设定一个线程最多运行3秒 超过3秒就中断 两种方法
1.用Future
final ExecutorService exec = Executors.newFixedThreadPool(1);
Future<Object> future = exec.submit(() -> {
for (int i = 1; i <= 1000; i++) {
System.out.println(i + "");
Thread.sleep(1000L);
}
return null;
});
try {
future.get(3000, TimeUnit.MILLISECONDS);
} catch (Exception e) {
e.printStackTrace();
future.cancel(true);//必须代码
}
System.out.println("end");
2.Thread.interrupt （严格来说没啥用 因为正常的逻辑代码中不会有Thread.sleep()）
Thread t1 = new Thread(() -> {
for (int i = 1; i <= 1000; i++) {
System.out.println(i + "");
try {
Thread.sleep(1000L);
} catch (InterruptedException e) {
e.printStackTrace();
throw new RuntimeException(e); //必须抛出异常 不然还是会继续执行
}
}
});
t1.start();
try {
t1.join(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
t1.interrupt(); //核心代码
System.out.println("end");
