Lighttpd+exprise

 最近FW Session极度上升，快逼近256k的上线，所以想加入一些用户端的缓存来减少请求。

注意对于一些不常变化的静态目录加入exprise.

一 lighttpd

1 根据目录来缓存
expire.url                 = (
"/xx/" => "access 168 hours",
"/xxxx/attach/" => "access 168 hours",
"/xxx/" => "access 2 months

分别设置目录缓存为一周，和2个月


2 根据文件来缓存
另外还可以根据图片的格式来缓存

$HTTP["url"] =~ "\.(jpg|jpeg|gif|png|css|js)" {
         expire.url = ( "" => "access 24 hours" )
    }

注意:我在lighttpd-1.4.19 上用文件形式未成功，升级到lighttpd/1.4.25就可以了。

附：expire参数

The and directives can also be defined in a more readable syntax of the form:

ExpiresDefault " [plus] { }*"
ExpiresByType type/encoding " [plus] { }*"

where is one of:

• access
• now (equivalent to 'access')
• modification

The 'plus' keyword is optional. should be an integer value [acceptable to atoi()], and is one of:

• years
• months
• weeks
• days
• hours
• minutes
• seconds

For example, any of the following directives can be used to make documents expire 1 month after being accessed, by default:

ExpiresDefault "access plus 1 month"
ExpiresDefault "access plus 4 weeks"
ExpiresDefault "access plus 30 days"

The expiry time can be fine-tuned by adding several ' ' clauses:

ExpiresByType text/html "access plus 1 month 15 days 2 hours"
ExpiresByType image/gif "modification plus 5 hours 3 minutes"