框架无非就是mvc，只是调用的父类操作比较繁琐。

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C：TestController.php/actionLogin方法

public function actionLogin()	{		$model=new TestLogin;				if(isset($_POST['ajax']) && $_POST['ajax']==='login-form')		{			echo CActiveForm::validate($model);			Yii::app()->end();		}				if(isset($_POST['TestLogin']))		{			$aa=$model->attributes=$_POST['TestLogin'];			if($model->validate() && $model->login()){				$this->redirect (array('aa/test/index'));			}				//$this->redirect (yii::app()->user->rerurnUrl);		}		//$this->renderPartial('login',array('model'=>$model));		$this->render('login',array('model'=>$model));	}

 M：TestLogin.php模型

     _identity=new UserIdentity($this->username,  $this->password);//这里实例化了一个UserIdentity组件类，并调用了User.php模型类！		if(!$this->_identity->authenticate())		{			$this->addError('password','用户名或密码错误。');		}	}		public function attributeLabels()	{		return array(			'username' => '用户名',			'password' => '密码',			'rememberMe'=>'Remember me next time',		);	}	public function login()	{		if($this->_identity===NULL)		{			$this->_identity=new UserIdentity($this->username,  $this->password);			$this->_identity->authenticate();		}		if($this->_identity->errorCode===UserIdentity::ERROR_NONE)		{			$duration=$this->rememberMe ? 3600*24*30 : 0; // 30 days			Yii::app()->user->login($this->_identity,$duration);			return true;		}		else			return false;	}}?>

 

加载的组件类D:\wamp\www\yiitest\protected\components\UserIdentity.php

class UserIdentity extends CUserIdentity{	public function authenticate()	{		$users = User::model() -> findByAttributes(array('username'=>$this->username));		if(!isset($users->username))			$this->errorCode=self::ERROR_USERNAME_INVALID;		elseif($users->password!==md5($this->password))			$this->errorCode=self::ERROR_PASSWORD_INVALID;		else			$this->errorCode=self::ERROR_NONE;		return !$this->errorCode;	}}

 

加载的模型类D:\wamp\www\yiitest\protected\models\User.php

     128),			array('profile', 'safe'),			// The following rule is used by search().			// Please remove those attributes that should not be searched.			array('id, username, password, email, profile', 'safe', 'on'=>'search'),		);	}	/**	 * @return array relational rules.	 */	public function relations()	{		// NOTE: you may need to adjust the relation name and the related		// class name for the relations automatically generated below.		return array(			'posts' => array(self::HAS_MANY, 'Post', 'author_id'),		);	}	/**	 * @return array customized attribute labels (name=>label)	 */	public function attributeLabels()	{		return array(			'id' => 'ID',			'username' => 'Username',			'password' => 'Password',			'email' => 'Email',			'profile' => 'Profile',		);	}	/**	 * Retrieves a list of models based on the current search/filter conditions.	 * @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.	 */	public function search()	{		// Warning: Please modify the following code to remove attributes that		// should not be searched.		$criteria=new CDbCriteria;		$criteria->compare('id',$this->id);		$criteria->compare('username',$this->username,true);		$criteria->compare('password',$this->password,true);		$criteria->compare('email',$this->email,true);		$criteria->compare('profile',$this->profile,true);		return new CActiveDataProvider($this, array(			'criteria'=>$criteria,		));	}}

 

V：login.php视图

     
      beginWidget('CActiveForm', array(	'id'=>'login-form',	'enableClientValidation'=>true,	'clientOptions'=>array(		'validateOnSubmit'=>true,	),)); ?>    
      errorSummary($model); ?>     
      
        
       label($model,'username'); ?>        
       textField($model,'username') ?>		
       error($model,'username'); ?>    
      
     
      
        
       label($model,'password'); ?>        
       passwordField($model,'password') ?>		
       error($model,'password'); ?>    
      
     
      
        
       checkBox($model,'rememberMe'); ?>        
       label($model,'rememberMe'); ?>		
       error($model,'rememberMe'); ?>    
      
     
      
        
       'btn btn-large')); ?>    
      
 
      endWidget(); ?>