网站设计的公司概况简介,动漫制作专业名人作品展示,东莞离莞最新规定,查域名被墙上文讲了UDP回响服务器客户端简单代码编写
本文将讲述UDP字典服务器客户端简单代码编写。所谓回显#xff0c;就是指客户端向服务器发送一个报文#xff0c;从服务器那里得到一条一模一样的回响报文
而我们的字典功能呢#xff0c;则是实现了输入中文#xff0c;得到对应…上文讲了UDP回响服务器客户端简单代码编写
本文将讲述UDP字典服务器客户端简单代码编写。所谓回显就是指客户端向服务器发送一个报文从服务器那里得到一条一模一样的回响报文
而我们的字典功能呢则是实现了输入中文得到对应的英文
1、代码讲解
要实现这个功能我们只需要对process()方法进行修改即对处理request返回response这个功能进行修改
要实现字典功能我们在构造方法里定义一个Map数据结构在Map中放入要翻译的词汇
public UdpDictServer(int port) throws SocketException {socket new DatagramSocket(port);map.put(小狗,dog);map.put(小猫,cat);map.put(猪猪,pig);
}
然后对process()方法进行修改
public static String process(String key){return map.get(key);
}
其余代码与回响程序相同
2、完整代码
服务器端完整代码
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.SocketException;
import java.util.HashMap;
import java.util.Map;public class UdpDictServer {public static DatagramSocket socket null;static MapString,String map new HashMap();public UdpDictServer(int port) throws SocketException {socket new DatagramSocket(port);map.put(小狗,dog);map.put(小猫,cat);map.put(猪猪,pig);}public static void start() throws IOException {System.out.println(服务器开始);while (true){DatagramPacket requestPacket new DatagramPacket(new byte[1024],1024);socket.receive(requestPacket);String request new String(requestPacket.getData(),0,requestPacket.getLength());String response process(request);DatagramPacket responsePacket new DatagramPacket(response.getBytes(),response.getBytes().length, requestPacket.getSocketAddress());socket.send(responsePacket);System.out.printf([%s:%d] rec:%s,resp:%s,requestPacket.getAddress().toString(),requestPacket.getPort(),request,response);}}public static String process(String key){return map.get(key);}public static void main(String[] args) throws IOException {UdpDictServer server new UdpDictServer(9090);server.start();}
}客户端完整代码
import UDPecho.UdpEchoClient;import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.SocketException;
import java.util.Scanner;public class UdpDictClient {public static DatagramSocket socket null;private static String ip null;private static int port 0;public UdpDictClient(String ip,int port) throws SocketException {socket new DatagramSocket();this.ip ip;this.port port;}public static void start() throws IOException {System.out.println(客户端开始);Scanner scanner new Scanner(System.in);while (true){System.out.print(-);String request scanner.next();DatagramPacket requestPacket new DatagramPacket(request.getBytes(),request.getBytes().length, InetAddress.getByName(ip),port);socket.send(requestPacket);DatagramPacket responsePacket new DatagramPacket(new byte[1024],1024);socket.receive(responsePacket);String response new String(responsePacket.getData(),0,responsePacket.getLength());System.out.println(response);}}public static void main(String[] args) throws IOException {UdpDictClient client new UdpDictClient(127.0.0.1,9090);client.start();}
}实现结果
