Sending Https request but not receiving response

I am sending an Https request to the mysql server but I am not getting a response when doing the same task on the localhost it is running. I have no experience using Https, please give me a solution and explain the difference between sending Http and Https to mysql server, hope someone can help me in advance.

This is my code

protected String doInBackground(String... params) {
                String emailSend = params[0];
                String tokenSend = params[1];
                String deviceIdSend = params[2];
                List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
                nameValuePairs.add(new BasicNameValuePair("email", emailSend));
                nameValuePairs.add(new BasicNameValuePair("token", tokenSend));
                nameValuePairs.add(new BasicNameValuePair("deviceId", deviceIdSend));
                try {
                    HttpClient httpClient = new DefaultHttpClient();
                    HttpPost httpPost = new HttpPost("https://xyz/xyz/xyz.php");
                    httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                    HttpResponse response = httpClient.execute(httpPost);
                    HttpEntity entity = response.getEntity();

                    is = entity.getContent();
                    BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"), 8);
                    StringBuilder sb = new StringBuilder();
                    String line = null;
                    while ((line = reader.readLine()) != null) {
                        sb.append(line);
                    }
                    result = sb.toString();
                } catch (ClientProtocolException e) {

                } catch (IOException e) {

                }
                return "success";
            }
            @Override
            protected void onPostExecute(String resultN) {
                super.onPostExecute(resultN);
                String s = resultN.trim();
                //dialog.dismiss();
                if (s.equalsIgnoreCase("success")) {
                    if (result.contains("Pass")) {