java定时器

public class TimerListener implements ServletContextListener { private Timer containerTimer = null; /** * 定时器的执行 */ public void contextInitialized(ServletContextEvent e) { try { e.getServletContext().log("定时器已经启动"); this.containerTimer = new Timer(); this.containerTimer.schedule(BusiContainer.getInstance(), new Date(), (long) (30 * 1000));//系统从启动开始，每个一个小时执行任务一次 e.getServletContext().log("已经添加任务调度"); } catch(Exception ex) { ex.printStackTrace(); } } /** * 定时器的销毁 * @param e */ public void contextDestroyed(ServletContextEvent e) { containerTimer.cancel(); e.getServletContext().log("定时器销毁"); } }

 

public class BusiContainer extends TimerTask { private static BusiContainer busiContainer = null; private BusiContainer() { } public void run() { // try { // AutoProcessSalesDataByPos salesProcess = new AutoProcessSalesDataByPos(); // salesProcess.dataProcess(); // } catch (Exception e) { // e.printStackTrace(); // } // try { System.out.println("线程退货数据开始执行**********************************"); ReturnOrderPosJC returnPos = new ReturnOrderPosJC(); returnPos.dataProcess(); } catch(Exception e) { e.printStackTrace(); } } public static BusiContainer getInstance() throws Exception { if (busiContainer == null) { busiContainer = new BusiContainer(); } return busiContainer; } }

 

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