Hi
I'm implementing a program which uses sockets to communicate between
the client and server. I am getting this to work fine with just a
message. However, I want to have an EditText field in my application,
which when I hit a 'Send' button, sends the text from the field to my
server and logs it. I am trying to implement this, but my program
always crashes. Any help would be appreciated. Here is my code:
Android Client:
public class SocketTest extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Thread sThread = new Thread(new TCPServer());
Thread cThread = new Thread(new TCPClient());
sThread.start();
try {
Thread.sleep(1000);
} catch (InterruptedException e) { }
cThread.start();
}
}
TCP Server:
public class TCPServer implements Runnable{
public static final String SERVERIP = "127.0.0.1";
public static final int SERVERPORT = 8888;
public void run() {
try {
Log.d("TCP", "S: Connecting...");
ServerSocket serverSocket = new ServerSocket
(SERVERPORT);
while (true) {
Socket client = serverSocket.accept();
Log.d("TCP", "S: Receiving...");
try {
BufferedReader in = new BufferedReader(new
InputStreamReader(client.getInputStream()));
String str = in.readLine();
Log.d("TCP", "S: Received: '" + str + "'");
} catch(Exception e) {
Log.e("TCP", "S: Error", e);
} finally {
client.close();
Log.d("TCP", "S: Done.");
}
}
} catch (Exception e) {
Log.e("TCP", "S: Error", e);
}
}
}
TCP Client:
public class TCPClient extends Activity implements Runnable {
final EditText msg = (EditText) findViewById(R.id.message);
final Button sendButton = (Button) findViewById(R.id.sendserver);
public void run() {
sendButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
try {
InetAddress serverAddr =
InetAddress.getLocalHost();
Log.d("TCP", "C: Connecting...");
Socket socket = new Socket(serverAddr,
TCPServer.SERVERPORT);
String message = msg.toString();
try {
Log.d("TCP", "C: Sending: '" + message
+ "'");
PrintWriter out = new PrintWriter( new
BufferedWriter( new OutputStreamWriter(socket.getOutputStream
())),true);
out.println(message);
Log.d("TCP", "C: Sent.");
Log.d("TCP", "C: Done.");
} catch(Exception e) {
Log.e("TCP", "S: Error", e);
} finally {
socket.close();
}
} catch (Exception e) {
Log.e("TCP", "C: Error", e);
}
}
}) ;
}
}
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