如何为yii2中的所有请求启用缓存？

Question

我从Google得到了下一条通知：

 example.com/assets/a3f4f38d/jquery.min.js (expiration not specified) example.com/css/main.css (expiration not specified) 
example.com/css/swiper.min.css (expiration not specified) 

example.com/img/clouds/cloud-portfolio_mob.png (не указан срок действия) example.com/img/clouds/min0.png (expiration not specified) 

example.com/img/clouds/min1.png (expiration not specified) example.com/img/clouds/min2.png (expiration not specified) 

example.com/img/heroes/A.jpg (expiration not specified) example.com/img/heroes/B.jpg (expiration not specified) 

example.com/img/heroes/C.jpg (expiration not specified) example.com/img/icons/Dot.gif (expiration not specified) example.com/img/icons/menuSm_min.png (expiration not specified) 

example.com/img/icons/red-heart-border_min.png (не указан срок действия) example.com/img/icons/red-heart_min.png (не указан срок действия) example.com/img/loader/Loader-Advanced.gif (не указан срок действия) 

example.com/img/logo/t.svg (expiration not specified) example.com/img/main_background/bg_mob.jpg (expiration not specified)

为了解决此问题，我发现了下一个行为：

public function behaviors()
  {
    return [
      [
        'class' => 'yii\filters\HttpCache',
        'only' => ['index'],
        'lastModified' => function ($action, $params) {
//          $q = new \yii\db\Query();
          return time() + 3600;
//          return $q->from('users')->max('updated_at');
        },
        'sessionCacheLimiter' => 'public',

//            'etagSeed' => function ($action, $params) {
//                return // generate ETag seed here
//            }
      ],
    ];
  }

在主文档上之后（并非针对所有请求，仅针对/ ），出现了三个附加标题：

Cache-Control:public, max-age=3600  Last-Modified:Fri, 13 May 2016 09:03:45 GMT  Pragma:

尽管设置了时间（）+3600 ，但最后修改等于数据头

如何为所有请求设置不只/因此，据我了解，谷歌希望我设置Expire标头？

Answer 1

到期进入Web文件夹中的.htaccess：

<IfModule mod_expires.c>

ExpiresActive On 
ExpiresDefault "access plus 1 month"
ExpiresByType image/gif "access plus 1 month"
ExpiresByType image/png "access plus 1 month"
ExpiresByType image/jpg "access plus 1 month"
ExpiresByType image/jpeg "access plus 1 month"
ExpiresByType application/javascript "access plus 1 year"
</IfModule>

另外，在yii2中，您可以设置版本（查询字符串）：

'components' => [
        'assetManager' => [
            'appendTimestamp' => true,
        ],
    ],

信息 ： http : //www.yiiframework.com/doc-2.0/guide-structure-assets.html#cache-busting

版本或最后修改？

这是一个深入的解释 ： 文件缓存：查询字符串与最后修改日期？