D
daviddy
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Hallo
ich versuche eine App zu entwickeln, dadurch man eine Verbindung mit Android und PC herstellen und daten senden kann. Meine Code für Client(Android) Seite ist:
und Server Seite:
Von meinem Android kann ich leider nicht sendet. Auf eine Antwort freue ich mich sehr.
Grüsse
ich versuche eine App zu entwickeln, dadurch man eine Verbindung mit Android und PC herstellen und daten senden kann. Meine Code für Client(Android) Seite ist:
Code:
public class ClientActivity extends Activity {
/** Called when the activity is first created. */
EditText textOut;
TextView textIn;
EditText ipadress;
EditText port;
String ip = "0";
int UDP_SERVER_PORT=5001;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ipadress = (EditText) findViewById(R.id.ipadresse);
textOut = (EditText) findViewById(R.id.textout);
Button buttonSend = (Button) findViewById(R.id.send);
textIn = (TextView)findViewById(R.id.textin);
buttonSend.setOnClickListener(buttonSendOnClickListener);
}
Button.OnClickListener buttonSendOnClickListener = new Button.OnClickListener() {
public void onClick(View arg0) {
try {
ip = ipadress.getText().toString();
int port =UDP_SERVER_PORT;
InetAddress serverAddr = InetAddress.getByName(ip);
Log.d("UDP", "Connecting..");
DatagramSocket clientsocket = new DatagramSocket(port);
byte[] sendbuf =("Hello from Client").getBytes();
byte[] receivebuf=new byte[1024];
Log.d("UDP","Sending: ' "+new String(sendbuf)+"'");
//new byte[1500];
DatagramPacket sendpacket = new DatagramPacket(sendbuf, sendbuf.length, serverAddr,port);
Log.d("UDP", "Send..");
clientsocket.send(sendpacket);
Log.d("UDP", "Done");
DatagramPacket receivepacket = new DatagramPacket(receivebuf, receivebuf.length);
clientsocket.receive(receivepacket);
String modifiedSentence=new String(receivepacket.getData());
System.out.println("FROM SERVER:"+modifiedSentence);
clientsocket.close();
}catch (Exception e) {
Log.e("UDP", "C: Error", e);
}
}
};
}
Code:
import java.io.*;
import java.net.*;
class UDPServer
{
public static void main(String args[]) throws Exception
{
DatagramSocket serverSocket = new DatagramSocket(5001);
byte[] receiveData = new byte[1024];
byte[] sendData = new byte[1024];
while(true)
{
DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
serverSocket.receive(receivePacket);
String sentence = new String( receivePacket.getData());
System.out.println("RECEIVED: " + sentence);
InetAddress IPAddress = receivePacket.getAddress();
int port = receivePacket.getPort();
String capitalizedSentence = sentence.toUpperCase();
sendData = capitalizedSentence.getBytes();
DatagramPacket sendPacket =
new DatagramPacket(sendData, sendData.length, IPAddress, port);
serverSocket.send(sendPacket);
}
}
}Grüsse
