CakePHP2.6でログインができません

<?php

App::uses('AppController', 'Controller');

class UsersController extends AppController {
    public $name = 'Users';
    public $components = Array('Session','Auth');
    
    public function login() {
        if ($this->request->is('post')) {
            if ($this->Auth->login()) {//Does not work well
                echo "Hello, world";
                $this->redirect($this->Auth->redirectUrl());
            }
            else {
                echo "Error";
                $this->Session->setFlash('Wrong email address or password', 'default', array(), 'auth');
            }
        }
    }
    public function logout() {
        $this->Auth->logout();
        //turn $this->redirect(array('action'=>'index', 'controller'=>'Members'));
    }
    
    public function add() {
        if(!empty($this->data)) {
            if ($this->data) {
                $this->User->create();
                $this->User->save($this->data);
                $this->redirect(array('action' => 'login'));
            }
        }
    }
    
    public function beforeFilter() {        
        $this->Auth->allow('add','logout');
    }
}

//Model/User.php
App::uses('AppModel', 'Model');
App::uses('BlowfishPasswordHasher', 'Controller/Component/Auth');

class User extends AppModel {

    public function beforeSave($options = array()) {
    
        if (isset($this->data[$this->alias]['password'])) {
            $passwordHasher = new BlowfishPasswordHasher();
            $this->data[$this->alias]['password'] = $passwordHasher->hash(
                    $this->data[$this->alias]['password']
            );
        }
        return true;    
    }

}

// Controller/AppController.php
App::uses('Controller', 'Controller');

Configure::write('debug', 1);

class AppController extends Controller {
    
    public $components = array(
            'Auth' => array(
                    'loginAction' => array(
                            'controller' => 'users',
                            'action' => 'login'
                    ),
                    'loginRedirect' => array(
                            'controller' => 'members',
                            'action' => 'index'
                    ),
                    'logoutRedirect' => array(
                            'controller' => 'mains',
                            'action' => 'index',
                            'home'
                    ),
                    
                    'authenticate' => array(
                            'Form' => array(
                                    'passwordHasher' =>  'Blowfish',
                                    'hashType' => 'sha1'
                            )
                    )
                    
            )
    );
    
    public function beforeFilter() {
        $this->Auth->allow('index');
    }
}

// View/Users/add.ctp
<div class="users form">
<?php echo $this->Form->create('User'); ?>
    <fieldset>
        <legend><?php echo __('Add User'); ?></legend>
        <?php
        echo $this->Form->input('name');
        echo $this->Form->input('mail_address');
        echo $this->Form->input('password');
    ?>
    </fieldset>
<?php echo $this->Form->end(__('Registration')); ?>
</div>

// View/Users/login.ctp
<div class="users form">
<?php echo $this->Form->create('User'); ?>
    <fieldset>
        <legend>
            <?php echo __('Please enter your mailaddress and password'); ?>
        </legend>
        <?php echo $this->Form->input('mail_address');
        echo $this->Form->input('password');
    ?>
    </fieldset>
<?php echo $this->Form->end(__('Login')); ?>
</div>