Android POST request using HttpURLConnection

    public String getJson(String url,JSONObject params){    try {        URL _url = new URL(url);        HttpURLConnection urlConn =(HttpURLConnection)_url.openConnection();        urlConn.setRequestMethod(POSTMETHOD);        urlConn.setRequestProperty("Content-Type", "applicaiton/json; charset=utf-8");        urlConn.setRequestProperty("Accept", "applicaiton/json");        urlConn.setDoOutput(true);        urlConn.connect();        BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(urlConn.getOutputStream()));        writer.write(params.toString());        writer.flush();        writer.close();        if(urlConn.getResponseCode() == HttpURLConnection.HTTP_OK){            is = urlConn.getInputStream();// is is inputstream        } else {            is = urlConn.getErrorStream();        }    } catch (MalformedURLException e) {        e.printStackTrace();    } catch (IOException e) {        e.printStackTrace();    }    try {        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 + "\n");        }        is.close();        response = sb.toString();        Log.e("JSON", response);    } catch (Exception e) {        Log.e("Buffer Error", "Error converting result " + e.toString());    }    return response ;}

You can use the following to post the params

outputStream.writeBytes(jsonParamsString);outputStream.flush();outputStream.close();

Here you have a request using HttpUrlConnection, what you were missing was just read the value from the server.

try {    JSONObject job = new JSONObject(log);    String param1 = job.getString("AuditScheduleDetailID");    String param2 = job.getString("AuditAnswerId");    String param3 = job.getString("LocalFindingID");    String param4 = job.getString("LocalMediaID");    String param5 = job.getString("Files");    String param6 = job.getString("ExtFiles");    Log.d("hasil json", param1 + param2 + param3 + param4 + param5 + param6 + " Kelar id " +            "pertama");    URL url = new URL("myurl");    HttpURLConnection conn = (HttpURLConnection) url.openConnection();    conn.setRequestMethod("POST");    conn.setRequestProperty("Content-Type", "application/json;charset=UTF-8");    conn.setRequestProperty("Accept", "application/json");    conn.setDoOutput(true);    conn.setDoInput(true);    JSONObject jsonParam = new JSONObject();    jsonParam.put("AuditScheduleDetailID", param1);    jsonParam.put("AuditAnswerId", param2);    jsonParam.put("LocalFindingID", param3);    jsonParam.put("LocalMediaID", param4);    jsonParam.put("Files", param5);    jsonParam.put("ExtFiles", param6);    Log.i("JSON", jsonParam.toString());    DataOutputStream os = new DataOutputStream(conn.getOutputStream());    //os.writeBytes(URLEncoder.encode(jsonParam.toString(), "UTF-8"));    os.writeBytes(jsonParam.toString());    os.flush();    os.close();    InputStream is = null;    if(conn.getResponseCode() == HttpURLConnection.HTTP_OK){            is = conn.getInputStream();// is is inputstream        } else {            is = conn.getErrorStream();        }        try {        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 + "\n");        }        is.close();        String response = sb.toString();        //HERE YOU HAVE THE VALUE FROM THE SERVER        Log.d("Your Data", response);    } catch (Exception e) {        Log.e("Buffer Error", "Error converting result " + e.toString());    }    conn.disconnect();} catch (JSONException | IOException e) {    e.printStackTrace();}