纠结的问题   最后只是选择了默认的配置

上代码:

model :

public function rules()

{

return [

['username','filter','filter' => 'trim'],

['username','required'],'unique','targetClass' => 'commonmodelsAdminuser','message' => '用户名已经存在.'],'string','min' => 2,'max' => 255],

['email','email'],'message' => '邮件地址已经存在.'],

['password','min' => 6],

['password_repeat','compare','compareAttribute'=>'password','message'=>'两次输入的密码不一致！'],

['nickname','max'=>128],

['profile','string'],

['verifyCode','captcha','captchaAction' => '/backend/Adminuser/captcha'],

];

}

控制器:

public function actions()

{

return [

'error' => [

'class' => 'yiiwebErrorAction',

],

'captcha' => [

'class' => 'yiicaptchaCaptchaAction',

'fixedVerifyCode' => YII_ENV_TEST ? 'testme' : null,

];

}

view:

<?= $form->field($model,'verifyCode')->widget(Captcha::ClassName(),[

'captchaAction' => 'Adminuser/captcha',

'template' => '<div class="row"><div class="col-lg-3">{image}</div><div class="col-lg-6">{input}</div></div>',

]) ?>

解决:

怎么调整都不行  之后跟踪到报错的位置:   /vendor/yiisoft/yii2/captcha/CaptchaValidator.php:81

发现了这样的一行代码  

$ca = Yii::$app->createController($this->captchaAction);

public $captchaAction = 'site/captcha';所以呢 怀疑是model里面的配置的问题 现在去掉了 model,view 里面的'captchaAction' => '/backend/Adminuser/captcha' 控制器也去掉了 关于captcha的配置 然后不在报错

这时候验证码不显示   怀疑是权限的问题,添加了红色的部分  ok 

public function behaviors()

{

return [

'access' => [

'class' => AccessControl::className(),

'rules' => [

[

'actions' => ['login','error','captcha'],

'allow' => true,

[

'actions' => ['logout','index'],

'roles' => ['@'],

'verbs' => [

'class' => VerbFilter::className(),

'actions' => [

'logout' => ['post'],

];

}