索海放由 2016-06-11 12:44:17 6919次浏览 4条评论 5 1 0

模型代码如下:

<?php
namespace app\admin\models;
use yii;
use yii\base\model;
use yii\captcha\Captcha;
class LoginForm extends Model{
    public $verifyCode;
    public $password;
    public $username;
    public function rules(){
        return [
            ['verifyCode','captcha','captchaAction'=>'/admin/login/captcha','message'=>'{attribute}'],
            [['password','username'],'required'],
        ];

    }
}

控制器代码如下:

<?php
namespace app\admin\controllers;
use Yii;
use yii\web\Controller;
use app\admin\models\LoginForm;
use yii\filters\AccessControl;
use yii\filters\VerbFilter;
use yii\captcha\CaptchaAction;
class LoginController extends  Controller{

  public  function actions(){
      return [
          'captcha'=>'yii\captcha\CaptchaAction',
          'maxLength'=>4,
          'minLength'=>3,
          'width'=>10,
          'height'=>10
      ];
    }

    public  function actionIndex(){
        $log = new LoginForm();
        
         return $this->renderPartial("index",['model'=>$log]);
    }
    //授权规则

视图代码如下:

<?php
use yii\helpers\Html;
use yii\bootstrap\Nav;
use yii\bootstrap\NavBar;
use yii\widgets\Breadcrumbs;
use app\assets\AppAsset;
use yii\widgets\ActiveFiel;
use yii\widgets\ActiveForm;
use yii\captcha\Captcha;
use app\components\HelloWidget;
//url 创建
use yii\helpers\Url;
AppAsset::register($this);
?>
<?php $this->beginPage()?>
<!DOCTYPE html>
<html>
<head>
    <title>博客后台管理系统</title>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
    <?=Html::cssFile('@web/css/bootstrap.min.css')?>
    <?=Html::cssFile('@web/css/style.css')?>
    <?=Html::jsFile("@web/js/jquery-1.11.3.min.js");?>
    <?=Html::jsFile("@web/js/bootstrap.min.js");?>
<?php ?>

</head>
    <?php $this->beginBody()?>
<body>
<div class="login-box">
    <div class="login">
        <div class="login-icon">

        </div>
        <h4 class="login-title">博客后台管理系统</h4>
       <?php $form=ActiveForm::begin(['method'=>'post','action'=> \Yii::$app->urlManager->createUrl('/admin/login/index')])?>
            <div class="login-input-box mb10">
              <input type="text" class="form-control" name="username" placeholder="用户名">
            </div>
            <div class="login-input-box mb10">

                <input class="form-control" type="password" name="password" placeholder="密码">
            </div>
            <div class="login-input-box mb30">
                <input class="form-control" type="text" name="code" placeholder="验证码">

                <span class="login-code">
                    <img id="code_img" src="<?= Url::toRoute('/admin/login/captcha')?>" title="点击刷新验证码" onClick="get_code(this);">
                </span>
            </div>
            <input class="inputbtn bg-success btn-block" type="submit" value="登 录">
        <?php ActiveForm::end();?>
    </div>
</div>
<script type="text/javascript">
    //刷新验证码
    function get_code(obj)
    {

        if(!obj)
        {
            obj = document.getElementById('code_img');
        }
        obj.src = obj.src + "&t="+Date.parse(new Date());
    }
</script>
</body>
    <?php $this->beginBody()?>
</html>

<?php $this->endPage()?>

这里整个代码差不多了但是要设置一样更重要的 app/vendor/yiisoft/yii2/captcha/的文件下的CaptchaAction.php这文件中修改getVerifyCode($regenerate = false
) 的方法$regenerate参数为true (getVerifyCode($regenerate = true))然后可

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