How to stream a JSON object to a HttpURLConnection POST request

Question

I can not see what is wrong with this code:

JSONObject msg;  //passed in as a parameter to this method

HttpURLConnection httpCon = (HttpURLConnection) url.openC         


        

Answer 1

this without json String post data to server

 class PostLogin extends AsyncTask {
        @Override
        protected String doInBackground(Void... params) {
            String response = null;

            Uri.Builder builder= new Uri.Builder().appendQueryParameter("username","amit").appendQueryParameter("password", "amit");
            String parm=builder.build().getEncodedQuery();
      try
           {

               response = postData("your url here/",parm);
           }catch (Exception e)
           {
               e.printStackTrace();
           }
            Log.d("test", "response string is:" + response);
            return response;
        }
    }


private String postData(String path, String param)throws IOException {
        StringBuffer response = null;

        URL  url = new URL(path);
        HttpURLConnection  connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("POST");
        connection.setDoOutput(true);
//        connection.setRequestProperty("Content-Type", "application/json");
//        connection.setRequestProperty("Accept", "application/json");
            OutputStream out = connection.getOutputStream();
            out.write(param.getBytes());
            out.flush();
            out.close();
            int responseCode = connection.getResponseCode();
            if (responseCode == HttpURLConnection.HTTP_OK) {
                BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream()));
                String line;
                response = new StringBuffer();
                while ((line = br.readLine()) != null) {
                    response.append(line);
                }
                br.close();
            }

        return response.toString();
    }