nginx图片缓存处理

server {
# ...此处省略N行配置
# example: /thumb/[md5].png_300x187.png
location ~ "/thumb/([0-9a-f]{32}.(png|jpg|gif))_(d+|-)x(d+|-).(png|jpg|gif)$" {
access_log off;
set $image $1;
set $width $3;
set $height $4;
# 建议使用try_files代替if
try_files /thumb/$image =404;
image_filter resize $width $height;
image_filter_buffer 10M;
# 只会在浏览器端缓存，若要在服务器端缓存，可采用proxy的方案(此处没有给出，可自行google)
expires 7d;
}
}

http {
,,,,,
proxy_cache_path /var/cache/nginx/cache levels=1:2 keys_zone=imgcache:100m inactive=1d max_size=10g;
server {
........www.111com.net
location ~* ^.+.(js|ico|gif|jpg|jpeg|png|html|htm)$ {
log_not_found off;
access_log off;
expires 7d;
proxy_pass https://www.111cn.net;
proxy_cache imgcache;
proxy_cache_valid 200 302 1d;
proxy_cache_valid 404 10m;
proxy_cache_valid any 1h;
proxy_cache_use_stale error timeout invalid_header updating http_500 http_502 http_503 http_504;
}
}
}