private  class UploadFile extends AsyncTask<String, Integer, String> {
        URL connectURL;
        String responseString="";
        String Title;
        String Description="";
        byte[] dataToServer;
        FileInputStream fileInputStream = null;
        private PowerManager.WakeLock mWakeLock;
        private Context context;
        UploadFile(Context context){
            this.context=context;

        }
        @Override
        protected String doInBackground(String... urls) {
            HttpURLConnection conn = null;
            DataOutputStream dos = null;
            DataInputStream inStream = null;
            // String existingFileName = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Bluetooth/my.txt";
            String existingFileName = "/sdcard/inventar.db";
            String lineEnd = "\r\n";
            String twoHyphens = "--";
            String boundary = "*****";
            int bytesRead, bytesAvailable, bufferSize;
            byte[] buffer;
            int maxBufferSize = 1 * 1024 * 1024;
            String responseFromServer = "";
          //  String urlString = "http://192.168.0.101:8079/upload";
            String urlString = urls[0];
            String filename = urls[1];

            try {
                File file=new File(existingFileName);
                long fileLength= file.length();

                FileInputStream fileInputStream = new FileInputStream(file);

                URL url = new URL(urlString);

                conn = (HttpURLConnection) url.openConnection();

                conn.setDoInput(true);

                conn.setDoOutput(true);

                conn.setUseCaches(false);

                conn.setRequestMethod("POST");
                conn.setRequestProperty("Connection", "Keep-Alive");
                conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
                dos = new DataOutputStream(conn.getOutputStream());
                dos.writeBytes(twoHyphens + boundary + lineEnd);

                dos.writeBytes("Content-Disposition: form-data; name=\"description\"" + lineEnd);
                dos.writeBytes(lineEnd);
                dos.writeBytes(Description);
                dos.writeBytes(lineEnd);
                dos.writeBytes(twoHyphens + boundary + lineEnd);
               //  String filestr="inventarsaveyyy.db";
                String filestr=filename;
                dos.writeBytes("Content-Disposition: form-data; name=\"fileName\"; filename=\"" + filestr /*existingFileName*/ + "\"" + lineEnd);
                dos.writeBytes(lineEnd);


                bytesAvailable = fileInputStream.available();
                bufferSize = Math.min(bytesAvailable, maxBufferSize);
                buffer = new byte[bufferSize];
                // read file and write it into form...
                bytesRead = fileInputStream.read(buffer, 0, bufferSize);
                int total=0;

                while (bytesRead > 0) {

                    dos.write(buffer, 0, bufferSize);
                    bytesAvailable = fileInputStream.available();
                    bufferSize = Math.min(bytesAvailable, maxBufferSize);
                    bytesRead = fileInputStream.read(buffer, 0, bufferSize);
                    total=total+bytesAvailable;
                    publishProgress((int) (total * 100 / fileLength));

                }

                // send multipart form data necesssary after file data...
                dos.writeBytes(lineEnd);
                dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
                // close streams
                Log.e("Debug", "File is written");
                fileInputStream.close();
                dos.flush();
                dos.close();
                // Toast.makeText(context,"File upload", Toast.LENGTH_SHORT).show();
            } catch (Exception e) {
                //  Toast.makeText(context,e.getMessage()+"error", Toast.LENGTH_SHORT).show();
                //return   "Ошибка "+e.getMessage();
            }

            //------------------ read the SERVER RESPONSE
            try {

                inStream = new DataInputStream(conn.getInputStream());
                String str;

                while ((str = inStream.readLine()) != null) {
                    System.out.println(str);
                    responseString=responseString+str+"\r\n";
                    // Toast.makeText(context, str, Toast.LENGTH_SHORT).show();
                }

                inStream.close();

            } catch (Exception ioex) {

                //        Toast.makeText(context, ioex.getMessage() + "error", Toast.LENGTH_SHORT).show();
                return   "Ошибка "+ioex.getMessage();
            }
            return null;
        }

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            // take CPU lock to prevent CPU from going off if the user
            // presses the power button during download
            PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
            mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
                    getClass().getName());
            mWakeLock.acquire();
            mProgressDialog.show();
        }
        @Override
        protected void onProgressUpdate(Integer... progress) {
            super.onProgressUpdate(progress);
            // if we get here, length is known, now set indeterminate to false
            mProgressDialog.setIndeterminate(false);
            mProgressDialog.setMax(100);
            mProgressDialog.setProgress(progress[0]);
        }

        @Override
        protected void onPostExecute(String result) {
            mWakeLock.release();
            mProgressDialog.dismiss();
            if (result != null)
                Toast.makeText(context,"Ошибка загрузки: "+result, Toast.LENGTH_LONG).show();
            else {
                Toast.makeText(context, "File Загружен " + responseString, Toast.LENGTH_SHORT).show();
                try {
                    WorkDB.update_scn();
                    Toast.makeText(context, " SCN обновлён ", Toast.LENGTH_SHORT).show();
                } catch (Exception e) {
                    e.printStackTrace();
                    Toast.makeText(context, " Проблема при обновлении SCN ", Toast.LENGTH_SHORT).show();
                }
            }
        }