LAMP-靜態元素過期時間
當用戶訪問網站的時候一些圖片會自動緩存在電腦瀏覽器緩存中,當下一次訪問的時候就不必要再次加載了。當超時或更新時,會重新請求加載。
1、配置虛擬主機
[[email protected] ~]# vi /usr/local/apache2.4/conf/extra/httpd-vhosts.conf <VirtualHost *:80> DocumentRoot "/data/www/abc.com" ServerName abc.com ServerAlias www.abc.com ErrorLog "logs/abc.com-error_log" <IfModule mod_expires.c> ExpiresActive on ##打開功能開關 ExpiresByType image/gif "access plus 1 days" ##定義失效時間 ExpiresByType image/jpeg "access plus 24 hours" ExpiresByType image/png "access plus 24 hours" ExpiresByType text/css "now plus 2 hour" ExpiresByType application/x-javascript "now plus 2 hours" ExpiresByType application/javascript "now plus 2 hours" ExpiresByType application/x-shockwave-flash "now plus 2 hours" ExpiresDefault "now plus 0 min" </IfModule> SetEnvIf Request_URI ".*\.gif$" img SetEnvIf Request_URI ".*\.jpg$" img SetEnvIf Request_URI ".*\.png$" img SetEnvIf Request_URI ".*\.bmp$" img SetEnvIf Request_URI ".*\.swf$" img SetEnvIf Request_URI ".*\.js$" img SetEnvIf Request_URI ".*\.css$" img CustomLog "|/usr/local/apache2.4/bin/rotatelogs -l logs/abc.com-access_%Y%m%d.log 86400" combined env=!img </VirtualHost>
2、檢查重新加載
[[email protected] ~]# /usr/local/apache2.4/bin/apachectl -t Syntax OK [[email protected] ~]# /usr/local/apache2.4/bin/apachectl -M |grep -i expire [[email protected] ~]# vi /usr/local/apache2.4/conf/httpd.conf LoadModule expires_module modules/mod_expires.so ##取消註釋啟用 [[email protected]
3、驗證效果
[[email protected] abc.com]# curl -x127.0.0.1:80 abc.com/123.gif -I HTTP/1.1 200 OK Date: Fri, 21 Jul 2017 11:19:21 GMT Server: Apache/2.4.27 (Unix) PHP/7.1.6 Last-Modified: Fri, 21 Jul 2017 11:19:21 GMT ETag: W/"8c5-555b2e6023fc0" Accept-Ranges: bytes Content-Length: 2245 Cache-Control: max-age=86400 ##最大老化時間86400秒,也就是1天 Expires: Sat, 22 Jul 2017 11:19:21 GMT ##過期時間 Content-Type: image/gif
本文出自 “Gorilla Grodd” 博客,請務必保留此出處http://juispan.blog.51cto.com/943137/1952835
LAMP-靜態元素過期時間