Passing data to http GET request as header

HttpGetHeaderData

	private void getRequest(String urlString) {

		URL url;

		InputStream response = null;
		try {
			url = new URL(urlString);
			HttpURLConnection connection;
			connection = (HttpURLConnection) url.openConnection();
			connection.setRequestMethod("GET");
			connection.setRequestProperty("phonenumber", "1234");
			connection.setRequestProperty("authtoken", "1234");
			response = connection.getInputStream();
			String stringRep=IOUtils.toString(response);
			JSONArray responseArray = new JSONArray(stringRep);
			//jsonobject = new JSONObject(stringRep);
			listData=new ArrayList<HashMap<String,String>>();
			
			for(int i=0; i<responseArray.length();i++){

				mapData=new HashMap<String, String>();
				JSONObject temp_obj = responseArray.getJSONObject(i);
				mapData.put("id", temp_obj.getInt("id")+"");
				mapData.put("name",  temp_obj.getString("name"));
				mapData.put("description",  temp_obj.getString("description"));
				mapData.put("isactive",  temp_obj.getBoolean("isactive")+"");
				listData.add(mapData);
			}
			
			System.out.println(listData);

		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} catch (JSONException e) {
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		} 
	}