Java Session.commit方法代碼示例

import javax.jms.Session; //導入方法依賴的package包/類
private void putTopic(List<String> events) throws Exception {
  ConnectionFactory factory = new ActiveMQConnectionFactory(USERNAME,
      PASSWORD, BROKER_BIND_URL);
  Connection connection = factory.createConnection();
  connection.start();

  Session session = connection.createSession(true,
      Session.AUTO_ACKNOWLEDGE);
  Destination destination = session.createTopic(DESTINATION_NAME);
  MessageProducer producer = session.createProducer(destination);

  for (String event : events) {
    TextMessage message = session.createTextMessage();
    message.setText(event);
    producer.send(message);
  }
  session.commit();
  session.close();
  connection.close();
}
 

import javax.jms.Session; //導入方法依賴的package包/類
private void putQueue(List<String> events) throws Exception {
  ConnectionFactory factory = new ActiveMQConnectionFactory(USERNAME,
      PASSWORD, BROKER_BIND_URL);
  Connection connection = factory.createConnection();
  connection.start();

  Session session = connection.createSession(true,
      Session.AUTO_ACKNOWLEDGE);
  Destination destination = session.createQueue(DESTINATION_NAME);
  MessageProducer producer = session.createProducer(destination);

  for (String event : events) {
    TextMessage message = session.createTextMessage();
    message.setText(event);
    producer.send(message);
  }
  session.commit();
  session.close();
  connection.close();
}
 

import javax.jms.Session; //導入方法依賴的package包/類
protected void doPublish(Event event) throws EdsException {
  Connection conn = null;
  Session session = null;
  MessageProducer messageProducer = null;
  try {
    LOG.debug("eds pub 3 mq in -[event:" + event + "]");
    conn = connectionFactory.createConnection();
    // 設置非事務，客戶端確認方式
    session = conn.createSession(false, Session.CLIENT_ACKNOWLEDGE);

    MapMessage mapMessage = session.createMapMessage();
    mapMessage = EventConverter.convertToMessage(mapMessage, event);
    Destination dest = getDestination(event.getName(), session);
    messageProducer = session.createProducer(dest);
    messageProducer.send(mapMessage);
    // commit session if necessary
    if (session.getTransacted()) {
      session.commit();
    }
    LOG.debug("eds pub 4 mq ok -[conn:" + conn + ",session:" + session + ",event:" + event + "]");
  }catch(JMSException e){
    throw new EdsException("eds client activemq doPublish exception ", e);
  }finally {
    releaseSession(session);
    releaseMessageProducer(messageProducer);
    releaseConnection(conn, false);
  }
}
 

import javax.jms.Session; //導入方法依賴的package包/類
static void queueMessage(Session session, String text, String queueName) {
    try {
        Queue queue = session.createQueue(queueName);
        MessageProducer producer = session.createProducer(queue);

        TextMessage message = session.createTextMessage(text);
        message.setJMSCorrelationID(MDC.get(X_OBOS_REQUEST_ID));

        producer.send(message);
        session.commit();
    } catch (JMSException ex) {
        throw new MessageQueueException("Could not queue message '" + text + "'", ex);
    }
}
 

import javax.jms.Session; //導入方法依賴的package包/類
@Override
public void requeueFailedMessages() {
    try {
        ActiveMQConnection connection = ActiveMqUtils.openConnection(user, password, url);
        Session session = ActiveMqUtils.startSession(connection);

        int count = getQueueSize(session, queueError);

        if (count < 1) {
            return;
        }

        log.info("Requeuing {} failed messages...", count);

        Queue queueErr = session.createQueue(queueError);
        MessageConsumer consumer = session.createConsumer(queueErr);

        Queue queueRetry = session.createQueue(queueInput);
        MessageProducer producer = session.createProducer(queueRetry);

        for (int consumed = 0; consumed < count; consumed++) {
            TextMessage message = (TextMessage) consumer.receive(REQUEUE_TIMEOUT);

            if (message == null) {
                continue;
            }

            String text = message.getText();
            String requestId = message.getJMSCorrelationID();

            log.info("Requeuing message '{}'", text);

            try {
                TextMessage newMessage = session.createTextMessage(text);
                newMessage.setJMSCorrelationID(requestId);

                producer.send(newMessage);
            } catch (Exception e) {
                log.error("Failed to requeue message", e);
            }

            message.acknowledge();
            session.commit();
        }

        producer.close();
        consumer.close();
    } catch (JMSException ex) {
        throw new MessageQueueException("Failed to requeue failed messages", ex);
    }
}