try
                    {
                         HttpClient client = new HttpClient();
                         HttpMethod method = new PostMethod("http://webserver.com/data.php?data=myData");

                         client.executeMethod(method);
                         a.setText("Ok"+method.getResponseBodyAsString());
                         method.releaseConnection();
                    }
                    catch (Exception e)
                    {
                         a.setText("Error");
                    }

postMethod.setRequestBody(InputStream body)

String exsistingFileName = "/sdcard/t1.mp3";

       String lineEnd = "\r\n";
       String twoHyphens = "--";
       String boundary =  "*****";
       try
       {
        //------------------ CLIENT REQUEST
       
            Log.e(Tag,"Inside second Method");

            FileInputStream fileInputStream = new FileInputStream(new File(exsistingFileName) );

        // 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=\"" + exsistingFileName +"\"" + lineEnd);
        dos.writeBytes(lineEnd);

        Log.e(Tag,"Headers are written");

        // 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(Tag,"File is written");
        fileInputStream.close();
        dos.flush();
        dos.close();


       }
       catch (MalformedURLException ex)
       {
            Log.e(Tag, "error: " + ex.getMessage(), ex);
       }

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

File f = new File(aDirectory.getAbsolutePath());