Java网络编程：UDP服务器客户端示例-优快云博客

本文展示了Java中使用UDP进行网络通信的基本概念，包括UDP服务器端和客户端的实现，通过实例代码演示了如何接收和发送数据包。

package com.socket.test; import java.io.IOException; import java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.SocketException; public class DataGramServer { public static void main(String[] args) { try { DatagramSocket ds = new DatagramSocket(7777); byte[] data = new byte[1024]; DatagramPacket dp = new DatagramPacket(data, data.length); ds.receive(dp); String msg = new String(dp.getData()); System.out.println(msg); ds.close(); } catch (SocketException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } } ********************************************************************************************************************* package com.socket.test; import java.io.IOException; import java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.InetAddress; import java.net.SocketException; public class DataGramClient { public static void main(String[] args) { try { DatagramSocket ds = new DatagramSocket(); String msg = "hello world i cs dota wow"; byte[] data = msg.getBytes(); InetAddress add = InetAddress.getByName("127.0.0.1"); DatagramPacket dp = new DatagramPacket(data, data.length,add,7777); ds.send(dp); ds.close(); } catch (SocketException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }