spring jmsListener侦听多个队列

时间:2019-04-05 21:12:35

标签: java spring-boot ibm-mq spring-jms

在这篇文章中,加里·罗素(Garry Russell)解释了如何以编程方式创建多个KafkaListeners以侦听多个主题。[此设置实际上对我来说是成功的] Kafka Spring: How to create Listeners dynamically or in a loop?

现在,我也想对JMSListeners进行类似的设置-在其中可以有一个类,其中包含一个@JMSListener,并且我可以以编程方式创建该JMSListener的多个实例,每个实例都注入了自己的queueName。

我找到了这个帖子 Spring JMS start listening to jms queues on request

在这篇文章的最后,加里发表了类似的评论,

  

如果您希望动态创建大量容器,则只需以编程方式创建容器,请调用afterPropertiesSet(),然后调用start()

我使用的是上面第一篇文章中的设置(与KafkaListeners有关),我的多个JMS侦听器实例正在启动,但没有使用任何消息。

基本上我不知道该在哪里做

  

然后只需以编程方式创建容器,调用afterPropertiesSet(),然后调用start()

我对“容器”一词感到困惑,我知道有JMSListener和 JmsListenerContainerFactory,在此上下文中什么是容器-我猜是JMSListener?

我已确认队列中有消息。另外,当我没有以编程方式创建侦听器,而只在其中提到一个带有硬编码队列的侦听器时,它会很好地消耗消息。

当我以编程方式创建多个JMS侦听器时,基本上没有一个侦听器正在使用消息

    @SpringBootApplication
@EnableJms
public class MqProdConsumerApplication {
    private static Logger logger = LogManager.getLogger(MqProdConsumerApplication.class.getName());
    private static Consumers consumersStatic;

    @Autowired
    Consumers consumers;

    @PostConstruct
    public void init() {
        consumersStatic = this.consumers;
    }

    @Bean
    public Gson gson() {
        return new Gson();
    }

    public static void main(String[] args) {
        ConfigurableApplicationContext context = SpringApplication.run(MqProdConsumerApplication.class, args);
        List<QueueInformation> queueInformationList = consumersStatic.getQueueInformationList();
        Assert.notEmpty(queueInformationList, "queueInformationList cannot be empty");
        logger.debug("queueInformationList ************" + queueInformationList.toString());
        for (QueueInformation queueInformation : queueInformationList) {
            AnnotationConfigApplicationContext child = new AnnotationConfigApplicationContext();
            child.setParent(context);
            child.register(MQConfig.class);
            Properties props = new Properties();
            props.setProperty("mqQueueName", queueInformation.getMqQueueName());
            //
            PropertiesPropertySource pps = new PropertiesPropertySource("listenerProps", props);
            child.getEnvironment().getPropertySources().addLast(pps);
            child.refresh();
        }
    }
}

这里是具有listenerContainerFactory的MQConfig

@Configuration
public class MQConfig {
    Logger logger = LoggerFactory.getLogger(this.getClass());

    @Value("${ibm.mq.user}")
    private String mqUserName;

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

    @PostConstruct
    public void afterConstruct() {
        logger.debug("************* initialized MQ Config successfully for user =" + mqUserName);
    }

    @Bean
    public JmsListenerContainerFactory<?> myFactory(ConnectionFactory connectionFactory,
                                                    DefaultJmsListenerContainerFactoryConfigurer configurer) {
        DefaultJmsListenerContainerFactory factory = new DefaultJmsListenerContainerFactory();
        configurer.configure(factory, connectionFactory);

        // Put the MQ username in the PCF environment.
        // Otherwise, the connection is identified by PCF's default user, "VCAP"
        System.setProperty("user.name", mqUserName);
        return factory;
    }
}

然后是具有实际@JMSListener的MQListener

    public class MQListener {
    Logger logger = LoggerFactory.getLogger(this.getClass());

    @Value("${mqQueueName}")
    private String mqQueueName;

    @PostConstruct
    public void afteConstruct() {
        logger.debug("************* initialized MQ Listener successfully, will read from =" + mqQueueName);

    }

    @JmsListener(destination = "${mqQueueName}", containerFactory = "myFactory")
    public void receiveMessage(String receivedMessage) throws JAXBException, ExecutionException, InterruptedException {
        logger.debug("***********************************************receivedMessage:" + receivedMessage);
    }
}

这是我的应用程序。yml

    ibm.mq.queueManager: ABCTOD01
ibm.mq.channel: QMD00.SERVER
ibm.mq.connName: mqdv1.devfg.ABC.com
ibm.mq.user: pmd0app1
ibm.mq.password:
consumers:
  queueInformationList:
  -
    mqQueueName: QMD00.D.SRF.PERSON.LITE.PHONE.LOAD
  -
    mqQueueName: QMD00.D.SRF.PERSON.PHONE.LOAD

1 个答案:

答案 0 :(得分:0)

好吧,我发现了另一则帖子,其中加里回答了我要找的东西 Adding Dynamic Number of Listeners(Spring JMS)

基本上,这是我的可行解决方案。 很棒@GaryRussell-我现在是粉丝:)

@Override
public void configureJmsListeners(JmsListenerEndpointRegistrar registrar) {
    List<QueueInformation> queueInformationList = consumersStatic.getQueueInformationList();
    int i = 0;
    for (QueueInformation queueInformation :
            queueInformationList) {
        SimpleJmsListenerEndpoint endpoint = new SimpleJmsListenerEndpoint();
        endpoint.setId("myJmsEndpoint-" + i++);
        endpoint.setDestination(queueInformation.getMqQueueName());
        endpoint.setMessageListener(message -> {
            logger.debug("***********************************************receivedMessage:" + message);
        });
        registrar.registerEndpoint(endpoint);
        logger.debug("registered the endpoint for queue" + queueInformation.getMqQueueName());
    }

}