Client - Server Beispiel

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */


package ue.cln;


import java.io.*;


import java.net.*;




public class Client {


    public static void main(String[] args)throws IOException, UnknownHostException{




        System.out.println("*CLIENT*");


        Socket svSocket = null;
        PrintWriter out = null;
        BufferedReader inps = null;




        try{


            svSocket = new Socket("localhost", 49000);


            out  = new PrintWriter(svSocket.getOutputStream(), true);

            inps = new BufferedReader(new InputStreamReader(svSocket.getInputStream()));


        }catch(UnknownHostException e){

        }catch(IOException e){


        }




        // Speichere den standard Input
        InputStreamReader sIN = new InputStreamReader(System.in);
        BufferedReader standardIN = new BufferedReader(sIN);


        String toServer = null;
        String fromServer = null;




        out.println("Hallo von" + svSocket.getLocalSocketAddress());
        while((fromServer = inps.readLine())!= null ){


            System.out.println("ICH " + toServer);


            fromServer = inps.readLine();

            System.out.println("Server : " + fromServer);


            


            




        }




        out.close();
        inps.close();
        standardIN.close();
        svSocket.close();














    }








}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */


package ue.srv;


import java.io.*;
import java.net.*;




public class Server {


    public static void main(String[] args) throws IOException{


        System.out.println("*SERVER*");


        ServerSocket serverSocket = null;


        try{






            serverSocket = new ServerSocket(49000);


        }catch(IOException e){




            System.err.println("Socket number  do");
            System.exit(1);
        }




        //System.out.println();
        //System.out.println("Server name " + serverSocket.toString());
 
        Socket clientSocket = null;


        try{


            clientSocket = serverSocket.accept();
            System.out.println("Verbunden mit " + clientSocket.getRemoteSocketAddress());




        }catch(IOException e){




            System.err.println("accept() failed big time");
            System.exit(1);

        }




        // Socket Output
        PrintWriter out = new PrintWriter(clientSocket.getOutputStream());


        //Socket Input
        BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));




        String toClient, fromClient;


        //toClient = " Hallo Client";
        //out.println(toClient);
        //Input von der Console


        BufferedReader standardIn = new BufferedReader(new InputStreamReader(System.in));


        while((fromClient = in.readLine()) != null){

            System.out.println("Client : " + fromClient );

            toClient = standardIn.readLine();



            System.out.println(" ICH : " + toClient);
            out.println(toClient);
            if(fromClient.equals("!exit")) break;








        }


        out.close();
        in.close();
        clientSocket.close();
        serverSocket.close();






        




    }








}

[COLOR=Red]while((fromServer = inps.readLine())!= null ){


            System.out.println("ICH " + toServer);


            fromServer = inps.readLine();

            System.out.println("Server : " + fromServer);


            


            




        }[/COLOR]

[COLOR=SeaGreen]while((fromServer = inps.readLine())!= null ){


            System.out.println("Server : " + fromServer);




            toServer = standardIN.readLine();
            out.println(toServer); 
            System.out.println("ICH " + toServer);

       }[/COLOR]