UDP网络开发实例
程序员文章站
2024-02-01 13:18:22
...
- /**
- *UDPServer
- *@author Winty wintys@gmail.com
- *@version 2008-12-15
- */
- import java.io.*;
- import java.net.*;
- class UDPServer{
- public static void main(String[] args)throws IOException{
- DatagramSocket server = new DatagramSocket(5050);
- byte[] recvBuf = new byte[100];
- DatagramPacket recvPacket
- = new DatagramPacket(recvBuf , recvBuf.length);
- server.receive(recvPacket);
- String recvStr = new String(recvPacket.getData() , 0 , recvPacket.getLength());
- System.out.println("Hello World!" + recvStr);
- int port = recvPacket.getPort();
- InetAddress addr = recvPacket.getAddress();
- String sendStr = "Hello ! I'm Server";
- byte[] sendBuf;
- sendBuf = sendStr.getBytes();
- DatagramPacket sendPacket
- = new DatagramPacket(sendBuf , sendBuf.length , addr , port );
- server.send(sendPacket);
- server.close();
- }
- }
- /**
- *UDPClient
- *@author Winty wintys@gmail.com
- *@version 2008-12-15
- */
- import java.io.*;
- import java.net.*;
- class UDPClient{
- public static void main(String[] args)throws IOException{
- DatagramSocket client = new DatagramSocket();
- String sendStr = "Hello! I'm Client";
- byte[] sendBuf;
- sendBuf = sendStr.getBytes();
- InetAddress addr = InetAddress.getByName("127.0.0.1");
- int port = 5050;
- DatagramPacket sendPacket
- = new DatagramPacket(sendBuf ,sendBuf.length , addr , port);
- client.send(sendPacket);
- byte[] recvBuf = new byte[100];
- DatagramPacket recvPacket
- = new DatagramPacket(recvBuf , recvBuf.length);
- client.receive(recvPacket);
- String recvStr = new String(recvPacket.getData() , 0 ,recvPacket.getLength());
- System.out.println("收到:" + recvStr);
- client.close();
- }
- }
上一篇: 网络画图板(一)
下一篇: 网站优化:如何使关键词排名稳定在百度首页