Einloggen in Android mit Web-Service PHP

Question

Ich möchte Login mit JSON machen. Dies ist mein Login-Web-Service und meine Login-Aktivität in Android Studio. Wenn ich versuche mich anzumelden, antwortet es immer 1. Es bedeutet immer Erfolg. Obwohl der Benutzername und das Passwort falsch sind.

Können Sie mir sagen, warum ist das passiert?

Für die Datenbank verwende ich mysql

login.php

<?php 
$configs = include('config.php'); 

    //echo $configs['user']; 

    $dbhost = $configs['host']; 
    $dbuser = $configs['user']; 
    $dbpass = $configs['pass']; 
    $dbname = $configs['dbname']; 

mysql_connect($dbhost,$dbuser,$dbpass); 
    mysql_select_db($dbname); 

    // array for JSON response 
    $response = array(); 

    // check for required fields 
    if (isset($_POST['username']) && isset($_POST['password'])) { 
     $username = $_POST['username']; 
     $password = $_POST['password']; 
     // include db connect class 
     mysql_connect($dbhost); 
     mysql_select_db($dbname); 
     // mysql inserting a new row 
     $kueri = " SELECT * FROM tbl_customer WHERE username = '$username' AND password = '$password' "; 
     $query = ''; 
     $kueri.=$query; 
     $result = mysql_query($kueri); 

     //$result = mysql_fetch_array($query); 

     // check if row inserted or not 
     if (!empty($result)) { 
     // successfully inserted into database 
     $response["sukses"] = 1; 
     $response["pesan"] = "login sukses"; 
     // echoing JSON response 
     echo json_encode($response); 
     } else { 
     // failed to insert row 
     $response["sukses"] = 0; 
     $response["pesan"] = "Oops! An error occurred."; 
     // echoing JSON response 
     echo json_encode($response); 
     } 
    } else { 
     // required field is missing 
     $response["sukses"] = 0; 
     $response["pesan"] = "Required field(s) is missing"; 
     // echoing JSON response 
     echo json_encode($response); 
    } 
?> 

LoginActivity.java

public class LoginActivity extends AppCompatActivity { 

private static final String URL_TEST = "http://lomapod.azurewebsites.net/login.php"; 
private static final String TAG_PESAN = "sukses"; 


ArrayList<HashMap<String, String>> tempList; 

JSONParser jParser = new JSONParser(); 

private Toolbar toolbar; 
private EditText inputName, inputPassword; 
private TextInputLayout inputLayoutName, inputLayoutPassword; 
private Button btnLogin; 
private TextView txtSignUp,txtUser,txtPass; 
SessionManagement session; 

ProgressDialog pDialog; 

class AttemptLogin extends AsyncTask<String, String, String> { 

    int success; 
    String xuser, xpassword; 

    public AttemptLogin(String xuser, String xpassword) { 
     this.xuser=xuser; 
     this.xpassword=xpassword; 
     pDialog = new ProgressDialog(LoginActivity.this); 
    } 

    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
     pDialog.setMessage("Loading . . ."); 
     pDialog.setIndeterminate(false); 
     pDialog.setCancelable(false); 
     pDialog.show(); 
    } 

    protected String doInBackground(String... args) { 

     List<NameValuePair> params = new ArrayList<NameValuePair>(); 
     params.add(new BasicNameValuePair("username", xuser)); 
     params.add(new BasicNameValuePair("password", xpassword)); 

     JSONObject json = jParser.makeHttpRequest(URL_TEST, "POST", params); 
     Log.d("Response: ", json.toString()); 
     try { 

      success = json.getInt(TAG_PESAN); 

      if (success == 1) { 
       Log.d("Successfully Login!", json.toString()); 
       session.createLoginSession(xuser,xpassword); 
       Intent i = new Intent(LoginActivity.this,MainActivity.class); 
       startActivity(i); 
       return json.getString(TAG_PESAN); 
      } 
      else 
      { 
       return json.getString(TAG_PESAN); 
      } 


