java定时任务

java定时任务实现方法：

public class TimingTask {
    private static int count = 0;
    private static SpiderService service = null;
      public static void startTask(int hour,int minute,int second) {
            TimerTask task = new TimerTask() {
                @Override
                public void run() {
                    service = new SpiderService();
                    service.service();
                    ++count;
                    System.out.println("时间=" + new Date() + " 执行了" + count + "次"); // 1次
                }
            };

            //设置执行时间
            Calendar calendar = Calendar.getInstance();
            int year = calendar.get(Calendar.YEAR);
            int month = calendar.get(Calendar.MONTH);
            int day = calendar.get(Calendar.DAY_OF_MONTH);//每天
            //定制每天的21:09:00执行，
            calendar.set(year, month, day, hour, minute, second);
            Date date = calendar.getTime();
            Timer timer = new Timer();
            System.out.println(date);
            
           // int period = 2 * 1000;
            //每天的date时刻执行task，每隔2秒重复执行
           // timer.schedule(task, date, period);
            //每天的date时刻执行task, 仅执行一次
            timer.schedule(task, date);
        }

调用方法：

    public static void main(String[] args) {
                //下面是两个任务
            TimingTask.startTask(11, 40, 00);
            TimingTask.startTask(11, 45, 00);
        }