【问题标题】:JMS messaging in Wildfly standalone modeWildfly 独立模式下的 JMS 消息传递
【发布时间】:2018-09-29 22:38:22
【问题描述】:

我在以standalone-full-ha.xml 开头的独立模式下使用2 个Wildfly 11 服务器实例。

现在我想通过实现使用相同主题的 Sender 和 Receiver 在这两者之间发送 JMS 消息,如下所示:

接收者:

@Named
@MessageDriven(
   name="TaskJmsMsgReceiver", 
   activationConfig={
     @javax.ejb.ActivationConfigProperty(propertyName="destinationLookup", propertyValue="topic/Blubb"),
     @javax.ejb.ActivationConfigProperty(propertyName="destinationType",   propertyValue="javax.jms.Topic"),
     @javax.ejb.ActivationConfigProperty(propertyName="acknowledgeMode",   propertyValue="Auto-acknowledge")
})
public class TaskJmsMsgReceiver implements MessageListener {

    @Inject
    private TaskWebSocketChannel webSocketChannel;

    @Override
    public void onMessage(Message rcvMessage) {
        TextMessage msg = null;
        try {
            if (rcvMessage instanceof TextMessage) {
                msg = (TextMessage) rcvMessage;
                String jmsMessageText = msg.getText();
                log.info("Received JMS Message: " + jmsMessageText);
                String socketChannelEmpfaenger = jmsMessageText;
                webSocketChannel.send(socketChannelEmpfaenger);
            }
        } catch (JMSException e) {
        ...
        }
    }

}

发件人:

@JMSDestinationDefinitions({
@javax.jms.JMSDestinationDefinition(
    name = "java:/jms/topic/Blubb",
    interfaceName = "javax.jms.Topic", 
    destinationName = "Blubb")
})
@Stateless
@Dependent
public class TaskJmsMsgSender {

    @Resource(lookup = "java:/jms/topic/Blubb")
    private Topic topic;

    @Inject
    private JMSContext context;

    public void send(String text) {
        log.info("Send JMS Message: " + text);
        context.createProducer().send(topic, text);
    }

}

现在,显然我需要配置 Wildfly 实例以与同一个 JMS 主题一起工作。

有人可以指出正确的方向如何配置它吗?

非常感谢。

【问题讨论】:

  • 现在我明白我需要更多地了解 JGroups 以及 WildFly 用于发现和连接集群的各种网络协议。看来我那里有问题。

标签: jms wildfly jgroups


【解决方案1】:

默认情况下,standalone-full-ha.xml 为 Apache ActiveMQ Artemis 的嵌入式实例启用集群。因此,如果生产者正在向一台服务器发送消息,而消费者正在另一台服务器上运行,则消息应该在服务器之间流动,这样即使它们在不同的服务器上运行,消费者也会自动接收发送的消息。

【讨论】:

    【解决方案2】:

    我正在使用 Wildfly 服务器和 JMS 客户端,并且工作正常。试试这个代码,它会对你有帮助,

    独立的.xml

     <mdb>
                    <resource-adapter-ref resource-adapter-name="${ejb.resource-adapter-name:activemq-ra.rar}"/>
                    <bean-instance-pool-ref pool-name="mdb-strict-max-pool"/>
    

     <subsystem xmlns="urn:jboss:domain:messaging-activemq:2.0">
                <server name="default">
                    <security-setting name="#">
                        <role name="guest" send="true" consume="true" create-non-durable-queue="true" delete-non-durable-queue="true"/>
                    </security-setting>
                    <address-setting name="#" dead-letter-address="jms.queue.DLQ" expiry-address="jms.queue.ExpiryQueue" max-size-bytes="10485760" page-size-bytes="2097152" message-counter-history-day-limit="10"/>
                    <http-connector name="http-connector" socket-binding="http" endpoint="http-acceptor"/>
                    <http-connector name="http-connector-throughput" socket-binding="http" endpoint="http-acceptor-throughput">
                        <param name="batch-delay" value="50"/>
                    </http-connector>
                    <in-vm-connector name="in-vm" server-id="0">
                        <param name="buffer-pooling" value="false"/>
                    </in-vm-connector>
                    <http-acceptor name="http-acceptor" http-listener="default"/>
                    <http-acceptor name="http-acceptor-throughput" http-listener="default">
                        <param name="batch-delay" value="50"/>
                        <param name="direct-deliver" value="false"/>
                    </http-acceptor>
                    <in-vm-acceptor name="in-vm" server-id="0">
                        <param name="buffer-pooling" value="false"/>
                    </in-vm-acceptor>
                    <jms-queue name="ExpiryQueue" entries="java:/jms/queue/ExpiryQueue"/>
                    <jms-queue name="DLQ" entries="java:/jms/queue/DLQ"/>
                    <jms-queue name="DeckQueue" entries="java:/jboss/exported/jms/queue/DeckQueue"/>
                    <connection-factory name="InVmConnectionFactory" entries="java:/ConnectionFactory" connectors="in-vm"/>
                    <connection-factory name="RemoteConnectionFactory" entries="java:jboss/exported/jms/RemoteConnectionFactory" connectors="http-connector"/>
                    <pooled-connection-factory name="activemq-ra" entries="java:/JmsXA java:jboss/DefaultJMSConnectionFactory" connectors="in-vm" transaction="xa"/>
                </server>
    

    java 常量

    public static final String DESTINATION = "destination";
        public static final String DESTINATION_VALUE = "java:/jboss/exported/jms/queue/DeckQueue";
        public static final String DESTINATION_TYPE = "destinationType";
        public static final String DESTINATION_TYPE_VALUE = "javax.jms.Queue";
    public static final String QUEUE_LOOKUP = "java:/jboss/exported/jms/queue/DeckQueue";
        public static final String CONNECTION_FACTORY = "java:jboss/DefaultJMSConnectionFactory";//
    

     public static boolean sendJmsMessage(Serializable obj) {
            QueueConnection connection = null;
            QueueSession session = null;
    
            try {
                connection = JmsConnectionFactory.getFactory().createQueueConnection();
                session = connection.createQueueSession(false, QueueSession.AUTO_ACKNOWLEDGE);
    
                Queue queue = (Queue) JmsConnectionFactory.getContext().lookup(Constants.QUEUE_LOOKUP);
                QueueSender sender = session.createSender(queue);
    
                ObjectMessage objMsg = session.createObjectMessage();
                objMsg.setObject(obj);
    
                logger.log(Level.INFO, "Sending message : {0}", obj);
    
                sender.send(objMsg);
    

    @MessageDriven(activationConfig = {
                @ActivationConfigProperty(
                propertyName = DESTINATION_TYPE, propertyValue = DESTINATION_TYPE_VALUE),
        @ActivationConfigProperty(
                        propertyName = DESTINATION, propertyValue = DESTINATION_VALUE)})
    public class JmsMessageBean implements MessageListener {
    

    【讨论】:

    • JmsConnectionFactory.getFactory().createQueueConnection()是什么意思?
    • 只需通过new JmsConnectionFactory().getContextInstance()来初始化JmsConnectionFactory;
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