问题
I am running a WP Blog with qtranslate. It allows me to create posts in multiple languages.
1 . Example URL without qtranslate:
www.mysite.com/post1
2 . Example URL with localized content:
www.mysite.com/en/post1 (english - my default and fallback)
www.mysite.com/de/post1
Unfortunately search engines etc. still remember my old links (1.) and these are still access-able. So "www.mysite.com/post1" now shows my english content without a redirect. But what it should do is to 301 users to "www.mysite.com/en/post1".
So now I would need a rule that basically checks if there is /en/post1 or a /de/post1 in the URL and otherwise redirect to the fallback /en/post1 URL. There is one exception because "/shop" is a real subdirectory and does not need to be preceeded by language information.
-- UPDATE --
I did it!!! That was actually fun but took me quite a while to figure out.
RewriteRule ^$ en [R=301,L]
RewriteRule ^([a-z]{2})/{1}$ $1 [R=301,L]
RewriteRule ^([a-zA-Z0-9\-\_]{3,})(/|$)$ en/$1 [R=301,L]
There are probably better ways to do this but it does the trick. Thanks everyone for the initial help!
回答1:
Have you tried using a universal RewriteRule, and using RewriteConds to eliminate the cases that you don't want it to rewrite?
It would go something like:
RewriteCond %{REQUEST_URI} !^/shop(/|$)
RewriteCond %{REQUEST_URI} !^/(en|de)(/|$)
RewriteRule ^(.*)$ /en/$1 [R=301]
But as per Camilo's suggestion, you could change that middle line to
RewriteCond %{REQUEST_URI} !^/[a-z]{2}(/|$)
as long as you can ensure that your post permalinks won't be less than three characters (I'm not familiar enough with WordPress to be sure if that's possible).
回答2:
What about just using meta canonical?
Like this:
<link rel="canonical" href="http://www.example.com/product.php?item=swedish-fish" />
More info: http://googlewebmastercentral.blogspot.com/2009/02/specify-your-canonical.html
回答3:
I did it!!! That was actually fun but took me quite a while to figure out.
RewriteRule ^$ en [R=301,L]
RewriteRule ^([a-z]{2})/{1}$ $1 [R=301,L]
RewriteRule ^([a-zA-Z0-9\-\_]{3,})(/|$)$ en/$1 [R=301,L]
There are probably better ways to do this but it does the trick
-- UPDATE this includes support for longer URLs ---
RewriteRule ^([a-zA-Z0-9\-\_]{3,}(/|$).*)$ en/$1 [R=301,L]
RewriteRule ^(.+[^/])/$ http://%{HTTP_HOST}/$1 [R=301,L]
来源：https://stackoverflow.com/questions/9220869/rewrite-rule-to-enforce-default-lang-code-in-url