ScheduledThreadPoolExecutor周期性执行线程任务scheduleAtFixedRate
ScheduledThreadPoolExecutor mScheduledThreadPoolExecutor = new ScheduledThreadPoolExecutor(1);
mScheduledThreadPoolExecutor.scheduleAtFixedRate(new Runnable() {
@Override
public void run() {
System.out.println("线程id:" + Thread.currentThread().getId() + "\t" + System.currentTimeMillis());
}
}, 0, 3, TimeUnit.SECONDS);
new Thread(new Runnable() {
@Override
public void run() {
try {
TimeUnit.SECONDS.sleep(12);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("关闭ScheduledThreadPoolExecutor");
mScheduledThreadPoolExecutor.shutdown();
}
}).start();
ScheduledThreadPoolExecutor每隔3秒周期性的在线程中打印当前时间。同时另起一个线程，12秒后关闭ScheduledThreadPoolExecutor。
输出：
06-19 15:55:41.469 27469-27499/zhangphil.test I/System.out: 线程id:12150 1529394941469 06-19 15:55:44.467 27469-27499/zhangphil.test I/System.out: 线程id:12150 1529394944467 06-19 15:55:47.467 27469-27499/zhangphil.test I/System.out: 线程id:12150 1529394947467 06-19 15:55:50.468 27469-27499/zhangphil.test I/System.out: 线程id:12150 1529394950467 06-19 15:55:53.466 27469-27499/zhangphil.test I/System.out: 线程id:12150 1529394953466 06-19 15:55:53.468 27469-27500/zhangphil.test I/System.out: 关闭ScheduledThreadPoolExecutor