java udp文件传输

发布日期：2013-04-03 13:23:54
//Send
  DatagramSocket ds = new DatagramSocket(5555, InetAddress.getByName("10.0.0.1"));
  InputStream in = new FileInputStream(new File("a.txt"));
  byte[] b = new byte[10240];
  int c = in.read(b);
  in.close();
  DatagramPacket dp = new DatagramPacket(b, c);
  ds.send(dp);

//Receive
  DatagramSocket ds2 = new DatagramSocket(5555);
  DatagramPacket dp2 = new DatagramPacket(b,b.length);
  ds2.receive(dp2);
  OutputStream out=new FileOutputStream(new File("out.txt"));
  out.write(dp2.getData());
  out.close();