线程池实现异步任务执行java代码实现 请给出三个样例

1. 使用Java自带的Executor框架实现线程池异步任务执行：

ExecutorService executor = Executors.newFixedThreadPool(10);
for (int i = 0; i < 100; i++) {
    executor.submit(() -> {
        //执行异步任务
    });
}
executor.shutdown();

2. 使用Spring框架的ThreadPoolTaskExecutor实现线程池异步任务执行：

@Autowired
private ThreadPoolTaskExecutor executor;

public void doAsyncTask() {
    for (int i = 0; i < 100; i++) {
        executor.execute(() -> {
            //执行异步任务
        });
    }
}

3. 使用自定义的线程池实现异步任务执行：

public class CustomThreadPool {

    private static final int THREAD_POOL_SIZE = 10;

    private ExecutorService executor;

    public CustomThreadPool() {
        executor = new ThreadPoolExecutor(THREAD_POOL_SIZE, THREAD_POOL_SIZE,
                0L, TimeUnit.MILLISECONDS,
                new LinkedBlockingQueue<Runnable>());
    }

    public void execute(Runnable task) {
        executor.execute(task);
    }

    public void shutdown() {
        executor.shutdown();
    }
}

public class AsyncTaskExample {

    public static void main(String[] args) {
        CustomThreadPool threadPool = new CustomThreadPool();
        for (int i = 0; i < 100; i++) {
            threadPool.execute(() -> {
                //执行异步任务
            });
        }
        threadPool.shutdown();
    }
}