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public class TaskManager implements ServletContextListener {
/**
  * ¨C¤Ñªº²@¬í¼Æ
  */
public static final long PERIOD_DAY = DateUtils.MILLIS_IN_DAY;
/**
  * ¤@©P¤ºªº²@¬í¼Æ
  */
public static final long PERIOD_WEEK = PERIOD_DAY * 7;
/**
  * µL©µ¿ð
  */
public static final long NO_DELAY = 0;
/**
  * ­p®É¾¹
  */
private Timer timer;
/**
  * ¦bWebÀ³¥Î±Ò°Ê®Éªì©l¤Æ¥ô°È
  */
public void contextInitialized(ServletContextEvent event) {
        //©w¸q­p®É¾¹
  timer = new Timer("¸ê®Æ®wªí³Æ¥÷",true);
  //±Ò°Ê³Æ¥÷¥ô°È,¨C¤ë(4­Ó¬P´Á)°õ¦æ¤@¦¸
  timer.schedule(new BackUpTableTask(),NO_DELAY, PERIOD_WEEK * 4);
//  timer.schedule(new BackUpTableTask(),NO_DELAY, 30000);
}
/**
  * ¦bWebÀ³¥Îµ²§ô®É°±¤î¥ô°È
  */
public void contextDestroyed(ServletContextEvent event) {
  timer.cancel(); // ­p®É¾¹¾P·´
}
}

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public class BackUpTableTask extends <!-- ¥¿¤å­¶ºôµe¤¤µe¼s§i  -->
TimerTask {
private static Log log = LogFactory.getLog(BackUpTableTask.class);
private static boolean isRunning = false;
public void run() {
  if (!isRunning) {
   isRunning = true;
   log.debug("¶}©l°õ¦æ¥ô°È..."); //¶}©l¥ô°È
   //working  add what you want to do
   log.debug("°õ¦æ¥ô°È§¹¦¨..."); //¥ô°È§¹¦¨
   isRunning = false;
  } else {
   log.debug("¤W¤@¦¸¥ô°È°õ¦æÁÙ¥¼µ²§ô..."); //¤W¤@¦¸¥ô°È°õ¦æÁÙ¥¼µ²§ô
  }
}
}

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<listener>
  <listener-class>***.TaskManager</listener-class>
  <description>­n©w´Á°õ¦æªº¥ô°È</description>
</listener>






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