表单 – 无法使用Auth登录与CakePHP 2.0一起使用

我正在尝试使用Cake PHP 2.0获得一个简单的登录表单…只是Auth,现在没有ACl.

我能够看到表单并输入电子邮件和密码,因为它们在数据库中,但我只是返回到表单并显示flash错误消息.这是我的代码：

AppController的：

class AppController extends Controller
 {
     function beforeFilter()
     {
         $this->Auth->userModel = 'Users';
         $this->Auth->fields = array('username' => 'email','password' => 'password'); //have to put both,even if we're just changing one
         $this->Auth->loginAction = array('controller' => 'users','action' => 'login');
         $this->Auth->loginRedirect = array('controller' => 'hotels','action' => 'dashboard');
         $this->Auth->logoutRedirect = array('controller' => 'users','action' => 'login');
     }
 }

login.ctp：

<?php
         echo $this->Form->create('User',array('action' => 'login'));
         echo $this->Form->input('email');
         echo $this->Form->input('password');
         echo $this->Form->end('Login');
     ?>

UsersController：

class UsersController extends AppController
 {
     var $name = 'Users';
     var $Helpers = array('Html','Form');
     var $components = array('Auth','Session');

     function beforeFilter()
     {
         $this->Auth->allow("logout");
         parent::beforeFilter();
     }

     function index() { } //Redirects to login()

     function login()
     {
         if ($this->Auth->login())
         {
             $this->redirect($this->Auth->redirect());
         } else
         {
             $this->Session->setFlash(__('Invalid username or password,try again'));
         }
     }

     function logout()
     {
         $this->redirect($this->Auth->logout());
     }
 }
 ?>

我很感激任何帮助.谢谢！

public $components = array(
    'Auth'=> array(
        'authenticate' => array(
            'Form' => array(
                'fields' => array('username' => 'email')
            )
        )
    )
);