/* Configure the connection using POST, not putting sensitive data 
 * into the address-line */
URL url = new URL(reqp);

HttpsURLConnection socket = (HttpsURLConnection) url.openConnection();
socket.setRequestMethod("POST");
socket.setDoOutput(true);
socket.setDoInput(true);
socket.connect();


/* Defining the Request 
 * Please Note that the RequestMethod, Content-Length and 
 * Content-Type should be declared using socket.setRequestProperty,
 * however this did not work properly. 
 */


String req=


    "POST "+reqp+" HTTP/1.1\r\n"+


    "Content-Length: "+data.length()+"\r\n"+


    "Content-Type: application/x-www-form-urlencoded\r\n"+


    "\r\n"+


    data;



/* Configuring the writer for writing TO THE CONNECTION */
OutputStream out = socket.getOutputStream();
out.write(req.getBytes("UTF-8"));




/* Configuring the InputStream collecting the result-data*/
InputStream in = socket.getInputStream();



/* Write the response to a file */
filename = intmsgnr+"RES.TXT";            
FileOutputStream writer = new FileOutputStream(filename);

byte[] buffer = new byte[1024];
int numRead;
long numWritten = 0;
while ((numRead = in.read(buffer)) != -1) {
    writer.write(buffer, 0, numRead);
    numWritten += numRead;
}