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我有一个客户端向JMS MDB发送请求。它可以很好地发送消息到 MDB，但是我不能在我的生活中弄清楚如何让客户端拿起MDB发回给它的响应。客户端客户端未收到JMS回复
编辑：客户端代码是在同一个实例上使用@WebService的Web服务。我不知道这是否有所作为（例如交易），但似乎有效，除了这一个问题。
MDB代码：
private void sendReply(String replyData, javax.jms.Message requestMessage)
{
try
{
logger.info("sendReply message received had ID: " + requestMessage.getJMSMessageID());
logger.info("sendReply message getJMSReplyTo: " + requestMessage.getJMSReplyTo());
Session session = connection.createSession(false, javax.jms.Session.AUTO_ACKNOWLEDGE);
final Queue replyQueue = (Queue) requestMessage.getJMSReplyTo();
MessageProducer producer = session.createProducer(replyQueue);
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
TextMessage message = session.createTextMessage();
message.setText(replyData);
message.setJMSCorrelationID(requestMessage.getJMSMessageID());
producer.send(message, DeliveryMode.PERSISTENT, 9, 60000);
producer.close();
logger.info("sendReply message returned had ID: " + message.getJMSMessageID());
session.close();
logger.debug("sendReply sent reply containing:\n" + replyData);
}
catch (Throwable e)
{
logger.warn("Exception in sendReply(): " + stackToString(e));
}
}
客户端代码：
connection = connectionFactory.createConnection();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageProducer producer = session.createProducer(requestQueue);
Message message = null;
// Snip creation of message
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
final Queue replyQueue = session.createTemporaryQueue();
message.setJMSReplyTo(replyQueue);
consumer = session.createConsumer(replyQueue);
producer.send(message);
producer.close();
log.info("call message transmitted had Message ID: " + message.getJMSMessageID());
TextMessage replyMessage = (TextMessage)consumer.receive(JMS_REPLY_TIMEOUT); // 30 seconds
log.info("call message returned had Correlation ID: " + replyMessage.getJMSCorrelationID());
log.info("call message returned had Message ID: " + replyMessage.getJMSMessageID());
我每次运行此，TextMessage replyMessage = (TextMessage)consumer.receive(JMS_REPLY_TIMEOUT);返回null行。每一次。我究竟做错了什么？ MDB代码成功运行 - 日志消息全部输出相关数据，并且MDB收到的消息内容如预期的那样。这是我无法工作的答复信息。
我已经使用下面的代码浏览临时队列，并看到消息！检查消息ID，我发送的回复消息是，肯定是在队列中，但调用consumer.receive(JMS_REPLY_TIMEOUT)仍然返回空值......我根本无法弄清楚发生了什么事情。
log.info("Browsing Queue");
QueueBrowser browser = session.createBrowser(replyQueue);
final Enumeration<?> en = browser.getEnumeration();
while (en.hasMoreElements()) {
Message m = (Message) en.nextElement();
log.info("Found message in Queue with Browser with ID [{}] and CorrelID [{}]", m.getJMSMessageID(), m.getJMSCorrelationID());
}
browser.close();
我在Ubuntu 10.04上运行Glassfish 3.1.2.2，Java 1.7.0_04 64位。
编辑：我也曾尝试分裂出去的发送和接收到单独的交易，就像这样：
@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
private void sendMessage(final Session session, final Message message) throws JMSException {
// Create a MessageProducer from the Session to the Topic or Queue
final MessageProducer producer = session.createProducer(requestQueue);
try {
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
producer.send(message);
}
finally {
producer.close();
}
}
@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
private TextMessage receiveMessage(Session session, Destination replyQueue) throws JMSException {
final MessageConsumer consumer = session.createConsumer(replyQueue);
try {
final TextMessage m = (TextMessage)consumer.receive(JMS_REPLY_TIMEOUT);
return m;
}
finally {
consumer.close();
}
}
这并没有解决我的问题，但我会承认我不能确定这就是我所需要的以确保这些方法中存在新的交易。
编辑：修改接收方法：
@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
private TextMessage receiveMessage(Session session, Destination replyQueue) throws JMSException {
final MessageConsumer consumer = session.createConsumer(replyQueue);
try {
log.info("Receiving message on Queue [{}]", replyQueue);
final TextMessage m = (TextMessage)consumer.receive(JMS_REPLY_TIMEOUT);
log.info("Received message [{}]", m);
log.info("Browsing Queue");
QueueBrowser browser = session.createBrowser((Queue) replyQueue);
final Enumeration<?> en = browser.getEnumeration();
while (en.hasMoreElements()) {
Message mess = (Message) en.nextElement();
log.info("Found message in Queue with Browser with ID [{}] and CorrelID [{}]", mess.getJMSMessageID(), mess.getJMSCorrelationID());
}
browser.close();
return m;
}
finally {
consumer.close();
}
}
和日志输出我得到的是：
20130225200939808 CLIENT heartBeat Called.
20130225200939808 CLIENT heartBeat Sending Message...
20130225200940020 CLIENT callMAPSWebServiceMDB building TextMessage
20130225200940057 CLIENT Sending message
20130225200940064 CLIENT Sent message
20130225200940067 CLIENT message transmitted had Message ID: ID:1-192.168.2.105(b5:49:dd:bf:5b:a6)-1-1361776180058
20130225200940077 CLIENT Receiving message on Queue [Oracle GlassFish(tm) Server MQ Destination
getName(): temporary_destination://queue/192.168.2.105/3170601277394174976/1
Class: com.sun.messaging.jms.ra.TemporaryQueue
getVERSION(): 3.0
isReadonly(): false
getProperties(): {imqDestinationName=temporary_destination://queue/192.168.2.105/3170601277394174976/1, imqDestinationDescription=A Description for the Destination Object}]
20130225200940183 SERVER Message Received
20130225200940757 SERVER Function called is: [heartBeat]
20130225200950759 SERVER sendReply message received had ID: ID:1-192.168.2.105(b5:49:dd:bf:5b:a6)-1-1361776180058
20130225200950760 SERVER sendReply message getJMSReplyTo: Oracle GlassFish(tm) Server MQ Destination
getName(): temporary_destination://queue/192.168.2.105/3170601277394174976/1
Class: com.sun.messaging.jms.ra.TemporaryQueue
getVERSION(): 3.0
isReadonly(): false
getProperties(): {imqDestinationName=temporary_destination://queue/192.168.2.105/3170601277394174976/1, imqDestinationDescription=A Description for the Destination Object}
20130225200950777 SERVER Sending reply message
20130225200950779 SERVER Sent reply message
20130225200950780 SERVER sendReply message returned had ID: ID:2-192.168.2.105(b5:49:dd:bf:5b:a6)-1-1361776190777
20130225200950781 SERVER MAPSWebServiceMDB Message Done
20130225201010078 CLIENT Received message [null]
20130225201010080 CLIENT Browsing Queue
20130225201010092 CLIENT Found message in Queue with Browser with ID [ID:2-192.168.2.105(b5:49:dd:bf:5b:a6)-1-1361776190777] and CorrelID [ID:1-192.168.2.105(b5:49:dd:bf:5b:a6)-1-1361776180058]
因此，尽管在等待队列中30秒，我没收到一直在队列中的消息。所以东西是错误的。这是我正在做的事吗？还是Glassfish的错误？