apache 目录与域名301跳转实现方法

RewriteCond %{REQUEST_URI} ^/down/mb/
RewriteRule ^/down/mb/(.*) http://mb.111com.net/$1 [R=permanent,L]

RewriteCond %{HTTP_HOST} ^www.111com.net [NC]
RewriteRule ^(.*)$ http://www.111com.net/$1 [L,R=301]