使用目录重定向301

Question

I create some rules:

RewriteEngine On
RewriteBase /

RewriteRule ^dir1/dir2/(.*).html$ /dir2/$1 [R=301,L]

RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f

RewriteRule ^(.*)$ index.php?url=$1 [QSA,L]

My old links was look that: http://example.org/app_name/dir1/dir2/slug.html, but new links will be looks like: http://example.org/app_name/dir2/slug

My redirection works almost good but new links redirect to http://example.org/dir2/slug (without app_name/)

How to add app_name/ dir to redirection dynamicaly?

Soluttion below it's not good:

RewriteRule ^dir1/dir2/(.*).html$ /app_name/dir2/$1 [R=301,L]

Answer 1

Just add an extra capture before dir1/dir2:

RewriteEngine On
RewriteBase /

RewriteRule ^(.*)/dir1/dir2/(.*).html$ /$1/dir2/$2 [R=301,L]