Uploading file from android to server

private void doFileUpload(){
              HttpURLConnection conn = null;
              DataOutputStream dos = null;
              DataInputStream inStream = null;
              String existingFileName = Environment.getExternalStorageDirectory().getAbsolutePath() + "/mypic.png";
              String lineEnd = "\r\n";
              String twoHyphens = "--";
              String boundary =  "*****";
              int bytesRead, bytesAvailable, bufferSize;
              byte[] buffer;
              int maxBufferSize = 1*1024*1024;
              String responseFromServer = "";
              String urlString = "http://mywebsite.com/directory/upload.php";
              try
              {
               //------------------ CLIENT REQUEST
              FileInputStream fileInputStream = new FileInputStream(new File(existingFileName) );
               // open a URL connection to the Servlet
               URL url = new URL(urlString);
               // Open a HTTP connection to the URL
               conn = (HttpURLConnection) url.openConnection();
               // Allow Inputs
               conn.setDoInput(true);
               // Allow Outputs
               conn.setDoOutput(true);
               // Don't use a cached copy.
               conn.setUseCaches(false);
               // Use a post method.
               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=\"uploadedfile\";filename=\"" + existingFileName + "\"" + lineEnd);
               dos.writeBytes(lineEnd);
               // create a buffer of maximum size
               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);
               while (bytesRead > 0)
               {
                dos.write(buffer, 0, bufferSize);
                bytesAvailable = fileInputStream.available();
                bufferSize = Math.min(bytesAvailable, maxBufferSize);
                bytesRead = fileInputStream.read(buffer, 0, bufferSize);
               }
               // 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();
              }
              catch (MalformedURLException ex)
              {
                   Log.e("Debug", "error: " + ex.getMessage(), ex);
              }
              catch (IOException ioe)
              {
                   Log.e("Debug", "error: " + ioe.getMessage(), ioe);
              }
              //------------------ read the SERVER RESPONSE
              try {
                    inStream = new DataInputStream ( conn.getInputStream() );
                    String str;

                    while (( str = inStream.readLine()) != null)
                    {
                         Log.e("Debug","Server Response "+str);
                    }
                    inStream.close();

              }
              catch (IOException ioex){
                   Log.e("Debug", "error: " + ioex.getMessage(), ioex);
              }
            }

Things to note.
1) I had "mypic.png" within the root directory of the SD card. As in, if you looked at the Android device through Mass Storage USB view you would put the file in the first directory you come across.

2) USB MASS STORAGE MUST BE TURNED OFF ON THE PHONE! Or just completely unplug it from the computer you are writing the code on to assure this is the case.

3) I had to create an "uploads" folder in the same directory as my php file.

4) You obviously must change the web address I have written ashttp://mywebsite.com/directory/upload.php to be your own website.