这就是我要完成的任务。我有此链接，我要301重定向：
原始网址：
https://www.example.com/**folder1**/page.aspx?fh_location=%2f%2fpackages%2fnl_BE%2fpr_earlybookable%3E%7b0%7d%2fpk_active%3d1%2fpk_siteswitch%3E%7bnvb%7d%2fpk_country%3E%7biso_pt%7d%2fpk_city%3E%7bgeo_9833%7d%2fpr_duration%3E%7b0608%7d%2fpk_hotelonly%3d0&fh_sort_by=pr_defaultprice&**fh_secondid=nbs_city_cli16a_s18**&fh_view=detail&fh_eds=%C3%9F&RoomOccupation1=CLI16A_2a_LO_2_0
条件1 ：我有一个目录列表，例如folder1，folder2，folder3，folder4。我仅在URL包含上面列出的任何文件夹但不为folder5或URL上面没有列出的任何其他文件夹时才重定向。
条件2 ：现在到了棘手的部分；在目标网址中，应从网址"cli16a"中获取ID fh_secondid=nbs_city_cli16a_s18，然后附加到目标网址，如下所示
https://www.example.com/be/_CLI16A**Y**/
条件3 ：现在最棘手的部分。将“ Y”添加到目标URL，该目标URL表示源URL中的文件夹，例如folder1 = Y，folder2 = O，folder3 = B，folder4 = C。
到目前为止，我已经提出了以下建议。
**RewriteMap WE NEED TO GET A MAPPING OF TYPE OF HOTEL** (not sure what to put here)
RewriteCond %{REQUEST_URI} ==(folder1|folder2|folder3|folder4) [NC]
RewriteCond ${conv-lc:%{QUERY_STRING}} (fh_secondid)=[^_]+_[^_]+_([^_]+)_
**RewriteRule ^/nl/_USE RewriteMap Matching text here/** ( not sure what to put here)