很多使用OpenLiteSpeed环境的小伙伴，基本都会安装LiteSpeed Cache插件，其实很多静态文件的缓存设置，直接用该插件设置浏览器缓存是无效的。特别对于缓存时间等。这里搬主题就分享一下OpenLiteSpeed设置浏览器缓存，加快WordPress站点访问速度图文教程。特别是在 WordPress 站点优化中，浏览器缓存是提升访问速度的关键技术之一。使用LiteSpeed环境是可以直接用LiteSpeed Cache插件设置浏览器缓存时间的，但是使用OpenLiteSpeed环境则不行，所以要通过配置 OpenLiteSpeed 的缓存策略，可以有效减少服务器负载并大幅缩短页面加载时间。本教程将手把手教您如何通过 OpenLiteSpeed 的 WebAdmin 控制台，为静态资源设置缓存标头（Cache-Control、Expires）及自定义响应头，全面提升网站性能。比如你查看你的错误日志，在每次重启后，日志一般都会留下2025-02-11 14:25:43.513706 [INFO] [3636512] Invalid rewrite directive: ExpiresActive on
2025-02-11 14:25:43.513709 [INFO] [3636512] Invalid rewrite directive: ExpiresByType application/pdf A31557600
2025-02-11 14:25:43.513712 [INFO] [3636512] Invalid rewrite directive: ExpiresByType image/x-icon A31557600
2025-02-11 14:25:43.513715 [INFO] [3636512] Invalid rewrite directive: ExpiresByType image/vnd.microsoft.icon A31557600
2025-02-11 14:25:43.513722 [INFO] [3636512] Invalid rewrite directive: ExpiresByType image/svg+xml A31557600
2025-02-11 14:25:43.513725 [INFO] [3636512] Invalid rewrite directive: ExpiresByType image/jpg A31557600
2025-02-11 14:25:43.513728 [INFO] [3636512] Invalid rewrite directive: ExpiresByType image/jpeg A31557600
2025-02-11 14:25:43.513731 [INFO] [3636512] Invalid rewrite directive: ExpiresByType image/png A31557600
2025-02-11 14:25:43.513733 [INFO] [3636512] Invalid rewrite directive: ExpiresByType image/gif A31557600
2025-02-11 14:25:43.513736 [INFO] [3636512] Invalid rewrite directive: ExpiresByType image/webp A31557600
2025-02-11 14:25:43.513739 [INFO] [3636512] Invalid rewrite directive: ExpiresByType video/ogg A31557600
2025-02-11 14:25:43.513741 [INFO] [3636512] Invalid rewrite directive: ExpiresByType audio/ogg A31557600
2025-02-11 14:25:43.513744 [INFO] [3636512] Invalid rewrite directive: ExpiresByType video/mp4 A31557600
2025-02-11 14:25:43.513747 [INFO] [3636512] Invalid rewrite directive: ExpiresByType video/webm A31557600
2025-02-11 14:25:43.513749 [INFO] [3636512] Invalid rewrite directive: ExpiresByType text/css A31557600
2025-02-11 14:25:43.513752 [INFO] [3636512] Invalid rewrite directive: ExpiresByType text/javascript A31557600
2025-02-11 14:25:43.513755 [INFO] [3636512] Invalid rewrite directive: ExpiresByType application/javascript A31557600
2025-02-11 14:25:43.513758 [INFO] [3636512] Invalid rewrite directive: ExpiresByType application/x-javascript A31557600
2025-02-11 14:25:43.513760 [INFO] [3636512] Invalid rewrite directive: ExpiresByType application/x-font-ttf A31557600
2025-02-11 14:25:43.513763 [INFO] [3636512] Invalid rewrite directive: ExpiresByType application/x-font-woff A31557600
2025-02-11 14:25:43.513766 [INFO] [3636512] Invalid rewrite directive: ExpiresByType application/font-woff A31557600
2025-02-11 14:25:43.513768 [INFO] [3636512] Invalid rewrite directive: ExpiresByType application/font-woff2 A31557600
2025-02-11 14:25:43.513771 [INFO] [3636512] Invalid rewrite directive: ExpiresByType application/vnd.ms-fontobject A31557600
2025-02-11 14:25:43.513774 [INFO] [3636512] Invalid rewrite directive: ExpiresByType font/ttf A31557600
2025-02-11 14:25:43.513777 [INFO] [3636512] Invalid rewrite directive: ExpiresByType font/otf A31557600
2025-02-11 14:25:43.513779 [INFO] [3636512] Invalid rewrite directive: ExpiresByType font/woff A31557600
2025-02-11 14:25:43.513782 [INFO] [3636512] Invalid rewrite directive: ExpiresByType font/woff2 A31557600其实就是不支持OpenLiteSpeed。因此在某些情况下，您需要设置自定义响应标头，例如Cache-Control标头或Expire标头。下面是一些示例，向您展示如何完成此操作。浏览器缓存登录 WebAdmin 控制台，导航到虚拟主机 > 资源集，然后创建一个新的上下文。在新创建的上下文中，将类型设置为Static。换成中文，参考如下配置为：对于我们的浏览器缓存，我们希望定位 JavaScript 和 CSS 文件，因此我们可以使用正则表达式来匹配URI设置中这些类型的所有文件，如下所示：exp:^.*(css|js)$
如果愿意，您可以添加更多静态文件扩展名，例如：exp:^.*(css|gif|ico|jpeg|jpg|js|png|webp|woff|woff2|fon|fot|ttf)$
设置以下内容：位置：（ $DOC_ROOT/$0我们需要这个，$0因为URI使用正则表达式）可访问:Yes启用过期：Yes将Expires by Type设置为以下内容（15552000秒等于 180 天）：application/javascript=A15552000, text/css=A15552000
如果愿意，您可以向Expires by Type添加更多类型 ，例如：text/css=A15552000, image/gif=A15552000, image/x-icon=A15552000, image/jpg=A15552000, image/jpeg=A15552000, application/x-javascript=A15552000, text/javascript=A15552000, application/javascript=A15552000, image/png=A15552000, image/webp=A15552000, font/ttf=A15552000, font/woff=A15552000, font/woff2=A15552000, application/x-font-ttf=A15552000, application/x-font-woff=A15552000, application/font-woff=A15552000, application/font-woff2=A15552000
将Header Operations设置为以下内容：unset Cache-control
set Cache-control public, max-age=15552000
该unset cache-control行会删除先前的缓存控制标头，然后在下一行设置新的缓存控制标头。设置后的效果如下：X-Powered-By如果需要添加更多标头，则语法和用法与 Apache 的支持操作的mod_headers指令类似。以下是添加标题的示例X-Powered-By：设置以下内容：网址： exp:^.*(css|js)$位置：（ $DOC_ROOT/$0我们需要这个，$0因为URI使用正则表达式）可访问:Yes标头操作：set X-Powered-By OpenLiteSpeed。
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