登录在Yii中没有任何作用

尝试这个用户标识类

class UserIdentity extends CUserIdentity {
private $_id;
public $role;
const ERROR_EMAIL_INVALID = 3;
const ERROR_STATUS_NOTACTIV = 4;
const ERROR_STATUS_BAN = 5;
/**
 * Authenticates a user.
 * The example implementation makes sure if the username and password
 * are both 'demo'.
 * In practical applications, this should be changed to authenticate
 * against some persistent user identity storage (e.g. database).
 * @return boolean whether authentication succeeds.
 */
public function authenticate() {
    if (strpos($this->username, "@")) {
        $user = User::model()->findByAttributes(array('email' => $this->username));
    } else {
        $user = User::model()->findByAttributes(array('username' => $this->username));
    }
    if ($user === null)
        if (strpos($this->username, "@")) {
            $this->errorCode = self::ERROR_EMAIL_INVALID;
        } else {
            $this->errorCode = self::ERROR_USERNAME_INVALID;
        } else if (Yii::app()->getModule('admin')->encrypting($this->password) !== $user->password)
        $this->errorCode = self::ERROR_PASSWORD_INVALID;
    else if ($user->status == 0 && Yii::app()->getModule('admin')->loginNotActiv == false)
        $this->errorCode = self::ERROR_STATUS_NOTACTIV;
    else if ($user->status == -1)
        $this->errorCode = self::ERROR_STATUS_BAN;
    else {
        $this->_id = $user->id;
        $this->username = $user->username;
        $this->errorCode = self::ERROR_NONE;
    }
    return !$this->errorCode;
}
/**
 * @return integer the ID of the user record
 */
public function getId() {
    return $this->_id;
}
}

以下是登录操作

public function actionLogin() {
    if (Yii::app()->user->isGuest) {
        $model = new UserLogin;
        // collect user input data
        if (isset($_POST['UserLogin'])) {
            $model->attributes = $_POST['UserLogin'];
            // validate user input and redirect to previous page if valid
            if ($model->validate()) {
            /*=========changed HERE===============*/
            //previous code
            //$this->redirect(array("/profile"));
            $url = 'redirect where you want';
            $this->redirect(array($url));
            }
        }
        // display the login form
        $this->render('/user/login', array('model' => $model));
    } 
    else
    {  
        $user_id = Yii::app()->user->id;
        if($user_id != ''){
            $this->redirect(array("/profile"));
        } else
        $this->redirect(Yii::app()->controller->module->returnUrl);
    }   
}

这是你的型号

class UserLogin extends CFormModel
{
    public $username;
    public $password;
    public $rememberMe;
/**
 * Declares the validation rules.
 * The rules state that username and password are required,
 * and password needs to be authenticated.
 */
    public function rules()
    {
        return array(
        // username and password are required
            array('username, password', 'required'),
        // rememberMe needs to be a boolean
            array('rememberMe', 'boolean'),
            // password needs to be authenticated
            array('password', 'authenticate'),
        );
    }
/**
 * Declares attribute labels.
 */
    public function attributeLabels()
    {
        return array(
            'rememberMe'=>"Remember me next time",
            'username'=>"username or email",
            'password'=>"password",
        );
    }
    /**
     * Authenticates the password.
 * This is the 'authenticate' validator as declared in rules().
 */
    public function authenticate($attribute,$params)
    {
        if(!$this->hasErrors())  // we only want to authenticate when no input errors
        {
            $identity=new UserIdentity($this->username,$this->password);
            $identity->authenticate();
            switch($identity->errorCode)
            {
                case UserIdentity::ERROR_NONE:
                    $duration=$this->rememberMe ? Yii::app()->controller->module->rememberMeTime : 0;
                    Yii::app()->user->login($identity,$duration);
                    break;
                case UserIdentity::ERROR_EMAIL_INVALID:
                    $this->addError("username","Email is incorrect.");
                    break;
                case UserIdentity::ERROR_USERNAME_INVALID:
                    $this->addError("username","Username is incorrect.");
                    break;
                case UserIdentity::ERROR_STATUS_NOTACTIV:
                    $this->addError("status","Your account is not activated.");
                    break;
                case UserIdentity::ERROR_STATUS_BAN:
                    $this->addError("status","Your account is blocked.");
                    break;
                case UserIdentity::ERROR_PASSWORD_INVALID:
                    $this->addError("password","Password is incorrect.");
                    break;
            }
        }
    }
}

通过使用以上所有的动作模型和用户身份，您可以轻松登录yii。