jms 事务

 事务
         session = conn.createQueueSession(true, Session.AUTO_ACKNOWLEDGE);
         true 表示这个会话是事务性的，需要显式的commit 或者rollback ()
                                         没有begin()方法，眨动打开事务
                                        
     public void send() {
        try {
                    publicMessageFlag("start");
                   publicMessage("msg1");
                    publicMessage("msg2");
                    publicMessage("msg3");
                    publicMessageFlag("end");
session.commit();
         } catch (JMSException e) {
              e.printStackTrace();
            try {
session.rollback();
            } catch (JMSException e1) {
                e1.printStackTrace();
            }
        }//发送一个空的bytemessage 消息，标志着这一组消息的开始
       

    }package org.jixiuf.chat; import javax.jms.BytesMessage; import javax.jms.JMSException; import javax.jms.Queue; import javax.jms.QueueConnection; import javax.jms.QueueSender; import javax.jms.QueueSession; import javax.jms.Session; import javax.jms.TextMessage; import org.jixiuf.util.JNDIUtil; public class ChatServer { QueueConnection conn; Queue requestQueue; QueueSession session; int age = 10; QueueSender sender; public ChatServer() { conn = JNDIUtil.crateQueueConnection(); requestQueue = JNDIUtil.lookupQueue("requestQueue"); try { session = conn.createQueueSession(true, Session.AUTO_ACKNOWLEDGE); sender = session.createSender(requestQueue); } catch (JMSException e) { e.printStackTrace(); } } // flag 是"start" ,和"end" 分别表示这组消息的开头 public void publicMessageFlag(String flag) throws JMSException { BytesMessage msg = null; msg = session.createBytesMessage(); msg.setStringProperty("JMSXGroupID", "group1"); msg.setStringProperty("flag", flag); sender.send(msg); } // flag 是"start" ,和"end" 分别表示这组消息的开头 public void publicMessage(String msgStr)throws JMSException { TextMessage msg; msg = session.createTextMessage(); msg.setStringProperty("JMSXGroupID", "group1"); msg.setText(msgStr); sender.send(msg); } public void send() { try { publicMessageFlag("start"); publicMessage("msg1"); publicMessage("msg2"); publicMessage("msg3"); publicMessageFlag("end"); session.commit(); } catch (JMSException e) { e.printStackTrace(); try { session.rollback(); } catch (JMSException e1) { e1.printStackTrace(); } }//发送一个空的bytemessage 消息，标志着这一组消息的开始 } public void exit() { try { conn.close(); } catch (JMSException e) { e.printStackTrace(); } System.exit(0); } public static void main(String[] args) { ChatServer server = new ChatServer(); server.send(); server.exit(); } }

 

 

 

如果需要与数据库同步，在同一个事务内完成则要用XA

XAConnection
XAConnectionFactory
XAQueueConnection
XAQueueConnectionFactory
XAQueueSession
XASession
XATopicConnection
XATopicConnectionFactory
XATopicSession