使用weblogic jms定时发送的功能列子(转)

package com.sourceware.sms.platform.jms;

import javax.jms.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import com.sourceware.sms.SMS;
import org.apache.log4j.Logger;

/**
* <p>标题： 短信平台</p>
* <p>描述： 短信平台以及相关业务。</p>
* <p>版权： 宁波友科软件有限公司 Copyright (c) 2004</p>
* <p>公司： 宁波友科软件有限公司</p>
* @author 吴锋彬（woowind@sina.com）
* @version 1.0
*/

public class JMSQueueSend {

Logger logger = Logger.getLogger(JMSQueueSend.class);
public JMSQueueSend() {
}

public final static String JNDI_FACTORY = "weblogic.jndi.WLInitialContextFactory";
private static String JMS_FACTORY = "JNDI_JMS_Connection_Factory";
private static String QUEUE = null;

private QueueConnectionFactory qconFactory;
private QueueConnection qcon;
private weblogic.jms.extensions.WLQueueSession qsession;
private weblogic.jms.client.JMSProducer qsender;
private Queue queue;
private ObjectMessage msg;

/**
* Creates all the necessary objects for sending
* messages to a JMS queue.
*
* @param ctx JNDI initial context
* @param queueName name of queue
* @exception NamingException if operation cannot be performed
* @exception JMSException if JMS fails to initialize due to internal error
*/
void init(Context ctx, String queueName) throws NamingException, JMSException {
qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);

qcon = qconFactory.createQueueConnection();

qsession = (weblogic.jms.extensions.WLQueueSession) qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);

queue = (Queue) ctx.lookup(queueName);

qsender = (weblogic.jms.client.JMSProducer) qsession.createSender(queue);

msg = qsession.createObjectMessage();
logger.debug(qconFactory + "["
+ qcon.getClass().getName()
+ "]"
+ "["
+ qsession.getClass().getName()
+ "]"
+ "["
+ qsender.getClass().getName()
+ "]"
+ "["
+ msg.getClass().getName()
+ "]");

qcon.start();
}

/**
* Closes JMS objects.
* @exception JMSException if JMS fails to close objects due to internal error
*/
void close() throws JMSException {
qsender.close();
qsession.close();
qcon.close();
}

/**
*
* @param SMS SMS
* @throws Exception
*/
public void sendMO(SMS sms) throws Exception {
InitialContext ic = new InitialContext();
init(ic, "JNDI_CMW_SMS_MO_QUEUE");
msg.setJMSExpiration(sms.getExpiration());
msg.setJMSMessageID(new Long(sms.getMessageID()).toString());
long time2Deliver = sms.getSheduleTime().getTime() - System.currentTimeMillis();
if (time2Deliver > 0) {
qsender.setTimeToDeliver(time2Deliver);//定时
}

msg.setObject(sms);
msg.setJMSPriority(sms.getPriority());
qsender.send(msg);
this.close();

}

/**
*
* @param SMS SMS
* @throws Exception
*/
public void sendMT(SMS sms) throws Exception {

InitialContext ic = new InitialContext();
init(ic, "JNDI_CMW_SMS_MT_QUEUE");
msg.setJMSExpiration(sms.getExpiration());
msg.setJMSMessageID(new Long(sms.getMessageID()).toString());
long time2Deliver = sms.getSheduleTime().getTime() - System.currentTimeMillis();
if (time2Deliver > 0) {
qsender.setTimeToDeliver(time2Deliver);
}
msg.setObject(sms);
msg.setJMSPriority(sms.getPriority());
qsender.send(msg);
this.close();

}

/**
*
* @param sms SMS
* @param jndiName String
* @throws Exception
*/
public void send(SMS sms, String jndiName) throws Exception {
InitialContext ic = new InitialContext();
init(ic, jndiName);
msg.setJMSExpiration(sms.getExpiration());
msg.setJMSMessageID(new Long(sms.getMessageID()).toString());
long time2Deliver = sms.getSheduleTime().getTime() - System.currentTimeMillis();
if (time2Deliver > 0) {
qsender.setTimeToDeliver(time2Deliver);
}

msg.setObject(sms);
msg.setJMSPriority(sms.getPriority());
qsender.send(msg);
this.close();

}
}