在我看来，我有：

<?php echo $this->Session->flash();  ?>

在我的UsersController中我有：

public function login() {

        $this->Session->delete('Flash.auth');
        $this->Session->delete('Message.flash');
        $this->Session->delete('auth');
        $this->Session->delete('Message.auth');

        if ($this->Auth->login()) {
        $this->redirect($this->Auth->redirect(array('controller' => 'users', 'action' => 'index')));
        } else {
        $this->Session->setFlash('Invalid username or password, please try again', null, null);
            }
        }

问题是即使成功登录后我的flash消息仍然存在 .

PR（$这 - >会话级>读（））;产生：

Array
(
    [Config] => Array
        (
            [userAgent] => adcb84540c454620867cea3249a69ca1
            [time] => 1544388026
            [countdown] => 10
        )

    [Message] => Array
        (
            [flash] => Array
                (
                    [message] => Invalid username or password, please try again
                    [element] => default
                    [params] => Array
                        (
                        )
                )
        )
)
cakephp-2.0