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POUnable to fetch correct json string
 

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  1. POUnable to fetch correct json string
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    <p>I am currently working an android app that login users.Upon login, users are allowed name their own create a file. However, upon executing this function as shown below, the return json contain the JSON string of the login details instead.</p> <p>I am using a xmapp server.</p> <p>Does anyone have any idea of the correct way of obtaining the returned json string of the createNewFile details ?</p> <pre><code>public JSONObject createNewFile(String f_id, String userid, String name){ // Building Parameters List params= new ArrayList(); params.add(new BasicNameValuePair("tag", createFile)); params.add(new BasicNameValuePair("fid", fid)); params.add(new BasicNameValuePair("userid", userid)); params.add(new BasicNameValuePair("name", name)); // getting JSON Object JSONObject json = jsonParser.getJSONFromUrl(URL, params); // return json return json; } </code></pre> <p>//use for login</p> <pre><code>public JSONObject loginUsers(String email, String password){ // Building Parameters List params = new ArrayList(); params.add(new BasicNameValuePair("tag", login_tag)); params.add(new BasicNameValuePair("email", email)); params.add(new BasicNameValuePair("password", password)); JSONObject json = jsonParser.getJSONFromUrl(loginURL, params); // return json Log.e("JSON", json.toString()); return json; } </code></pre> <p>This is my <code>JSONPARSER</code> class.</p> <pre><code>public class JSONParser { static InputStream is = null; static JSONObject jObj = null; static String json = ""; // constructor public JSONParser() { } public JSONObject getJSONFromUrl(String url, List params) { // Making HTTP request try { // defaultHttpClient DefaultHttpClient httpClient = new DefaultHttpClient(); HttpPost httpPost = new HttpPost(url); httpPost.setEntity(new UrlEncodedFormEntity(params)); HttpResponse httpResponse = httpClient.execute(httpPost); HttpEntity httpEntity = httpResponse.getEntity(); is = httpEntity.getContent(); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (ClientProtocolException e) { e.printStackTrace(); } 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) { sb.append(line + "n"); } is.close(); json = sb.toString(); Log.e("JSON", json); } catch (Exception e) { Log.e("Buffer Error", "Error converting result " + e.toString()); } // try parse the string to a JSON object try { jObj = new JSONObject(json); } catch (JSONException e) { Log.e("JSON Parser", "Error parsing data " + e.toString()); } // return JSON String return jObj; } } </code></pre> <p>Php files:</p> <p>DB_Functions</p> <pre><code>public function storeFile($fid, $userid, $name){ $con = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD); mysqli_select_db($con, DB_DATABASE); $result = mysqli_query($con,"INSERT INTO file_info(fid, userid, name) VALUES('$fid', '$userid', '$name', NOW())"); // check for successful store if ($result) { // get file details $fid = mysqli_insert_id($con); // last inserted id $result = mysqli_query($con,"SELECT * FROM file_info WHERE fid = $fid"); // return file details return mysqli_fetch_array($result); } else { return false; } } </code></pre> <p>index.php</p> <pre><code> //add_file if ($tag == 'add_file') { // Request type is add new file $fid = $_POST['fid']; $userid = $_POST['userid']; $name = $_POST['name']; $file_info= $db-&gt;storeFile($fid, $userid, $name); if ($file_info) { // user stored successfully $response["success"] = 1; $response["fid"] = $file_info["fid"]; $response["file_info"]["userid"] = $file_info["userid"]; $response["file_info"]["name"] = $ufile_info["name"]; echo json_encode($response); } else { // user failed to store $response["error"] = 1; $response["error_msg"] = "Error occured in Adding"; echo json_encode($response); } }else { echo "Invalid Request"; } } else { echo "Access Denied"; } </code></pre> <p>Error faced: </p> <pre><code>Invalid RequestInvalid Requestn Error parsing data org.json.JSONException: Value Invalid of type java.lang.String cannot be converted to JSONObject </code></pre>
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    1. USpancakeleh
    1. USpancakeleh
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      1. POUnable to fetch correct json string
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      1. VTApproveEditSuggestion
    1. COPlease also post the JSON you are trying to parse.
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      1. POUnable to fetch correct json string
      1. USJhanvi
    2. COcan you print the response of Log.e("JSON", json);
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      1. USnitesh goel
    3. COagree with @Jhanvi , you had better post the JSON you are trying to parse, and please make sure the "iso-8859-1" is exactly the charset the server-side used.
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      1. POUnable to fetch correct json string
      1. USMerlin
 

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