Server端程序

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.ServerSocket;import java.net.Socket;public class Server {        private ServerSocket ss;    private Socket socket;    private BufferedReader in;    private PrintWriter out;    public Server(){        try {            ss=new ServerSocket(10000);            while(true){                socket=ss.accept();                String RemoteIp=socket.getInetAddress().getHostAddress();                String RemotePort=":"+socket.getLocalPort();                System.out.println("A client come in!IP: "+RemoteIp+RemotePort);                in=new BufferedReader(new InputStreamReader(socket.getInputStream()));                String line=in.readLine();                System.out.println("Client send is:"+line);                out=new PrintWriter(socket.getOutputStream(),true);                out.println("Your Message Received!");                out.close();                in.close();                socket.close();                                            }        } catch (IOException e) {            // TODO Auto-generated catch block            out.print("wrong");        }    }    public static void main(String[] args){        new Server();    }        }

Client端程序：

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.Socket;import java.net.UnknownHostException;public class Client {        Socket socket;        BufferedReader in;        PrintWriter out;        public Client(){            System.out.println("try to Connect to 127.0.0.1:10000");            try {                socket=new Socket("127.0.0.1",10000);                System.out.println("The Server Connected!");                System.out.println("Please enter some character:");                BufferedReader line=new BufferedReader(new InputStreamReader(System.in));                out=new PrintWriter(socket.getOutputStream(),true);                out.println(line.readLine());                in=new BufferedReader(new InputStreamReader(socket.getInputStream()));                System.out.println(in.readLine());                out.close();                in.close();                socket.close();                            } catch (UnknownHostException e) {                // TODO Auto-generated catch block                e.printStackTrace();            } catch (IOException e) {                // TODO Auto-generated catch block                out.println("wrong");            }                    }        public static void main(String[] args){            new Client();                    }}