabbitスタイルの構成と共にこれを使用する方法はありますか。ドキュメントのほとんどは、SimpleMessageListenerContainerとともにChannelAwareMessageListenerを使用するように指示しています。ただし、それを使用すると、注釈で提供される柔軟性が失われます。以下のようにサービスを設定しました：

@Service
public class EventReceiver {

@Autowired
private MessageSender messageSender;

@RabbitListener(queues = "${eventqueue}")
public void receiveMessage(Order order) throws Exception {

  // code for processing order
}

私のRabbitConfigurationは次のとおりです

@EnableRabbit
public class RabbitApplication implements RabbitListenerConfigurer {

public static void main(String[] args) {
    SpringApplication.run(RabbitApplication.class, args);
}

@Bean


public MappingJackson2MessageConverter jackson2Converter() {
        MappingJackson2MessageConverter converter = new  MappingJackson2MessageConverter();
        return converter;
    @Bean
public SimpleRabbitListenerContainerFactory myRabbitListenerContainerFactory() {
      SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
      factory.setConnectionFactory(rabbitConnectionFactory());
      factory.setMaxConcurrentConsumers(5);
      factory.setMessageConverter((MessageConverter) jackson2Converter());
      factory.setAcknowledgeMode(AcknowledgeMode.MANUAL);
      return factory;
    }

@Bean
public ConnectionFactory rabbitConnectionFactory() {
    CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
    connectionFactory.setHost("localhost");
    return connectionFactory;
}

@Override
public void configureRabbitListeners(RabbitListenerEndpointRegistrar registrar) {
    registrar.setContainerFactory(myRabbitListenerContainerFactory());
}

@Autowired
private EventReceiver receiver;
}
}

上記の構成スタイルに加えて、手動チャネル確認応答をどのように適応させるかについての助けがあれば評価されます。 ChannelAwareMessageListenerを実装すると、onMessageシグネチャが変更されます。サービスにChannelAwareMessageListenerを実装できますか？

javarabbitmqspring-amqpspring-rabbitmqspring-rabbit
13
Guru

Channelを@RabbitListenerメソッドに追加します...

@RabbitListener(queues = "${eventqueue}")
public void receiveMessage(Order order, Channel channel,
    @Header(AmqpHeaders.DELIVERY_TAG) long tag) throws Exception {
    ...
}

basicAck、basicRejectでタグを使用します。

[〜＃〜] edit [〜＃〜]

@SpringBootApplication
@EnableRabbit
public class So38728668Application {

    public static void main(String[] args) throws Exception {
        ConfigurableApplicationContext context = SpringApplication.run(So38728668Application.class, args);
        context.getBean(RabbitTemplate.class).convertAndSend("", "so38728668", "foo");
        context.getBean(Listener.class).latch.await(60, TimeUnit.SECONDS);
        context.close();
    }

    @Bean
    public Queue so38728668() {
        return new Queue("so38728668");
    }

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

    public static class Listener {

        private final CountDownLatch latch = new CountDownLatch(1);

        @RabbitListener(queues = "so38728668")
        public void receive(String payload, Channel channel, @Header(AmqpHeaders.DELIVERY_TAG) long tag)
                throws IOException {
            System.out.println(payload);
            channel.basicAck(tag, false);
            latch.countDown();
        }

    }

}

application.properties：

spring.rabbitmq.listener.acknowledge-mode=manual
21
Gary Russell

念のため、ChannelAwareMessageListenerクラスの#onMessage（）を使用する必要があります。その後、この方法でそれを行うことができます。

@Component
public class MyMessageListener implements ChannelAwareMessageListener {

@Override
public void onMessage(Message message, Channel channel) {
    log.info("Message received.");
    // do something with the message
    channel.basicAck(message.getMessageProperties().getDeliveryTag(), false);
}

}

そして、ウサギ用

@Configuration
public class RabbitConfig {

public static final String topicExchangeName = "exchange1";

public static final String queueName = "queue1";

public static final String routingKey = "queue1.route.#";

@Bean
public ConnectionFactory connectionFactory() {
    CachingConnectionFactory connectionFactory = new CachingConnectionFactory("localhost");
    connectionFactory.setUsername("xxxx");
    connectionFactory.setPassword("xxxxxxxxxx");
    connectionFactory.setPort(5672);
    connectionFactory.setVirtualHost("vHost1");
    return connectionFactory;
}

@Bean
public RabbitTemplate rabbitTemplate() {
    return new RabbitTemplate(connectionFactory());
}

@Bean
Queue queue() {
    return new Queue(queueName, true);
}

@Bean
TopicExchange exchange() {
    return new TopicExchange(topicExchangeName);
}

@Bean
Binding binding(Queue queue, TopicExchange exchange) {
    return BindingBuilder.bind(queue).to(exchange).with(routingKey);
}


@Bean
public SimpleMessageListenerContainer listenerContainer(POCRabbitMessageListener pocRabbitMessageListener) {
    SimpleMessageListenerContainer listenerContainer = new SimpleMessageListenerContainer();
    listenerContainer.setConnectionFactory(connectionFactory());
    listenerContainer.setQueueNames(queueName);
    listenerContainer.setMessageListener(pocRabbitMessageListener);
    listenerContainer.setAcknowledgeMode(AcknowledgeMode.MANUAL);
    listenerContainer.setConcurrency("4");
    listenerContainer.setPrefetchCount(20);
    return listenerContainer;
}

}

4
Pari Ngang