try { // 1. create HttpClient HttpClient httpclient = new DefaultHttpClient(); // 2. make POST request to the given URL HttpPost httpPost = new HttpPost(url); String json = ""; // 3. build jsonObject JSONObject jsonObject = new JSONObject(); jsonObject.accumulate("foo1", "test"); jsonObject.accumulate("foo2", "test2"); // 4. convert JSONObject to JSON to String json = jsonObject.toString(); // ** Alternative way to convert Person object to JSON string usin Jackson Lib // ObjectMapper mapper = new ObjectMapper(); // json = mapper.writeValueAsString(person); // 5. set json to StringEntity StringEntity se = new StringEntity(json); // 6. set httpPost Entity httpPost.setEntity(se); // 7. Set some headers to inform server about the type of the content httpPost.setHeader("Accept", "application/json"); httpPost.setHeader("Content-type", "application/json"); // 8. Execute POST request to the given URL HttpResponse httpResponse = httpclient.execute(httpPost); // 9. receive response as inputStream inputStream = httpResponse.getEntity().getContent(); // 10. convert inputstream to string if(inputStream != null) result = convertInputStreamToString(inputStream); else result = "Did not work!"; } catch (Exception e) { Log.d("InputStream", e.getLocalizedMessage()); }

As per your Edited Question, I think you have to use **[HttpGet][1]** to send your authentication on Server.
[**Here**][2] I found example of HttpGet request in Android.
and also **[Here][3]** found StackOverflow Solution.

##**EDITED:**
I have checked your [**POSTMAN**][4] and found that your server accepting JSON Data. You can see in Image:
![enter image description here][5]
so now you have to try this code:

@Override protected Void doInBackground(Void... arg0) {
// Creating service handler class instance usernamefromuser = user.getText().toString(); passfromuser = pass.getText().toString();
InputStream inputStream = null; String result = ""; try { // 1. create HttpClient HttpClient httpclient = new DefaultHttpClient(); // 2. make POST request to the given URL HttpPost httpPost = new HttpPost(url); String json = ""; // 3. build jsonObject JSONObject jsonObject = new JSONObject(); jsonObject.accumulate("email", usernamefromuser); jsonObject.accumulate("pass", passfromuser); // 4. convert JSONObject to JSON to String json = jsonObject.toString(); // ** Alternative way to convert Person object to JSON string usin Jackson Lib // ObjectMapper mapper = new ObjectMapper(); // json = mapper.writeValueAsString(person); // 5. set json to StringEntity StringEntity se = new StringEntity(json); // 6. set httpPost Entity httpPost.setEntity(se); // 7. Set some headers to inform server about the type of the content httpPost.setHeader("Accept", "application/json"); httpPost.setHeader("Content-type", "application/json"); // 8. Execute POST request to the given URL HttpResponse httpResponse = httpclient.execute(httpPost); responsecode = httpresponse.getStatusLine().getStatusCode(); responseStr = EntityUtils.toString(httpresponse.getEntity()); } catch (Exception e) { Log.d("InputStream", e.getLocalizedMessage()); } return null; }
Sorry for late found the solution.

[1]: http://developer.android.com/reference/org/apache/http/client/methods/HttpGet.html [2]: http://www.tutorialspoint.com/android/android_php_mysql.htm [3]: https://stackoverflow.com/a/4660576/1318946 [4]: https://chrome.google.com/webstore/detail/postman-rest-client/fdmmgilgnpjigdojojpjoooidkmcomcm?hl=en [5]: http://i.stack.imgur.com/TVtPg.png