nginx下，可以和缓存时间一起设置

log_format  access  '$remote_addr - $remote_user [$time_local] "$request" '

'$status $body_bytes_sent "$http_referer" '

'"$http_user_agent" $http_x_forwarded_for';

location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$

{

expires      30d;

access_log off;

}

location ~ .*\.(js|css)?$

{

expires      1d;

access_log off;

}

access_log  /www/logs/9enjoy.com.log access;