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POError JSON Parser android app
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copied!<p>I have a small problem with my code and I can't find why. I get the error parsing data for my email value. The exact error is : </p> <p><code>Error parsing data org.json.JSONException: Value Mail of type java.lang.String cannot be converted to JSONObject.</code></p> <p>It happens after having the Log.d(request!, starting)</p> <p>Here are the code.</p> <p>Activity.java:</p> <pre><code>package com.example.mysqltest; import java.util.ArrayList; import java.util.List; import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair; import org.json.JSONException; import org.json.JSONObject; import android.app.Activity; import android.app.ProgressDialog; import android.content.SharedPreferences; import android.os.AsyncTask; import android.os.Bundle; import android.preference.PreferenceManager; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class ForgotPassword extends Activity implements OnClickListener{ private EditText email; private Button mForgotPassword; // Progress Dialog private ProgressDialog pDialog; // JSON parser class JSONParser jsonParser = new JSONParser(); //php register script private static final String REGISTER_URL = "test"; //ids private static final String TAG_SUCCESS = "success"; private static final String TAG_MESSAGE = "message"; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.activity_forgot_password); email = (EditText)findViewById(R.id.emailforf); mForgotPassword = (Button)findViewById(R.id.forgotPassword); mForgotPassword.setOnClickListener(this); } @Override public void onClick(View v) { // TODO Auto-generated method stub new ForgotPass().execute(); } class ForgotPass extends AsyncTask<String, String, String> { @Override protected void onPreExecute() { super.onPreExecute(); pDialog = new ProgressDialog(ForgotPassword.this); pDialog.setMessage("Retrieving password..."); pDialog.setIndeterminate(false); pDialog.setCancelable(true); pDialog.show(); } @Override protected String doInBackground(String... args) { // TODO Auto-generated method stub // Check for success tag int success; String emails = email.getText().toString(); if (emails instanceof String){ Log.d("lol","ok"); }else{ Log.d("lol","not ok"); } try { // Building Parameters SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(ForgotPassword.this); String userpref = prefs.getString("username","arnaud"); List<NameValuePair> params = new ArrayList<NameValuePair>(); params.add(new BasicNameValuePair("emailForgot", emails)); Log.d(userpref,"lol"); params.add(new BasicNameValuePair("username", userpref)); Log.d("request!", "starting"); //Posting user data to script JSONObject json = jsonParser.makeHttpRequest( REGISTER_URL, "POST", params); // full json response Log.d("Registering attempt", json.toString()); // json success element success = json.getInt(TAG_SUCCESS); if (success == 1) { Log.d("User Created!", json.toString()); finish(); return json.getString(TAG_MESSAGE); }else{ Log.d("Registering Failure!", json.getString(TAG_MESSAGE)); return json.getString(TAG_MESSAGE); } } catch (JSONException e) { e.printStackTrace(); } return null; } protected void onPostExecute(String file_url) { // dismiss the dialog once product deleted pDialog.dismiss(); if (file_url != null){ Toast.makeText(ForgotPassword.this, file_url, Toast.LENGTH_LONG).show(); } } } } </code></pre> <p>JSONParser.java :</p> <pre><code>import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.UnsupportedEncodingException; import java.util.List; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.client.utils.URLEncodedUtils; import org.apache.http.impl.client.DefaultHttpClient; import org.json.JSONException; import org.json.JSONObject; import android.util.Log; public class JSONParser { static InputStream is = null; static JSONObject jObj = null; static String json = ""; // constructor public JSONParser() { } public JSONObject getJSONFromUrl(final String url) { // Making HTTP request try { // Construct the client and the HTTP request. DefaultHttpClient httpClient = new DefaultHttpClient(); HttpPost httpPost = new HttpPost(url); // Execute the POST request and store the response locally. HttpResponse httpResponse = httpClient.execute(httpPost); // Extract data from the response. HttpEntity httpEntity = httpResponse.getEntity(); // Open an inputStream with the data content. is = httpEntity.getContent(); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } try { // Create a BufferedReader to parse through the inputStream. BufferedReader reader = new BufferedReader(new InputStreamReader( is, "iso-8859-1"), 8); // Declare a string builder to help with the parsing. StringBuilder sb = new StringBuilder(); // Declare a string to store the JSON object data in string form. String line = null; // Build the string until null. while ((line = reader.readLine()) != null) { sb.append(line + "\n"); } // Close the input stream. is.close(); // Convert the string builder data to an actual string. json = sb.toString(); } catch (Exception e) { Log.e("Buffer Error", "Error converting result " + e.toString()); } // Try to 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 the JSON Object. return jObj; } // function get json from url // by making HTTP POST or GET mehtod public JSONObject makeHttpRequest(String url, String method, List<NameValuePair> params) { // Making HTTP request try { // check for request method if(method == "POST"){ // request method is POST // 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(); }else if(method == "GET"){ // request method is GET DefaultHttpClient httpClient = new DefaultHttpClient(); String paramString = URLEncodedUtils.format(params, "utf-8"); url += "?" + paramString; HttpGet httpGet = new HttpGet(url); HttpResponse httpResponse = httpClient.execute(httpGet); 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(); } 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>Thanks for any help.</p> <p>[Edit] Here is my web service :</p> <pre><code><?php try { $to = $_POST['emailForgot']; $subject = "Test mail"; $message = "Hello! This is a simple email message."; $from = "track_my_mate@example.com"; $headers = "From:" . $from; mail($to,$subject,$message,$headers); echo "Mail Sent."; $randome = 'pierre'; $query = "UPDATE 'users' SET 'password' = ? WHERE 'id' = ? "; //Again, we need to update our tokens with the actual data: $query_params = array( ':pass' => $randome, ':user' => $_POST['username'] ); //time to run our query, and create the user try { $stmt = $db->prepare($query); $result = $stmt->execute($query_params); } catch (PDOException $ex) { // For testing, you could use a die and message. //die("Failed to run query: " . $ex->getMessage()); //or just use this use this one: $response["success"] = 0; $response["message"] = "Database Error2. Please Try Again!"; die(json_encode($response)); } } catch (Exception $e) { $response["success"] = 0; $response["message"] = "Please Try Again!"; } //If we have made it this far without dying, we have successfully added //a new user to our database. We could do a few things here, such as //redirect to the login page. Instead we are going to echo out some //json data that will be read by the Android application, which will login //the user (or redirect to a different activity, I'm not sure yet..) $response["success"] = 1; $response["message"] = "Password Successfully Changed!"; try { echo json_encode($response); } catch (Exception $e) { echo ("pierre"); } //for a php webservice you could do a simple redirect and die. //header("Location: login.php"); //die("Redirecting to login.php"); //} ?> </code></pre> <p>[EDIT2] I get : Mail Sent. {"success":0,"message":"Database Error2. Please Try Again !"} The problem is in my query I guess? Arnaud</p>

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