【Yii2.0.7】在advanced高级模板环境中：设置404自定义页面的方法！

'errorHandler' => [
'errorAction' => 'site/error',
],

<?php

use yii\helpers\Html;

$this->title = $name;

$this->context->layout = false; //不使用布局

?>
<div class="site-error">

<h1><?= Html::encode($this->title) ?></h1>

<div class="alert alert-danger">
<?= nl2br(Html::encode($message)) ?>
</div>

</div>