我想从URI中删除子域名。
实施例: 我想回归' baseurl.com'来自Uri" subdomain.sub2.baseurl.com"。
有没有办法使用URI类来实现这一点,还是Regex是唯一的解决方案?
谢谢。
答案 0 :(得分:1)
这应该完成它:
var tlds = new List<string>()
{
//the second- and third-level TLDs you expect go here, set to null if working with single-level TLDs only
"co.uk"
};
Uri request = new Uri("http://subdomain.domain.co.uk");
string host = request.Host;
string hostWithoutPrefix = null;
if (tlds != null)
{
foreach (var tld in tlds)
{
Regex regex = new Regex($"(?<=\\.|)\\w+\\.{tld}$");
Match match = regex.Match(host);
if (match.Success)
hostWithoutPrefix = match.Groups[0].Value;
}
}
//second/third levels not provided or not found -- try single-level
if (string.IsNullOrWhiteSpace(hostWithoutPrefix))
{
Regex regex = new Regex("(?<=\\.|)\\w+\\.\\w+$");
Match match = regex.Match(host);
if (match.Success)
hostWithoutPrefix = match.Groups[0].Value;
}