var ticket = FormsAuthentication.Decrypt(
                    HttpContext.Current.Request.Cookies[FormsAuthentication.FormsCookieName].Value);

if (ticket.Expired)
{
    throw new InvalidOperationException("Ticket expired.");
}

IPrincipal user =  (System.Security.Principal.IPrincipal) new RolePrincipal(new FormsIdentity(ticket));

我们可以使用下面的代码在ASP中获取当前登录的用户。Net MVC:

var user= System.Web.HttpContext.Current.User.Identity.GetUserName();

也

var userName = System.Security.Principal.WindowsIdentity.GetCurrent().Name; //will give 'Domain//UserName'

Environment.UserName - Will Display format : 'Username'

var ticket = FormsAuthentication.Decrypt(
                    HttpContext.Current.Request.Cookies[FormsAuthentication.FormsCookieName].Value);

if (ticket.Expired)
{
    throw new InvalidOperationException("Ticket expired.");
}

IPrincipal user =  (System.Security.Principal.IPrincipal) new RolePrincipal(new FormsIdentity(ticket));

HttpContext.Current.User试试。

公共共享财产当前()作为 System.Web.HttpContext System.Web.HttpContext的成员 简介: 获取或设置当前HTTP请求的System.Web.HttpContext对象。 返回值: 当前的System.Web.HttpContext HTTP请求

你可以使用以下代码:

Request.LogonUserIdentity.Name;

我使用:

Membership.GetUser().UserName

我不确定这是否适用于ASP。NET MVC，但它值得一试:)