match home page url with regex

问题

I want to match only the homepage of website www.mysite.com and any variations of it like mysite.com/?src=advert

I have come up with ^https?:\/\/[^\/]+(\/(\?.*|index\.com(\?)?)?)?$

It matches www.mysite.com but I need it to match anything after /? as well www.mysite.com/? (and anything after question mark)

I don't want to match mysite.com/product/..

回答1:

It seems you are looking for

^https?:\/\/(?:[^\/]+\.)?mysite\.com(?:\/(?:\?.*)?)?$

See the regex demo

Details

• ^ - start of the string
• https?:\/\/ - a https:// or http:// substring
• (?:[^\/]+\.)? - an optional sequence of 1 or more chars (as many as possible) other than / followed with a .
• mysite\.com - a literal mysite.com substring
• (?:\/(?:\?.*)?)? - an optional sequence of:
  • \/ - a /
  • (?:\?.*)? - an optional sequence of ? and then any 0+ chars other than line break chars, as many as possible
• $ - end of string

来源：https://stackoverflow.com/questions/46320439/match-home-page-url-with-regex