Cakephp 3.1，为什么$this->；认证->；识别（）；总是返回false？

UsersController.php的登录操作=>

public function login()
{

    if ($this->request->is('post')) {
        $user = $this->Auth->identify();        

        if ($user) {
            $this->Auth->setUser($user);
            return $this->redirect($this->Auth->redirectUrl());
        } else {
            $this->Flash->error(__('Username or password is incorrect'), [
                'key' => 'auth'
            ]);
        }
    }
}

public function add()
    {
        $this->set('groups', $this->Users->Groups->find('list'));       

        $user = $this->Users->newEntity();
        if ($this->request->is('post')) {
            $article = $this->Users->patchEntity($user, $this->request->data);
            if ($this->Users->save($article)) {
                $this->Flash->success(__('New user has been saved.'));
                return $this->redirect(['controller' => 'posts', 'action' => 'index']);
            }
            $this->Flash->error(__('Unable to add new user.'));
        }
    }

public function initialize()
{
    parent::initialize();

    $this->loadComponent('RequestHandler');
    $this->loadComponent('Flash');
    $this->loadComponent('Auth', [          
        'loginAction' => [
        'controller' => 'Users',
        'action' => 'login'            
        ],
        'loginRedirect' => [
        'controller' => 'Posts',
        'action' => 'index'
        ],
        'logoutRedirect' => [
        'controller' => 'Posts',
        'action' => 'index'
        ]           
    ]);
    $this->Auth->allow();   
}

我已经创建了一个用户。 添加UsersController.php的操作=>

public function login()
{

    if ($this->request->is('post')) {
        $user = $this->Auth->identify();        

        if ($user) {
            $this->Auth->setUser($user);
            return $this->redirect($this->Auth->redirectUrl());
        } else {
            $this->Flash->error(__('Username or password is incorrect'), [
                'key' => 'auth'
            ]);
        }
    }
}

public function add()
    {
        $this->set('groups', $this->Users->Groups->find('list'));       

        $user = $this->Users->newEntity();
        if ($this->request->is('post')) {
            $article = $this->Users->patchEntity($user, $this->request->data);
            if ($this->Users->save($article)) {
                $this->Flash->success(__('New user has been saved.'));
                return $this->redirect(['controller' => 'posts', 'action' => 'index']);
            }
            $this->Flash->error(__('Unable to add new user.'));
        }
    }

public function initialize()
{
    parent::initialize();

    $this->loadComponent('RequestHandler');
    $this->loadComponent('Flash');
    $this->loadComponent('Auth', [          
        'loginAction' => [
        'controller' => 'Users',
        'action' => 'login'            
        ],
        'loginRedirect' => [
        'controller' => 'Posts',
        'action' => 'index'
        ],
        'logoutRedirect' => [
        'controller' => 'Posts',
        'action' => 'index'
        ]           
    ]);
    $this->Auth->allow();   
}

用户实体=>

<?php

namespace App\Model\Entity;

use Cake\Auth\DefaultPasswordHasher;
use Cake\ORM\Entity;

class User extends Entity
{
    protected function _setPassword($password)
    {
        if (strlen($password) > 0) {
          return (new DefaultPasswordHasher)->hash($password);
        }
    }
}

login.ctp=>

<h2>Login</h2>
<?php
    echo $this->Form->create('User', array('url' => array('controller' => 'users', 'action' =>'login')));
    echo $this->Form->input('User.username',array('style'=>'width:50%'));
    echo $this->Form->input('User.password',array('style'=>'width:50%'));
    echo $this->Form->submit('Login');
    echo $this->Form->end();
?>

以以下格式保存在数据库用户表中的密码：

$2y$10$ZP9WngYH74tdlOfBKpix2ORfvs/NN2.WIstWpg7qgGpoSwDhaMU8q

为什么我不能登录？为什么$this->Auth->identify（）；总是返回false

我们将非常感谢您的帮助

---

提前感谢。

您确实需要在身份验证配置中添加要检查的字段，如：

'Form' => [
  'fields' => [
    'username' => 'username',
    'password' => 'password'
  ]
]

此外，您的表单是错误的，它需要像下面这样读取，从控制器传递一个实体

$this->Form->create($userEntity);

不要在字段前面加上（错误的）模型，只需使用：

$this->Form->input('username');
$this->Form->input('password');

---

请包括您的AuthComponent配置。是的，请确保您的AppController AuthComponent设置正确。您确实错过了AppController中的AuthComponent配置，并且至少错过了login.ctp。@Davidell，我已经编辑了提供auth component配置的原始问题。@hmic，我已经编辑了提供login.ctp的原始问题。您可以发布完整的身份验证配置吗？$user的价值是多少？它将在哪里定义？这是本书中完整的示例：

$user

是从控制器设置为视图的实体。对于将是

$user=$this->Users->newEntity（）

的

add（）

操作，并且将是对

edit（）

操作的查询。