相关疑难解决方法(0)

在TimeoutException之后如何让FutureTask返回?

在下面的代码中,我按照预期在100秒后捕获TimeoutException.此时我希望代码退出main并终止程序,但它会继续打印到控制台.如何让任务在超时后停止执行?

private static final ExecutorService THREAD_POOL = Executors.newCachedThreadPool();

private static <T> T timedCall(Callable<T> c, long timeout, TimeUnit timeUnit) throws InterruptedException, ExecutionException, TimeoutException {
    FutureTask<T> task = new FutureTask<T>(c);
    THREAD_POOL.execute(task);
    return task.get(timeout, timeUnit);
}


public static void main(String[] args) {

    try {
        int returnCode = timedCall(new Callable<Integer>() {
            public Integer call() throws Exception {
                for (int i=0; i < 1000000; i++) {
                    System.out.println(new java.util.Date());
                    Thread.sleep(1000);
                }
                return 0;
            }
        }, 100, TimeUnit.SECONDS);
    } catch (Exception e) {
        e.printStackTrace();
        return;
    }


}
Run Code Online (Sandbox Code Playgroud)

java futuretask

9
推荐指数
1
解决办法
2万
查看次数

标签 统计

futuretask ×1

java ×1