活动目录角色- .net核心

using System;
using System.DirectoryServices;

public class AdUser
{
    public string UserName { get; set; }
    public string Email { get; set; }
}

public class AdService
{
    private readonly string _domain = "yourdomain.com";
    private readonly string _username = "yourusername@yourdomain.com";
    private readonly string _password = "yourpassword";

    public AdUser GetUserByUsername(string username)
    {
        using (DirectoryEntry entry = new DirectoryEntry("LDAP://yourdomain.com", _username, _password))
        {
            using (DirectorySearcher searcher = new DirectorySearcher(entry))
            {
                searcher.Filter = $"(&(objectClass=user)(sAMAccountName={username}))";
                SearchResult result = searcher.FindOne();

                if (result != null)
                {
                    AdUser user = new AdUser
                    {
                        UserName = result.Properties["sAMAccountName"][0].ToString(),
                        Email = result.Properties["mail"][0].ToString()
                    };
                    return user;
                }
            }
        }
        return null;
    }
}