如何从字符串中获取域名

Question

I need a help of you. I want to split domain name from a string in my C# application. Any idea about that.

eg : string strURL="http://stackoverflow.com/questions";

and I need output like DomainName : stackoverflow.com

Answer 1

This should work.

new Uri("http://stackoverflow.com/questions").DnsSafeHost

Answer 2

You can do it using Regex....

            string domainName = string.Empty;
            string strURL="http://stackoverflow.com/questions";
            Regex rg = new Regex("://(?<host>([a-z\\d][-a-z\\d]*[a-z\\d]\\.)*[a-z][-a-z\\d]+[a-z])");
            if (rg.IsMatch(strURL))
            {
                domainName = rg.Match(strURL).Result("${host}");
            }

domainName gives the domain name.....