Android Mysql erreur de connexion

Question

Hey les gars, je suis en train de faire une page d'enregistrement en utilisant mysqli et php pour backend et java pour le front end. Mon fichier de connexion PHP fonctionne même si j'ai inséré des données quand j'ai essayé d'insérer des données à l'aide de l'application Android. Il ne l'insère pas et ne montre aucune erreur dans le journal.

Je suis Begginer dans android. S'il vous plaît pardonner si vous avez trouvé une erreur.

Voici mon Insérer un fichier

require_once('dbConnect.php'); 


$email = $_POST['email']; 
$password = $_POST['password']; 
$full_name = $_POST['full_name']; 
$registration_num = $_POST['registration_num']; 
$contact_num = $_POST['contact_num']; 



$sql = "INSERT INTO tblregistration (Email, Password,Full_name,Registration_number,Contact_number) VALUES ($email,$password,$full_name,$registration_num,$contact_num)"; 

if(mysqli_query($con,$sql)) { 
    echo "Successful"; 
} 

mysqli_close($con); 

Voici mon inscription Page

b1 = (Button)findViewById(R.id.button); 
    b1.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 

      str_email = "a"; 
      str_password = "a"; 
      str_full_name = "a"; 
      str_registration_num = "a"; 
      str_contact_number = "a"; 
      new InsertData().execute(); 
     } 
    }); 

private class InsertData extends AsyncTask<String, Void, String> { 

    String JSON_STRING; 
    JSONObject jsonObject = null; 

    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
    } 

    @Override 
    protected void onPostExecute(String s) { 
     super.onPostExecute(s); 

      Toast.makeText(getApplicationContext(), s, Toast.LENGTH_SHORT).show(); 

    } 

    @Override 
    protected String doInBackground(String... params) { 

     JSONParser rh = new JSONParser(); 

     HashMap<String, String> data = new HashMap<>(); 

     data.put("email", str_email); 
     data.put("password", str_password); 
     data.put("full_name", str_full_name); 
     data.put("registration_num", str_registration_num); 
     data.put("contact_num", str_contact_number); 

     JSON_STRING = rh.sendPostRequest(AppConfig.URL_REGISTER, data); 

     return JSON_STRING; 
    } 
} 

Voici mon fichier HttpURLConnection

public String sendPostRequest(String requestURL, 
           HashMap<String, String> postDataParams) { 
    //Creating a URL 
    URL url; 

    //StringBuilder object to store the message retrieved from the server 
    StringBuilder sb = new StringBuilder(); 
    try { 
     //Initializing Url 
     url = new URL(requestURL); 

     //Creating an httmlurl connection 
     HttpURLConnection conn = (HttpURLConnection) url.openConnection(); 

     //Configuring connection properties 
     conn.setReadTimeout(15000); 
     conn.setConnectTimeout(15000); 
     conn.setRequestMethod("POST"); 
     conn.setDoInput(true); 
     conn.setDoOutput(true); 

     //Creating an output stream 
     OutputStream os = conn.getOutputStream(); 

     //Writing parameters to the request 
     //We are using a method getPostDataString which is defined below 
     BufferedWriter writer = new BufferedWriter(
       new OutputStreamWriter(os, "UTF-8")); 
     writer.write(getPostDataString(postDataParams)); 

     writer.flush(); 
     writer.close(); 
     os.close(); 
     int responseCode = conn.getResponseCode(); 

     if (responseCode == HttpsURLConnection.HTTP_OK) { 

      BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream())); 
      sb = new StringBuilder(); 
      String response; 
      //Reading server response 
      while ((response = br.readLine()) != null){ 
       sb.append(response); 
      } 
     } 

    } catch (Exception e) { 
     e.printStackTrace(); 
    } 
    return sb.toString(); 
} 


private String getPostDataString(HashMap<String, String> params) throws UnsupportedEncodingException { 
    StringBuilder result = new StringBuilder(); 
    boolean first = true; 
    for (Map.Entry<String, String> entry : params.entrySet()) { 
     if (first) 
      first = false; 
     else 
      result.append("&"); 

     result.append(URLEncoder.encode(entry.getKey(), "UTF-8")); 
     result.append("="); 
     result.append(URLEncoder.encode(entry.getValue(), "UTF-8")); 
    } 

    return result.toString(); 
} 

Answer 1

tout semble bien. Utilisez le bon format JSON ... !!!