我想在计划时间(英国东部时间23点59分和英国西部时间8点)执行两项任务。我创建了一个保持这些方法的EJB单例bean:Java EE单例计划任务执行两次
@Singleton
public class OfferManager {
@Schedule(hour = "23", minute = "59", timezone = "CET")
@AccessTimeout(value = 0) // concurrent access is not permitted
public void fetchNewOffers() {
Logger.getLogger(OfferManager.class.getName()).log(Level.INFO, "Fetching new offers started");
// ...
Logger.getLogger(OfferManager.class.getName()).log(Level.INFO, "Fetching new offers finished");
}
@Schedule(hour="8", minute = "0", timezone = "CET")
public void sendMailsWithReports() {
Logger.getLogger(OfferManager.class.getName()).log(Level.INFO, "Generating reports started");
// ...
Logger.getLogger(OfferManager.class.getName()).log(Level.INFO, "Generating reports finished");
}
}
问题是两个任务都执行了两次。服务器是WildFly Beta1,在UTC时间配置。
这里有一些服务器日志,这可能是有用的:
2013-10-20 11:15:17,684 INFO [org.jboss.as.server] (XNIO-1 task-7) JBAS018559: Deployed "crawler-0.3.war" (runtime-name : "crawler-0.3.war")
2013-10-20 21:59:00,070 INFO [com.indeed.control.OfferManager] (EJB default - 1) Fetching new offers started
....
2013-10-20 22:03:48,608 INFO [com.indeed.control.OfferManager] (EJB default - 1) Fetching new offers finished
2013-10-20 23:59:00,009 INFO [com.indeed.control.OfferManager] (EJB default - 2) Fetching new offers started
....
2013-10-20 23:59:22,279 INFO [com.indeed.control.OfferManager] (EJB default - 2) Fetching new offers finished
什么可能是这种行为的原因是什么?
检查是否有其他'@ Schedule'可以在'21:59:00'上运行。您显示的代码此时应该*不*运行。 – 2013-10-21 09:53:37
这些是使用'@ Schedule'注释的唯一方法 – Khozzy
第二种方法也执行两次。在计划的时间之前2小时,然后正确 – Khozzy