c# - 如何从 UNC 中提取服务器名称

Question

谁能告诉我如何从 UNC 中提取服务器名称？

前任。

//服务器名/目录/目录

编辑：我很抱歉，但看起来我需要澄清一个错误：路径实际上更像：

//服务器名/d$/目录

我知道这可能会改变一些事情

Answer 1

怎么样Uri：

Uri uri = new Uri(@"\\servername\d$\directory");
string[] segs = uri.Segments;
string s = "http://" + uri.Host + "/" + 
    string.Join("/", segs, 2, segs.Length - 2) + "/";

Answer 2

Just another option, for the sake of showing different options:

(?<=^//)[^/]++

The server name will be in \0 or $0 or simply the result of the function, depending on how you call it and what your language offers.

Explanation in regex comment mode:

(?x)      # flag to enable regex comments
(?<=      # begin positive lookbehind
^         # start of line
//        # literal forwardslashes (may need escaping as \/\/ in some languages)
)         # end positive lookbehind
[^/]++    # match any non-/ and keep matching possessively until a / or end of string found.
          # not sure .NET supports the possessive quantifier (++) - a greedy (+) is good enough here.

Answer 3

这应该可以解决问题。

^//([^/]+).*

服务器名称在第一个捕获组中

Answer 4

要匹配的正则表达式servername：

^//(\w+)

Answer 5

丑陋但它只是工作：

var host = uncPath.Split(new [] {'\\'}, StringSplitOptions.RemoveEmptyEntries).FirstOrDefault();