Java知识点总结（JavaiO-管道流）

@(Java知识点总结)[Java, JavaIO]

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管道流的主要作用是可以进行两个线程间的通信。

  如果要进行管道输出，则必须把输出流连接在输入流上，在PiPEOutputStream类上有如下方法用于连接管道。  

public class Demo07 {      public static void main(String[] args) {     Send s = new Send();          Receive r = new Receive();          try {        s.getPos().connect(r.getPis());     } catch (IOException e) {       e.PRintStackTrace();     }          new Thread(s).start();     new Thread(r).start();   }   }     class  Send implements Runnable{   private PipedOutputStream pos = null;      public Send (){     this.pos = new PipedOutputStream();   }     @override   public void run() {     String s = "hello world";     try {       pos.wrITe(s.getBytes());     } catch (IOException e) {       e.printStackTrace();     }     try {       pos.close();     } catch (IOException e) {       e.printStackTrace();     }   }     public PipedOutputStream getPos() {     return pos ;   }    }      class  Receive implements Runnable{     private PipedInputStream pis;        public Receive() {       this.pis = new PipedInputStream();     }       @Override     public void run() {       byte[] b = new byte[1024];       int len = 0;       try {         len = this.pis.read(b);       } catch (IOException e) {         e.printStackTrace();       }              try {         pis.close();       } catch (IOException e) {         e.printStackTrace();       }              System.out.println("接收的内容为:" + new String (b,0,len));     }       public PipedInputStream getPis() {       return pis;     }   }