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[Help] Login Activity using JSON, PHP & MYSQL

ditanyakan oleh Noval Fazriansyah 5 bulan yang lalu

gan minta tolong dong, mentok nih. ini Logcatnya:image alt

ini source code JSONParsernya:

class JSONParser {



private static InputStream is = null;

private static JSONObject jObj = null;

private static String json = "";



JSONParser() {

}

 JSONObject getJSONFromUrl(String url) {



    try {



        DefaultHttpClient httpClient = new DefaultHttpClient();

        HttpPost httpPost = new HttpPost(url);



        HttpResponse httpResponse = httpClient.execute(httpPost);

        HttpEntity httpEntity = httpResponse.getEntity();

        is = httpEntity.getContent();



    } catch (IOException e) {

        e.printStackTrace();

    }



    try {

        BufferedReader reader = new BufferedReader(new InputStreamReader(is, "iso-8859-1"), 8);

        StringBuilder sb = new StringBuilder();

        String line = null;

        while ((line = reader.readLine()) != null) {

           // Log.i("Tag",line);

            sb.append(line).append("\n");

        }

        is.close();

        json = sb.toString();

    } catch (Exception e) {

        Log.e("Buffer_Error", "Error converting result " + e.toString());

    }



    try {

        jObj = new JSONObject(json);

    } catch (JSONException e) {

        Log.e("JSON_Parser", "Error parsing data " + e.toString());

    }



    return jObj;

}

ini source code MainActivitynya:

protected String doInBackground(String... arg0) {

        JSONParser jParser = new JSONParser();

        JSONObject json = jParser.getJSONFromUrl(url);

        try {

               // if (json.getString(success) != null) {

                  //  Log.e("error", "nilai sukses=" + success);

             //   }

            success = json.getString(success);



            Log.e("error", "nilai sukses=" + success);

            JSONArray hasil = json.getJSONArray("login");



            if (success.equals(1)) {

                //if (Integer.parseInt("success") == 1){

                for (int i = 0; i < hasil.length(); i++) {

                    JSONObject c = hasil.getJSONObject(i);



                    String username = c.getString("username").trim();

                    String name = c.getString("name").trim();

                    session.createLoginSession(username, name);

                    Log.e("ok", "ambil data");

                }

                // Log.e("error", "Ya ambil data ok");}

            } else {

                Log.e("Error", "tidak bisa ambil data 0");

            }



        } catch (Exception e) {

            Log.e("Error", "Tidak bisa ambil data 1");

        }

        return null;

    }





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