为线程执行设置timeout

package com.test.threads;

import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

/**
 * @author Hawkins
 *
 *
 *在指定时间内执行某个task，超时则退出执行。
 */
public class TimedCall {
	public static void main(String[] args) throws InterruptedException,
			ExecutionException, TimeoutException {
		long timeout = 1000;// 任务必须在设定时间内完成，否则任务将被强制关闭
		long timeNeed = 2000;// 任务完成需要的时长。
		TimeUnit timeUnit = TimeUnit.MILLISECONDS;// 时间单位
		ExecutorService executor = Executors.newSingleThreadExecutor();// 高级并发API

		Runnable task = new MyThread(timeNeed, timeUnit);

		while (!timedCall(executor, task, timeout, timeUnit))
			;// 在某些场景下，需要不断尝试执行任务，直到能够在限定时间内执行完毕。

	}

	private static boolean timedCall(ExecutorService executor, Runnable c,
			long timeout, TimeUnit timeUnit) throws InterruptedException,
			ExecutionException {
		// FutureTask task = new FutureTask