c# - 如何将部分 url 与 c# 匹配

Question

我有一个动态列表，如下行

https://www.example.com/ */post/

https://www.example2.com/videos/ *

https://www.example3.com/photo/

我如何匹配 C# 以下网址（返回 true）

https://www.example.com/user123/post/

http://www.example.com/user123/post/abc

https://www.example2.com/videos/1234

https://www.example2.com/videos/1234/5678

http://www.example2.com/videos/1234/5678

http://example2.com/videos/1234/video.asp?id=1

也许我可以使用 UriTemplate 但网址有很多部分。他们没有静态格式。

标签： c#regex

Answer 1

试试这个方法，它使用正则表达式：

static void Main(string[] args)
{
  var urls = new string[] { "https://www.example.com/*/post/", "https://www.example2.com/videos/*" };
  // here regex patterns are created: special characters are escaped and 
  // star, which means here "anything" is replaced by .+ which means "one or more of any charaters"
  var regexes = urls.Select(url => new Regex(url.Replace("/", @"\/").Replace(".", @"\.").Replace("*", ".+")));

  var toCheck = new string[]
  {
  "https://www.example.com/user123/post/",
  "http://www.example.com/user123/post/abc",
  "https://www.example2.com/videos/1234",
  "https://www.example2.com/videos/1234/5678",
  "http://www.example2.com/videos/1234/5678",
  "http://example2.com/videos/1234/video.asp?id=1"
  };

  var valid = toCheck.Where(url => regexes.Where(r => r.Match(url).Success).Any()).ToArray();
}