多线程批量异步执行

最新推荐文章于 2024-05-17 14:45:11 发布

原创最新推荐文章于 2024-05-17 14:45:11 发布 · 1.5k 阅读

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ExecutorService cachedThreadPool = Executors.newCachedThreadPool();
for (int i = 0; i < 300; i++) {
    final int index = i;
    Future<?> future = cachedThreadPool.submit(new Runnable() {
        public void run() {
            System.out.println(index);
            if (index == 5 || index==100 || index == 200) {
                try {
                    Thread.sleep(1000 * 100000);
                } catch (InterruptedException e) {
                }
            }
        }
    });
    try {
        //一秒如果不返回，直接放弃。
        Object obj = future.get(1000 * 1, TimeUnit.MILLISECONDS);
    } catch (InterruptedException e) {
        System.out.println(Thread.currentThread().getName()+" is Interrupted.");
    } catch (ExecutionException e) {
        e.printStackTrace();
    } catch (TimeoutException e) {
        System.out.println(index+"这个线程超时啦，直接放弃处理...");
    }finally {
        future.cancel(true);
    }
}
cachedThreadPool.shutdown();
System.out.println("All thread shutdown");