最近需要用到验证码,搜索了很多关于Yii2验证码的切换的介绍,下面我来记录一下,有需要了解Yii2下验证码的切换的朋友可参考。希望此文章对各位有所帮助。
模型代码如下:
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<?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' ],
];
}
}
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控制器代码如下:
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<?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
}
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视图代码如下:
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<?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 $this ->endPage()?>
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这里整个代码差不多了但是要设置一样更重要的 app/vendor/yiisoft/yii2/captcha/的文件下的CaptchaAction.php这文件中修改getVerifyCode($regenerate = false) 的方法$regenerate参数为true (getVerifyCode($regenerate = true))
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://www.yiichina.com/tutorial/801