我在一个新的 2.5 joomla 站点工作，旧站点是 1.5，旧站点的 url 不是 SEF。我需要将旧的 1.5 no SEF url 重定向到新的 SEF url，我这样做：
redirect 301 /index.php?option=com_k2&v... http://www.newsite.com/es
（注意 url 中的语言，它似乎对问题很重要，我使用的是 joomla 集成语言系统）
但它不起作用，joomla 以某种方式剥离了 index.php 并且重定向不起作用。我尝试从重定向中删除 index.php，但它也不起作用。我是 htaccess 和重定向的菜鸟，我被困在这...谢谢。
最好的办法是执行一个完整的重定向（没有查询参数，即 Redirect 301 / http://newsite.com/）并使用 SH404sef 扩展名处理新站点上的查询词。http://extensions.joomla.org/extensions/site-management/sef/10134
Well, like this seems to be a hard problem, i think i just found a solution doing extensives testing and googling...
I found a rewrite and put it before the joomla rewrites:
RewriteCond %{QUERY_STRING} ^(.*)lang=es$
RewriteRule ^(index\.php)?$ /es? [R=301,L]
This replace the normal redirect 301.
Its hard for me to explain because i dont have too much knowledge about redirections and htaccess, the important think is that it seems to work for my problem, i hope other people just found this helpful.
If someone can explain the sintaxis of this code it will be grate.
Thank you very much.