Spring-Boot：如何訪問多個 JMS 代理 URL

Question

在 Spring-Boot 中，默認的 ActiveMQ (JMS) 屬性是：

spring.activemq.broker-url=tcp://192.168.1.210:9876
spring.activemq.user=admin
spring.activemq.password=secret

如果我想發送到多個 broker-url 或收聽不同的 broker-url 怎么做？

Answer 1

spring.activemq.broker-url= # URL of the ActiveMQ broker. Auto-generated by default. For instance `tcp://localhost:61616`
spring.activemq.in-memory=true # Specify if the default broker URL should be in memory. Ignored if an explicit broker has been specified.
spring.activemq.password= # Login password of the broker.
spring.activemq.user= # Login user of the broker.

使spring.activemq.in-memory=false 。 如果它是真的，那么它會從內存中讀取，你會得到另一個。 希望它會有所幫助。

資源鏈接：

https://docs.spring.io/spring-boot/docs/current/reference/html/common-application-properties.html

Answer 2

您無法使用默認的Spring-Boot自動配置訪問兩個不同的代理。

為了解決這個問題，你必須像下面的例子一樣創建你自己的配置 Bean：

@Configuration
class JmsUtilsConfiguration {

    @Value("${activemq.broker-one.url}")
    private String brokerOneUrl;

    // Im my case, broker-two is secured -> hence username and password need to be configured
    @Value("${activemq.broker-two.url}")
    private String brokerTwoUrl;

    @Value("${activemq.broker-two.username}")
    private String brokerTwoUser;

    @Value("${activemq.broker-two.password}")
    private String brokerTwoPwd;

    @Bean
    @Primary
    public ConnectionFactory jmsConnectionFactoryOne() {
        return new ActiveMQConnectionFactory(brokerOneUrl);
    }

    @Bean
    public QueueConnectionFactory jmsConnectionFactoryTwo() {
        ActiveMQConnectionFactory activeMQConnectionFactory = new ActiveMQConnectionFactory();
        activeMQConnectionFactory.setBrokerURL(brokerTwoUrl);
        activeMQConnectionFactory.setUserName(brokerTwoUser);
        activeMQConnectionFactory.setPassword(brokerTwoPwd);
        return activeMQConnectionFactory;
    }

    // JmsListenerContainerFactory declarations
    @Bean
    public JmsListenerContainerFactory<?> jmsListenerContainerFactoryOne(
            ConnectionFactory connectionFactory, DefaultJmsListenerContainerFactoryConfigurer configurer) {
        DefaultJmsListenerContainerFactory factory = new DefaultJmsListenerContainerFactory();
        configurer.configure(factory, connectionFactory);
        return factory;
    }

    @Bean
    public JmsListenerContainerFactory<?> jmsListenerContainerFactoryTwo(
            @Qualifier("jmsConnectionFactoryTwo") ConnectionFactory connectionFactory,
            DefaultJmsListenerContainerFactoryConfigurer configurer) {
        DefaultJmsListenerContainerFactory factory = new DefaultJmsListenerContainerFactory();
        configurer.configure(factory, connectionFactory);
        return factory;
    }
    
    // JMS Template Declaration
    
    @Bean
    @Primary
    public JmsTemplate jmsTemplateOne() {
        JmsTemplate jmsTemplate = new JmsTemplate();
        jmsTemplate.setConnectionFactory(jmsConnectionFactoryOne());
        return jmsTemplate;
    }

    @Bean
    public JmsTemplate jmsTemplateTwo() {
        JmsTemplate jmsTemplate = new JmsTemplate();
        jmsTemplate.setConnectionFactory(jmsConnectionFactoryTwo());
        return jmsTemplate;
    }

}

在我的application.yml我只是引用了注入的屬性（沒有設置默認的spring.activemq ）：

activemq:
  broker-one:
    url: tcp://localhost:61616
    local-queue: TEST.LOCAL.INBOUND
  broker-two:
    url: failover:(ssl://myremote-amq-1:61617,ssl://myremote-amq-2:61617)?jms.watchTopicAdvisories=false&timeout=5000&maxReconnectDelay=10000
    username: myuser
    password: mypass
    remote-queue: TEST.REMOTE.QUEUE

並在我的偵聽器 Bean 中（假設我只想從兩個隊列中消費）

@Component
public class ConsumeQueuesBean {

    private static final Logger LOGGER = LoggerFactory.getLogger(ConsumeQueuesBean.class);

    @JmsListener(destination = "${activemq.broker-one.local-queue}", containerFactory = "jmsListenerContainerFactoryOne")
    public void onMessageReceiveB1(final Message message) throws JMSException {
        if (message instanceof TextMessage) {
            String text = ((TextMessage) message).getText();
            LOGGER.info(text);
        }
    }


    @JmsListener(destination = "${activemq.broker-two.remote-queue}", containerFactory = "jmsListenerContainerFactoryTwo")
    public void onMessageReceivedB2(final Message message) throws JMSException {
        if (message instanceof TextMessage) {
            String text = ((TextMessage) message).getText();
            LOGGER.info(text);
        }
    }
}

您還可以使用配置中定義的jmsTemplates將消息發布到您想要的代理。