Nginx 设置静态网站内容的缓存时间

map $sent_http_content_type $expires {
    default                    off;
    text/html                  1h;
    text/css                   6h;
    application/javascript     1h;
    ~image/                    7d;
}

server {
	expires $expires;
}

参考:

How to Implement Browser Caching with Nginx’s header Module on CentOS 7

浏览器缓存详解:expires,cache-control,last-modified,etag 详细说明