Syntax for selecting messages by Jms ID

孤街醉人 提交于 2019-12-07 08:23:41

问题


What is the correct syntax for selecting messages based on their corresponding JMS ID?

Currently I use:

String selector = "JMSMessageID='ID:305:1:5:1:1'";
messageConsumer = session.createConsumer(getRetryQueue(), selector);

The above syntax works in test with a mocked broker. But towards ActiveMQ the messages are not polled.

Original code:

@Override
public Message readMessageFromRetryQueueByJmsId(String jmsId) throws QueueingException {
    Connection connection = null;
    Session session = null;
    MessageConsumer messageConsumer = null;
    Message message = null;
    try {
        connection = getConnectionFactory().createConnection();
        session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        messageConsumer = session.createConsumer(getRetryQueue(), "JMSMessageID='"+jmsId+"'");
        message = messageConsumer.receiveNoWait();
    } catch (JMSException e) {
        throw new QueueingException("Failed to read message from MessageConsumer.");
    } finally {
        try { messageConsumer.close(); } catch (Exception e) { /* NOP */ }
        try { session.close(); } catch (Exception e) { /* NOP */ }
        try { connection.close(); } catch (Exception e) { /* NOP */ }
    }
    return message;
}

回答1:


Messages were not read since the connection was never started.

Corrected code:

@Override
public Message readMessageFromRetryQueueByJmsId(String jmsId) throws QueueingException {
    Connection connection = null;
    Session session = null;
    MessageConsumer messageConsumer = null;
    Message message = null;
    try {
        connection = getConnectionFactory().createConnection();
        session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        connection.start();
        messageConsumer = session.createConsumer(getRetryQueue(), "JMSMessageID='"+jmsId+"'");
        message = messageConsumer.receiveNoWait();
    } catch (JMSException e) {
        throw new QueueingException("Failed to read message from MessageConsumer.");
    } finally {
        try { connection.close(); } catch (Exception e) {}
    }
    return message;
}


来源:https://stackoverflow.com/questions/16612085/syntax-for-selecting-messages-by-jms-id

易学教程内所有资源均来自网络或用户发布的内容,如有违反法律规定的内容欢迎反馈
该文章没有解决你所遇到的问题?点击提问,说说你的问题,让更多的人一起探讨吧!