     } catch (JSONException e) { 
      e.printStackTrace(); 
     } 
     return null; 
    } 

    protected void onPostExecute(String file_url) { 

     pDialog.dismiss(); 
     if (success == 1) { 
      Toast.makeText(LoginActivity.this, "Success Login ", Toast.LENGTH_SHORT).show(); 
     } 
     else 
     { 
      Toast.makeText(LoginActivity.this, "Username & Password is wrong", Toast.LENGTH_SHORT).show(); 
     } 

    } 
} 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_login); 
    session =new SessionManagement(LoginActivity.this); 


    inputLayoutName = (TextInputLayout) findViewById(R.id.input_layout_name); 
    inputLayoutPassword = (TextInputLayout) findViewById(R.id.input_layout_password); 
    inputName = (EditText) findViewById(R.id.input_name); 
    inputPassword = (EditText) findViewById(R.id.input_password); 
    btnLogin = (Button) findViewById(R.id.btnLogin); 
    txtSignUp =(TextView) findViewById(R.id.txtSignUp); 

    inputName.addTextChangedListener(new MyTextWatcher(inputName)); 
    inputPassword.addTextChangedListener(new MyTextWatcher(inputPassword)); 

    // Inflate the layout for this fragment 

    ClikLogin(); 
    ClickSignUp(); 

} 

public void ClikLogin() 
{ 
    btnLogin.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      submitForm(); 
     } 
    }); 
} 

public void ClickSignUp() 
{ 
    txtSignUp.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      Intent i =new Intent(LoginActivity.this, SignUpActivity.class); 
      startActivity(i); 
     } 
    }); 
} 


private void submitForm() { 
    if (validateName() && validatePassword()) { 
     new AttemptLogin(inputName.getText().toString(),inputPassword.getText().toString()).execute(); 
    } 

    Toast.makeText(LoginActivity.this, "Thank You!", Toast.LENGTH_SHORT).show(); 
} 

private boolean validateName() { 
    String user=inputName.getText().toString(); 
    if (user==null||user.equals("")) { 
     inputLayoutName.setError(getString(R.string.err_msg_name)); 
     requestFocus(inputName); 
     return false; 
    } else { 
     inputLayoutName.setErrorEnabled(false); 
    } 

    return true; 
} 


private boolean validatePassword() { 
    String pass=inputPassword.getText().toString(); 
    if (pass==null||pass.equals("")) { 
     inputLayoutPassword.setError(getString(R.string.err_msg_pass)); 
     requestFocus(inputPassword); 
     return false; 
    } else { 
     inputLayoutPassword.setErrorEnabled(false); 
    } 

    return true; 
} 


private void requestFocus(View view) { 
    if (view.requestFocus()) { 
     this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE); 
    } 
} 

private class MyTextWatcher implements TextWatcher { 

    private View view; 

    private MyTextWatcher(View view) { 
     this.view = view; 
    } 

    public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) { 
    } 

    public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) { 
    } 

    public void afterTextChanged(Editable editable) { 
     switch (view.getId()) { 
      case R.id.input_name: 
       validateName(); 
       break; 
      case R.id.input_password: 
       validatePassword(); 
       break; 
     } 
    } 
} 
} 

Answer 1

Das erste, was mit mysql_* Funktionen stoppen. Fangen Sie an, mit mysqli zu arbeiten.

sucht Statt Ergebnis Prüfung für die Anzahl der Zeilen im Ergebnis wie unter

$sql="SELECT * FROM tbl_customer WHERE username = '$username' AND password = '$password' "; 
if ($result=mysqli_query($con,$sql)) 
{ 
    $rowcount=mysqli_num_rows($result); 
    if ($rowcount>0) { 
     // successfully inserted into database 
     $response["sukses"] = 1; 
     $response["pesan"] = "login sukses"; 
     // echoing JSON response 
     echo json_encode($response); 
     } 

Answer 2

con $ = mysqli_connect ("localhost", "my_user", "my_password", "my_db");