spring-jms

问题 Given I have ActiveMQ queue where many messages are already present. When I set receive timeout on JmsTemplate to RECEIVE_TIMEOUT_NO_WAIT which is equal to -1 : jmsTemplate.setReceiveTimeout(JmsTemplate.RECEIVE_TIMEOUT_NO_WAIT); and try to receive one of those messages: Message msg = jmsTemplate.receive(queueName); then msg is null , but it should not be according JavaDoc: /** * Timeout value indicating that a receive operation should * check if a message is immediately available without

问题 I have my application that should communicate with two external systems A and B. So I am creating actually 2 containers like this: private DefaultMessageListenerContainer createContainer(Conf conf) { DefaultMessageListenerContainer jmsCnr= new DefaultMessageListenerContainer(); jmsCnr.setConnectionFactory(connectionFactoryAdapter); jmsCnr.setDestinationResolver(destinationResolver); jmsCnr.setDestinationName(destinationName); jmsCnr.setMessageListener(MyClass); jmsCnr.initialize(); return

问题 I am following this guide- https://spring.io/guides/gs/messaging-jms/ I have few messages with higher priority that needs to be sent before any other message. I have already tried following - jmsTemplate.execute(new ProducerCallBack(){ public Object doInJms(Session session,MessageProducer producer){ Message hello1 =session.createTextMessage("Hello1"); producer.send(hello1, DeliveryMode.PERSISTENT,0,0); // <- low priority Message hello2 =session.createTextMessage("Hello2"); producer.send

问题 This is followup question on this I am setting few application specific properties on messages and i want the messages to be prioritized based on those specific property values For example : Message message = session.createTextMessage("hello world!"); message.setStringProperty("myProperty","100"); producer.send(message ) Here I want messages to be prioritize based on value of myProperty . Is this possible? 回答1: ActiveMQ doesn't support prioritizing delivery based on arbitrary message headers

问题 raw jms code: TopicSubscriber durSubscriber1 = receiverSession.createDurableSubscriber(topic,"subscription_1"); durSubscriber1.setMessageListener(new MessageListener() { @Override public void onMessage(Message message) { RMQTextMessage rmqTextMessage = ((RMQTextMessage) message); try { System.out.println("sub_1:" + rmqTextMessage.getText()); } catch (JMSException e) { e.printStackTrace(); } } }); TopicSubscriber durSubscriber2 = receiverSession.createDurableSubscriber(topic,"subscription_2");

问题 Spring includes a class called CachingConnectionFactory. One variable in this class is a boolean named cacheProducers. By default, this value is true. This variable can be set to false using setCacheProducers(false). When would it be appropriate to set this to false? What are the benefits and drawbacks of setting to false? Background: We are conducting a performance test of our application and use Spring JMS to post thousands of messages a second to JMS. Profiling our code, we see that the

问题 Can somebody point me to a way to grecefully stop a DefaultMessageListenerContainer in Spring that is defined with a receiveTimeout = -1 (i.e. it is using the blocking version of javax.jms.MessageConsumer#receive) ? Actually, I've tried both stop() and shutdown() methods of DMLC but consumer thread is stuck on the receive() call. "heartBeatContainer-1" prio=6 tid=0x0304d800 nid=0x1d20 in Object.wait() [0x037ef000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait

问题 I am using IBM mq(p800-005-160516.2) and Spring JMS template to post messages to MQ.My application is having one database resource and one MQ resource in global transaction.Problem is that it fails if i configure CachingConnnectionFactory public class Xa { public ConnectionFactory connectionFactory() throws Exception { AtomikosConnectionFactoryBean atomikosConnectionFactoryBean = new AtomikosConnectionFactoryBean(); atomikosConnectionFactoryBean.setUniqueResourceName("pavan"); Properties

问题 I working on an application which reads message from Azure service bus. This application was created using spring boot, Spring jms and Qpid jms client. I am able to read the message properly from Queue without any issues. PFB My code which I am using to read message. @Service public class QueueReceiver { @JmsListener(destination = "testing") public void onMessage(String message) { if (null != message) { System.out.println("Received message from Queue: " + message); } }} Issue is we have

问题 I have a JMS producer sending 2 kinds of messages: business logic and heart beat messages. Currently, both are handled by the same receiver, but I am now trying to have dedicated classes for each by using selectors. The problem I have is whenever I add the selector to the receiver, it stops receiving messages. Here is what I have so far. For simplicity, I have only added the code for the heart beat: To send the message, I have this: private void sendHeartBeat() { this.buildTemplate().send(new