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我正在尝试运行一个非常基本的应用程序来学习 Spring JMS + ActiveMQ。我看到我的 Producer 创建了消息 (sysout),但我的 Consumer 中没有显示任何内容,也没有引发异常。我想我在这里遗漏了一些简单的东西;非常感谢任何帮助。

[已编辑,以下代码有效]

制片人:

@Component
public class JmsMessageProducer
{
    @Autowired
    private JmsTemplate template;

    public void generateMessages() throws JMSException
    {
        template.send(new MessageCreator()
        {
            public Message createMessage(Session session) throws JMSException
            {
                System.out.println("sending..");
                TextMessage message = session.createTextMessage("this is a Producer created message!");
                return message;
            }
        });
    }
}

消费者:

@Component
public class JmsMessageConsumer implements MessageListener {
    @Override
    public void onMessage(Message message) {
        if (message instanceof TextMessage) {
            TextMessage tm = (TextMessage) message;
            try {
                System.out.println("CONSUMER - received ["+tm.getText()+"]");
            }
            catch (Throwable th) {
                th.printStackTrace();
            }
        }
    }
}

生产者配置:

<context:component-scan base-package="mrpomario.springcore.jms"/> <!-- finds the JmsMessageProducer -->

<bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
    <property name="brokerURL" value="tcp://localhost:8082"/>
</bean>

<bean id="pomarioQueue" class="org.apache.activemq.command.ActiveMQQueue">
    <constructor-arg value="mrpomario.springcore.jms.queue"/>
</bean>

<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
    <property name="connectionFactory" ref="connectionFactory"/>
    <property name="defaultDestination" ref="pomarioQueue"/>
</bean>

消费者配置:

<jms:listener-container>
    <jms:listener ref="jmsMessageConsumer" method="onMessage" destination="mrpomario.springcore.jms.queue"/>
</jms:listener-container>

<bean id="pomarioQueue" class="org.apache.activemq.command.ActiveMQQueue">
    <constructor-arg value="mrpomario.springcore.jms.queue"/>
</bean>

<bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
    <property name="brokerURL" value="tcp://localhost:8082"/>
</bean>

<amq:broker id="broker" useJmx="false" persistent="false">
    <amq:transportConnectors>
        <amq:transportConnector uri="tcp://localhost:8082" />
    </amq:transportConnectors>
</amq:broker>

测试用例:

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:mrpomario/springcore/jms/jms-config.xml")
public class JmsTest
{
    @Autowired
    JmsMessageProducer jmsMessageProducer;

    @Test
    public void test_Single_Queue_Producer_and_Consumer_Unidirectional() throws JMSException
    {
        try
        {
            jmsMessageProducer.generateMessages();
            assertTrue(true);
        }
        catch (Throwable th)
        {
            System.out.println("\n\nJmsTest: remote invocation failed. Ensure the web server is running.\n\n");
        }
    }
}

我在 Java EE 容器 (mvn jetty:run) 中运行生产者,Spring MVC 应用程序也在该容器中运行。

4

1 回答 1

0

我认为您最终会向两个完全不同的代理(以及随后不同的队列)发送和消费:

只在一个地方定义你的代理,比如你的生产者配置:

<amq:broker id="broker" useJmx="false" persistent="false">
    <amq:transportConnectors>
        <amq:transportConnector uri="tcp://localhost:8082" />
        <amq:transportConnector uri="vm://localhost" />
    </amq:transportConnectors>
</amq:broker>

<amq:connectionFactory id="jmsFactory" brokerURL="vm://localhost" />

从您的消费者配置中删除代理配置,并且只有 connectionFactory: Either(如果您在同一个 VM 中):

<amq:connectionFactory id="jmsFactory" brokerURL="vm://localhost" />

或者(如果远程):

<amq:connectionFactory id="jmsFactory" brokerURL="tcp://localhost:8082" />
于 2012-09-25T17:57:20.107 回答