通过管道实现文件的拷贝

标签：min   stack   tac   shu   system   shutdown   try   byte   pip   

public class Demo {  

//通过管道完成文件的拷贝  

public static void main(String[] arg)  {

  PipedInputStream in =new PipedInputStream();

  PipedOutputStream out;

  try {

   out = new PipedOutputStream(in);

   sender s =new sender(out);

   receiver  r =new receiver(in);

   ExecutorService service =Executors.newCachedThreadPool();

   service.execute(s);

   service.execute(r);

   service.shutdown();

   service.awaitTermination(1, TimeUnit.DAYS);

  } catch (Exception e) {

   // TODO 自动生成的 catch 块

   e.printStackTrace();

  }

 } }

class sender implements Runnable{

 PipedOutputStream out =null;

 sender(PipedOutputStream temp){

  out =temp;  }

 @Override  public void run() {

  // TODO 自动生成的方法存根

  File file = new File("D:\\aa.log");

  FileInputStream inStream;

  try {

   inStream = new FileInputStream(file);

   byte[] buff=new byte[1024];

   int len =0;

   while((len = inStream.read(buff))!=-1) {

              out.write(buff,0,len);

   }

       out.close();

      inStream.close();

      System.out.println("完成文件读取");

  } catch (Exception e) {

   // TODO 自动生成的 catch 块

   e.printStackTrace();

  }

 } 

}

class receiver implements Runnable{

 PipedInputStream in;

 public receiver(PipedInputStream temp) {

  in = temp;

 }

 @Override  public void run() {

  // TODO 自动生成的方法存根

        try {

   FileOutputStream outStream =new FileOutputStream("F:\\kk.log");

       byte[] buff =new byte[1024];

   int len=0;

   while((len=in.read(buff))!=-1) {

      outStream.write(buff, 0, len);

      outStream.flush();

   } 

          outStream.close();

   in.close();

      System.out.println("完成新文件写入");

  } catch (Exception e) {

   // TODO 自动生成的 catch 块

   e.printStackTrace();

  }  }  }

通过管道实现文件的拷贝

标签：min   stack   tac   shu   system   shutdown   try   byte   pip   

原文地址：https://www.cnblogs.com/jack-L/p/10472169.html