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MyListener£º
import
java.util.Timer;
import
javax.servlet.ServletContextEvent;
import
javax.servlet.ServletContextListener;
public
class
MyListener
implements
ServletContextListener {
private
Timer timer
=
null
;
public
void
contextInitialized(ServletContextEvent event) {
timer
=
new
Timer(
true
);
//
ÉèÖÃÈÎÎñ¼Æ»®£¬Æô¶¯ºÍ¼ä¸ôʱ¼ä
timer.schedule(
new
MyTask(),
0
,
86400000
);
}
public
void
contextDestroyed(ServletContextEvent event) {
timer.cancel();
}
}
MyTask£º
import
java.util.TimerTask;
public
class
MyTask
extends
TimerTask {
public
void
run() {
//
System.out.println("call at " + (new Date()));
//
TODO ´Ë´¦Ìí¼Ó¾ßÌåÈÎÎñ´úÂë
}
}
web.xmlÅäÖãº
<
listener
>
<
listener-class
>
com.fastunit.samples.listener.MyListener
</
listener-class
>
</
listener
>
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javax.servlet.ServletContextListener½Ó¿Ú£¬Í¬Ê±ÊµÏÖËüµÄ
contextInitialized(ServletContextEvent
event)ºÍcontextDestroyed(ServletContextEvent
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