Simple Chat Client?

[Bernd30bln]

Hallo,

Kennt jemand ein einfaches Chat Tutorial.

Ich will einfach nur vom Handy eine message an meinen PC schicken über WLan.

Gruß Bernd

 

[Operator]

Hi,

bitte in Zukunft nur ein Fragezeichen verwende, danke!

 

[K2DaC]

muss das ganze MultiUser fähig sein ?
und soll das Handy oder der PC als Server dienen ?
Reicht die nur quellcode ?
Fragen über Fragen =)

Um mich vom Lernen abzulenken, hier mal ein 20min entwurf einer Kommunikatin zwischen Handy und JavaServer.
Dirty copy und paste ausm internet + eigene Modifikation des Clients für android

Zuerst der Server, in Java. Läuft in Endlosschleife, bis ".bye" als Befehl bzw als Nachricht gesendet wird :

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

public class ChatServer implements Runnable
{  private Socket       socket = null;
   private ServerSocket server = null;
   private Thread       thread = null;
   private DataInputStream  streamIn  =  null;

   public ChatServer()
   {  
      int port = 1337; 
      try
      {  System.out.println("Binding to port " + port + ", please wait  ...");
         server = new ServerSocket(port);  
         System.out.println("Server started: " + server);
         start();
      }
      catch(IOException ioe)
      {  
          System.out.println(ioe); 
      }
   }
   public void run()
   {  while (thread != null)
      {   try
         {  System.out.println("Waiting for a client ..."); 
            socket = server.accept();
            System.out.println("Client accepted: " + socket);
            open();
            boolean done = false;
            while (!done)
            {  try
               {  String line = streamIn.readUTF();
                  System.out.println(line);
                  done = line.equals(".bye");
               }
               catch(IOException ioe)
               {  done = true;  }
            }
            close();
         }
         catch(IOException ie)
         {  System.out.println("Acceptance Error: " + ie);  }
      }
   }
   public void start()
   {  if (thread == null)
      {  thread = new Thread(this); 
         thread.start();
      }
   }
   @SuppressWarnings("deprecation")
   public void stop()
   {  if (thread != null)
      {  thread.stop(); 
         thread = null;
      }
   }
   public void open() throws IOException
   {  streamIn = new DataInputStream(new 
                        BufferedInputStream(socket.getInputStream()));
   }
   public void close() throws IOException
   {  if (socket != null)    socket.close();
      if (streamIn != null)  streamIn.close();
   }
   public static void main(String args[])
   {  
       ChatServer server =  new ChatServer();
   }
}

und hier der Client

package de.MyChatCientApp;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.EditText;

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


public class MyChatCientApp extends Activity {
    /** Called when the activity is first created. */
    String ip = "0";
    ChatClient client = null;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
         
         
         
    }
    
    public void onSendClick(View v)
    {
        EditText nachricht = (EditText) this.findViewById(R.id.EditText01);
        String msg = nachricht.getText().toString();
        client.send(msg);
        
    }
    
    public void onConnectClick(View v)
    {
        EditText AdressEditText = (EditText) this.findViewById(R.id.EditText02);
        ip = AdressEditText.getText().toString();
        int port = 1337;
        client =  new ChatClient(ip, port);
    }
}




class ChatClient
{  
   private Socket socket              = null;
   private DataInputStream  console   = null;
   private DataOutputStream streamOut = null;

   public ChatClient(String serverName, int serverPort)
   {  System.out.println("Establishing connection. Please wait ...");
      try
      {  socket = new Socket(serverName, serverPort);
         Log.d("DEBUG","Connected: " + socket);
         start();
      }
      catch(UnknownHostException uhe)
      {  Log.d("DEBUG","Host unknown: " + uhe.getMessage());
      }
      catch(IOException ioe)
      {  Log.d("DEBUG","Unexpected exception: " + ioe.getMessage());
      }
      
     
   }
   
   public void start() throws IOException
   {  
      console   = new DataInputStream(System.in);
      streamOut = new DataOutputStream(socket.getOutputStream());
   }
   
   public void stop()
   {  try
      {  if (console   != null)  console.close();
         if (streamOut != null)  streamOut.close();
         if (socket    != null)  socket.close();
      }
      catch(IOException ioe)
      {  System.out.println("Error closing ...");
      }
   }
   
   public void send(String msg)
   {
       try
       {  
          streamOut.writeUTF(msg);
          streamOut.flush();
       }
       catch(IOException ioe)
       {  
           Log.d("DEBUG","Sending error: " + ioe.getMessage());
       }
   }
  
}

Die main.XML

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout android:id="@+id/RelativeLayout01" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"><EditText android:id="@+id/EditText01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:width="300px"></EditText>
<TextView android:layout_height="wrap_content" android:id="@+id/TextView01" android:layout_toRightOf="@+id/EditText01" android:layout_width="wrap_content" android:text="Nachricht"></TextView><Button android:layout_height="wrap_content" android:id="@+id/Button01" android:layout_below="@+id/EditText01" android:layout_width="wrap_content" android:text="Send" android:onClick="onSendClick"></Button>
<EditText android:layout_height="wrap_content" android:id="@+id/EditText02" android:layout_below="@+id/Button01" android:layout_width="wrap_content" android:text="127.0.0.1" android:width="300px"></EditText>

<Button android:layout_height="wrap_content" android:id="@+id/Button02" android:layout_below="@+id/EditText02" android:layout_width="wrap_content" android:text="connect" android:onClick="onConnectClick"></Button><TextView android:layout_height="wrap_content" android:id="@+id/TextView02" android:layout_below="@+id/Button01" android:layout_toRightOf="@+id/EditText02" android:layout_width="wrap_content" android:text="Server IP"></TextView>

</RelativeLayout>

und im Manifest
<uses-permission android:name="android.permission.INTERNET" />
nicht vergessen !

Anbei noch ein BeweisScreen

 

[Bernd30bln]

Hallo K2DaC,

Danke für die Hilfe stellung.

Gruß Bernd