用于验证URL的REGEX [英] REGEX for validating URL

问题描述

我需要正则表达式来验证以下形式的URL

 http://www.site.com 
 https://www.site.com 
 http://site.com 
 https://site.com 
 http://domain.site.com 
 https ：//domain.site.com 
 http://www.domain.site.com 
 https://www.domain.site.com 
 site.com 
 domain .site.com 
 http://www.site.com/path/to/dir/ 
 https://www.site.com/path/to/dir/ 
 http： //site.com/path/to/dir/ 
 https://site.com/path/to/dir/ 
 http://domain.site.com/path/to/dir/ 
 https://domain.site.com/path/to/dir/ 
 http://www.domain.site.com/path/to/dir/ 
 https：// www.domain.domain.site.com/path/to/dir/ 
 site.com/path/to/dir/ 
 domain.site.com/path/to/dir/ 
 http://www.site.com/path/to/file.html 
 https://www.site.com/path/to/file.html 
 http://site.com/ path / to / file.html 
 https://site.com/path/to/file.html 
 http://domain.site.com/path/to/file.html 
 https://domain.site.com/path/to/file.html 
 http://www.domain.site.com/path/to/file.html 
 https://www.domain.domain.site.com/path/to/file.html 
 site .com / path / to / file.html 
 domain.site.com/path/to/file.html 

和相对路径

 ./ path / to / file.html 
 ./path/to/dir/ 
 ./path/to/dir 
 path / to /file.html 
 path / to / dir / 
 path / to / dir 

（ftp：//不允许）



文件扩展名可能是html，php，gif，jpg，png。



凭借我对正则表达式的了解，这将是我需要一年时间才能完成（如果不是更长时间）。昨天花了我一个多小时来做一个相对URL的正则表达式，并没有达到我想要的方式！我觉得因为不了解REGEX而需要道歉！ :(



请注意，如果URL没有真正指向任何地方，这不是问题，我主要担心的是格式。我只需要格式为在那些（并且只有那些）示例中显示（这是一个详尽的列表）。只有那些是我将要使用和需要的，但如果它验证不同的格式它的确定（只要它只有http / https ...不允许使用ftp，ftps或其他任何内容。

解决方案

试试这个：

（^ [http [秒]：？？？//）（[W] {3} []）（[A-Z0-9] + []）+ COM（（（/ [A-Z0-9] +）*（ / [A-Z0-9] + /））*（[A-Z0-9] +（HTML [。] | PHP | GIF | PNG）））

）？| （^（/）（（（[A-Z0-9] +）/）+ [。] |？（（[A-Z0-9] +）/）+（[A-Z0-9] + [ ]（HTML | PHP | GIF | PNG）？））

）

I need regex that would validate the following forms of URL

http://www.site.com
https://www.site.com
http://site.com
https://site.com
http://domain.site.com
https://domain.site.com
http://www.domain.site.com
https://www.domain.site.com
site.com 
domain.site.com
http://www.site.com/path/to/dir/
https://www.site.com/path/to/dir/
http://site.com/path/to/dir/
https://site.com/path/to/dir/
http://domain.site.com/path/to/dir/
https://domain.site.com/path/to/dir/
http://www.domain.site.com/path/to/dir/
https://www.domain.domain.site.com/path/to/dir/
site.com/path/to/dir/
domain.site.com/path/to/dir/
http://www.site.com/path/to/file.html
https://www.site.com/path/to/file.html
http://site.com/path/to/file.html
https://site.com/path/to/file.html
http://domain.site.com/path/to/file.html
https://domain.site.com/path/to/file.html
http://www.domain.site.com/path/to/file.html
https://www.domain.domain.site.com/path/to/file.html
site.com/path/to/file.html
domain.site.com/path/to/file.html

And relative paths

./path/to/file.html
./path/to/dir/
./path/to/dir
path/to/file.html
path/to/dir/
path/to/dir

(ftp:// NOT permitted)

The file extension may be html, php, gif, jpg, png.

With my knowledge of regex this would take me a year to accomplish (if not longer). Took me more then an hour yesterday to do a regex for relative URL and that didn't turn out the way I want it to! I feel like I need to apologize for not knowing REGEX! :(

Just to note, it's not a problem if the URL doesn't really point anywhere, my main concern is the format. I just need the format to be in those (and only those) as the examples show (it's an exhaustive list). Only those is what I would be using and need, but if it validates a different format its ok (as long as its only http / https... ftp, ftps or anything else is NOT permitted).

解决方案

Try this:

(^(http[s]?://)?([w]{3}[.])?([a-z0-9]+[.])+com(((/[a-z0-9]+)*(/[a-z0-9]+/))*([a-z0-9]+[.](html|php|gif|png))?)

)|(^([.]/)?((([a-z0-9]+)/?)+|(([a-z0-9]+)/)+([a-z0-9]+[.](html|php|gif|png)))?

)

这篇关于用于验证URL的REGEX的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！