wifi direct를 이용해서 파일 송신 할 때 econnrefused error

Question

 wifi direct를 통해서 원하는 uri에 있는 여러개의 데이터를 보내려고하는데요 

android example 로 제공하는 wifi direct demo code를 이용하고 있습니다.

code를 구성하였을 때 수신하는 부분에서는 데이터를 보내는 만큼 잘 받는데 송신단에서 아래와 같이 error가 발생합니다.

송신단에서 error가 발생하는데 수신단은 잘 받네요;;

 

protected void onHandleIntent(Intent intent) {

        Context context = getApplicationContext();
        if (intent.getAction().equals(ACTION_SEND_FILE)) {
            String fileUri = intent.getExtras().getString(EXTRAS_FILE_PATH);
            String host = intent.getExtras().getString(EXTRAS_GROUP_OWNER_ADDRESS);
            Socket socket = new Socket();
            int port = intent.getExtras().getInt(EXTRAS_GROUP_OWNER_PORT);

            try {
                Log.d(WiFiDirectActivity.TAG, "Opening client socket - ");
                socket.bind(null);
                socket.connect((new InetSocketAddress(host, port)), SOCKET_TIMEOUT);

                Log.d(WiFiDirectActivity.TAG, "Client socket - " + socket.isConnected());
                OutputStream stream = socket.getOutputStream();
                ContentResolver cr = context.getContentResolver();
                InputStream is = null;
                try {
                    is = cr.openInputStream(Uri.parse(fileUri));
                } catch (FileNotFoundException e) {
                    Log.d(WiFiDirectActivity.TAG, e.toString());
                }
                DeviceDetailFragment.copyFile(is, stream);
                Log.d(WiFiDirectActivity.TAG, "Client: Data written");
            } catch (IOException e) {
                Log.e(WiFiDirectActivity.TAG, e.getMessage());
            } finally {
                if (socket != null) {
                    if (socket.isConnected()) {
                        try {
                            socket.close();
                            Log.d(WiFiDirectActivity.TAG, "closing client socket - ");
                        } catch (IOException e) {
                            // Give up
                            e.printStackTrace();
                        }
                    }
                }
            }

위에가 송신하는 부분 code부분이고요

 

protected void onHandleIntent(Intent intent) {

        Context context = getApplicationContext();
        if (intent.getAction().equals(ACTION_SEND_FILE)) {
            String fileUri = intent.getExtras().getString(EXTRAS_FILE_PATH);
            String host = intent.getExtras().getString(EXTRAS_GROUP_OWNER_ADDRESS);
            Socket socket = new Socket();
            int port = intent.getExtras().getInt(EXTRAS_GROUP_OWNER_PORT);

            try {
                Log.d(WiFiDirectActivity.TAG, "Opening client socket - ");
                socket.bind(null);
                socket.connect((new InetSocketAddress(host, port)), SOCKET_TIMEOUT);

                Log.d(WiFiDirectActivity.TAG, "Client socket - " + socket.isConnected());
                OutputStream stream = socket.getOutputStream();
                ContentResolver cr = context.getContentResolver();
                InputStream is = null;
                try {
                    is = cr.openInputStream(Uri.parse(fileUri));
                } catch (FileNotFoundException e) {
                    Log.d(WiFiDirectActivity.TAG, e.toString());
                }
                DeviceDetailFragment.copyFile(is, stream);
                Log.d(WiFiDirectActivity.TAG, "Client: Data written");
            } catch (IOException e) {
                Log.e(WiFiDirectActivity.TAG, e.getMessage());
            } finally {
                if (socket != null) {
                    if (socket.isConnected()) {
                        try {
                            socket.close();
                            Log.d(WiFiDirectActivity.TAG, "closing client socket - ");
                        } catch (IOException e) {
                            // Give up
                            e.printStackTrace();
                        }
                    }
                }
            }

        }

위가 수신단 쪽 code입니다.

 

제가 아직 잘 몰라서 송신과 수신은 데이터 갯수만큼 코드를 붙여넣고 있습니다 ...