java定时任务
java定时任务实现方法：
1 public class TimingTask { 2 private static int count = 0; 3 private static SpiderService service = null; 4 public static void startTask(int hour,int minute,int second) { 5 TimerTask task = new TimerTask() { 6 @Override 7 public void run() { 8 service = new SpiderService(); 9 service.service(); 10 ++count; 11 System.out.println("时间=" + new Date() + " 执行了" + count + "次"); // 1次 12 } 13 }; 14 15 //设置执行时间 16 Calendar calendar = Calendar.getInstance(); 17 int year = calendar.get(Calendar.YEAR); 18 int month = calendar.get(Calendar.MONTH); 19 int day = calendar.get(Calendar.DAY_OF_MONTH);//每天 20 //定制每天的21:09:00执行， 21 calendar.set(year, month, day, hour, minute, second); 22 Date date = calendar.getTime(); 23 Timer timer = new Timer(); 24 System.out.println(date); 25 26 // int period = 2 * 1000; 27 //每天的date时刻执行task，每隔2秒重复执行 28 // timer.schedule(task, date, period); 29 //每天的date时刻执行task, 仅执行一次 30 timer.schedule(task, date); 31 }
调用方法：
1 public static void main(String[] args) { 2 //下面是两个任务 3 TimingTask.startTask(11, 40, 00); 4 TimingTask.startTask(11, 45, 00); 5 }
