关闭底层资源强行中断

对于IO这种资源无法通过interrupt()方法中断，但是在实际应用中想中断的话，可以尝试关闭任务在其上发生中断的底层资源。
=================

public class IOBlocked implements Runnable{

	private InputStream is;
	
	public IOBlocked(InputStream is) {
		this.is=is;
	}
	
	
	@Override
	public void run() {
		// TODO Auto-generated method stub
		System.out.println("Waiting For Read...");
		try {
			is.read();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			if(Thread.currentThread().isInterrupted()){
				System.out.println("Interrupted from blocked I/O");
			}else{
				throw new RuntimeException(e);
			}
		}
		System.out.println("Exiting IOBlocked.run()");
	}
}

========================强行中断方法==================

public class CloseResource {

	public static void main(String[] args) throws Exception{
		ExecutorService exec=Executors.newCachedThreadPool();
		ServerSocket server=new ServerSocket(8080);
		InputStream socketInput=new Socket("localhost",8080).getInputStream();
		exec.execute(new IOBlocked(socketInput));
		exec.execute(new IOBlocked(System.in));
		TimeUnit.MILLISECONDS.sleep(100);
		System.out.println("shut down all threads");
		exec.shutdownNow();
		TimeUnit.SECONDS.sleep(1);
		System.out.println("closing "+socketInput.getClass().getName());
		socketInput.close();
		TimeUnit.SECONDS.sleep(1);
		System.out.println("closing "+System.in.getClass().getName());
		System.in.close();
		
		
		
		
	}
}

-----------------执行结果如下：
Waiting For Read...
Waiting For Read...
shut down all threads
closing java.net.SocketInputStream
Interrupted from blocked I/O
Exiting IOBlocked.run()
closing java.io.BufferedInputStream