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内容:简单的UDP通讯例子。
Receiver:
public class Receiver { public static void main(String[] args) { DatagramSocket ds = null; try { //UDP接收端 ds = new DatagramSocket(8080); //定义将UDP的数据包接收到什么地方 byte[] buf = new byte[1024]; //定义UDP的数据接收包 DatagramPacket dp = new DatagramPacket(buf, buf.length); while (true) { //接收数据包 ds.receive(dp); String string = new String(dp.getData(), 0, dp.getLength()); System.out.println("length:" + dp.getLength() + "->" + string); } } catch (SocketException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { if (ds != null) ds.close(); } } }Sender:
public class Sender { public static void main(String[] args) { DatagramSocket ds = null; try { //定义一个UDP的Socket来发送数据 ds = new DatagramSocket(); String hello = "hello world"; //定义一个UDP的数据发送包来发送数据,inetSocketAddress表示要接收的地址 DatagramPacket dp = new DatagramPacket(hello.getBytes(), hello.getBytes().length, new InetSocketAddress("127.0.0.1", 8080)); for (int i = 0; i < 10; i++) { ds.send(dp); Thread.sleep(1000); } } catch (Exception e) { e.printStackTrace(); } finally { if (ds != null) ds.close(); } } }
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原文地址:http://blog.csdn.net/u011345136/article/details/45842753