Yii-模块－ 后台登录实现方法

1. 设置控制器，登录页面方法，退出方法 admin/user/login, logout..

   /** *登录页面 */public function actionAdminLogin(){$model = new User;// if it is ajax validation request/*if(isset($_POST['ajax']) && $_POST['ajax']==='login-form'){echo CActiveForm::validate($model);Yii::app()->end();}*/// collect user input dataif(isset($_POST['User'])){$model->attributes=$_POST['User'];// validate user input and redirect to the previous page if validif($model->validate() && $model->Adminlogin())$this->redirect(Yii::app()->user->returnUrl);}// display the login form//$this->render('login',array('model'=>$model));$this->render('login',array('model'=>$model,));}/** * 退出 */public function actionAdminLogout(){Yii::app()->user->logout();$this->redirect(Yii::app()->homeUrl."?r=admin");}

   
   
2. 设置模块，设置密码验证，登录函数，

   /***验证密码*parm $passord 用户输入的密码*return 匹配成为返回为TRUE，否则为FALSE*/public function validatapassword($password){return $this->encrytp($password)===$this->password;}/*** 加密*/private function encrytp($password,$pre="yiiapp"){return md5($pre.$password);}public function beforeSave(){if(parent::beforeSave()){if($this->isNewRecord){$this->password = $this->encrytp($this->password);}return true;}else{return false;}}public $username;public $password;public $rememberMe;public $verifyCode; private $_identity;/****/登录方法public function Adminlogin(){if($this->_identity===null){$this->_identity=new AdminIdentity($this->username,$this->password);$this->_identity->authenticate();}if($this->_identity->errorCode===AdminIdentity::ERROR_NONE){$duration=$this->rememberMe ? 3600*24*30 : 0; // 30 daysYii::app()->user->login($this->_identity,$duration);//echo "fas";return true;}elsereturn false;}

   
   
3. 配置密码验证模块。复制protected/components/UserIdentily.php->AdminIdentily.php

   class AdminIdentity extends CUserIdentity{private $_id;public function authenticate(){$username = strToLower($this->username);$user = User::model()->find('LOWER(username)=?',array($username));if($user===null){$this->errorCode=self::ERROR_USERNAME_INVALID;}elseif(!$user->validatapassword($this->password)){$this->errorCode=self::ERROR_PASSWORD_INVALID;}else{$this->_id = $user->id;$this->username = $user->username;$this->errorCode=self::ERROR_NONE;}return !$this->errorCode;}public function getid(){return $this->_id;} public function getPersistentStates(){return 'admin';}}

   
   
4. 修改布局文件链接

   array('label'=>'登录', 'url'=>array('/admin/user/adminlogin'), 'visible'=>!Yii::app()->user->getstate('manage')==='admin'),array('label'=>'退出 ('.Yii::app()->user->name.')', 'url'=>array('/admin/user/adminlogout'), 'visible'=>Yii::app()->user->getstate('manage')==='admin')

   
   
5. module文件配置登录页面，登录跳转页面

   class AdminIdentity extends CUserIdentity{private $_id;public function authenticate(){$username = strToLower($this->username);$user = User::model()->find('LOWER(username)=?',array($username));if($user===null){$this->errorCode=self::ERROR_USERNAME_INVALID;}elseif(!$user->validatapassword($this->password)){$this->errorCode=self::ERROR_PASSWORD_INVALID;}else{$this->_id = $user->id;$this->username = $user->username;$this->errorCode=self::ERROR_NONE;}return !$this->errorCode;}public function getid(){return $this->_id;} public function getPersistentStates(){return array('manage'=>'admin');}}