管道流的简单例子

public class PipedStreamDemo  {
	public static void main(String[] args) throws IOException {
		PipedOutputStream out = new PipedOutputStream();
		PipedInputStream in = new PipedInputStream(out);
		Input input = new Input(in);
		Output output = new Output(out);
		input.start();
		output.start();
	}
	static class Input extends Thread{
		PipedInputStream in;
		public Input(PipedInputStream in){
			this.in = in;
		}
		public void run() {
			byte[] bytes = new byte[1024];
			try {
				while(true){
					//因为read方法是阻塞式的,没数据就等待,有数据立刻就读
					int i = in.read(bytes);
					String str = new String(bytes,0,i);
					System.out.println("接收线程##"+str);
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
		
	}
	static class Output extends Thread{
		PipedOutputStream out;
		public Output(PipedOutputStream out){
			this.out = out;
		}
		public void run() {
			try {
				while(true){
					InputStream is = System.in;
					byte[] bytes = new byte[1024];
					int len = is.read(bytes);
					out.write(new String(bytes,0,len).getBytes());
					out.flush();
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		
	}
}

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