[英]How to enable caching for all requests in yii2?
I got from google the next notice: 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)
For resolve this problem, i found the next behavior: 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
// }
],
];
}
After this on main document (not for all requests, only for / ) appears three additional headers: 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:
Althought set time()+3600 , Last-Modified equals Data header 尽管设置了时间()+3600 ,但最后修改等于数据头
How to set for all requests not for only / So as I understand google wants that I set Expire header? 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?
Expire goes into .htaccess in web folder: 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>
Also, in yii2 you could set the version (query string): 另外,在yii2中,您可以设置版本(查询字符串):
'components' => [
'assetManager' => [
'appendTimestamp' => true,
],
],
Info : http://www.yiiframework.com/doc-2.0/guide-structure-assets.html#cache-busting 信息 : http : //www.yiiframework.com/doc-2.0/guide-structure-assets.html#cache-busting
Versions or last-modified? 版本或最后修改?
Here's a in deep explanation : File Caching: Query string vs Last-Modified? 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?
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