1）创建BaseController控制器继承Controller（后台的一切操作要继承BaseController):
在BaseController里面添加：
public function checkLogin() {if (Yii::app()->authority->isLogin() == Yii::app()->authority->getStatus('NOTLOGIN')) {$url = $this->createUrl('user/login');if (Yii::app()->request->isPostRequest && Yii::app()->request->isAjaxRequest) {echo json_encode(array('code' => -101, 'message' => '用户未登录。', 'callback' => 'window.location="' . $url . '";'));} else if (Yii::app()->request->isAjaxRequest) {echo '<script language="javascript">window.location="' . $url . '";</script>';} else {$this->redirect($url);}exit;}return true;}
在components目录下创建Authority.php文件：
<?php/*** 权限检查组件*/
class Authority extends CComponent {private $NOTLOGIN = -1;private $FAILED = -2;private $PASS = 1;public function init() {}/*** 检查是否登陆* @return boolean */function isLogin() {return isset(Yii::app()->session['user']) ? $this->PASS : $this->NOTLOGIN;}/*** 获取状态值* @param string $name* @return int */public function getStatus($name){return $this->$name;}
}
)
