using (PrincipalContext pc = new PrincipalContext(ContextType.Domain, _domain))

    {

        // 工号一定要全

        using (var userPrincipal = UserPrincipal.FindByIdentity(pc, IdentityType.SamAccountName,loginModel.JobNumber))

        {

            if (userPrincipal == null)

            {

                return "账号不正确,请重新输入";

            }

            if (!pc.ValidateCredentials(loginModel.JobNumber, loginModel.Password))

            {

                return @"密码输入错误,请重新输入";

            }

            //GivenName是用户名称,Surname是工号(无前缀),Name是用户名称+工号(无前缀)

            PersonDetailInfo personDetailInfo = new PersonDetailInfo()

            {

                SearchName = userPrincipal.Name,

                UserName = userPrincipal.GivenName,

                JobNumber = userPrincipal.SamAccountName,

                EmailAddress = userPrincipal.EmailAddress

            };

            return personDetailInfo;

        }

    }