User.Ident.Name

webconfig  配置   

<authentication mode="Forms">
   <forms name="forums" path="/" loginUrl="Login.aspx" protection="All" timeout="40">
   </forms>
  </authentication>

 

用户登录

/// <summary>
        /// 用户登陆
        /// </summary>
        /// <param name="username">用户名</param>
        /// <param name="roles">权限</param>
        /// <param name="isPersistent">输入true时，Cookies存在的时间是一个月！输入false时，Cookies存在时间是一小时</param>
        public static void Login(string username, string roles, bool isPersistent)
        {
           
            DateTime dt = isPersistent ? DateTime.Now.AddDays(30) : DateTime.Now.AddMinutes(60);
            FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(
                                                                                1, // 票据版本号
                                                                                username, // 票据持有者
                                                                                DateTime.Now, //分配票据的时间
                                                                                dt, // 失效时间
                                                                                isPersistent, // 需要用户的 cookie
                                                                                roles, // 用户数据，这里其实就是用户的角色
                                                                                FormsAuthentication.FormsCookiePath);//cookie有效路径

      
            //使用机器码machine key加密cookie，为了安全传送
            string hash = FormsAuthentication.Encrypt(ticket);
            HttpCookie cookie = new HttpCookie(FormsAuthentication.FormsCookieName, hash); //加密之后的cookie

            //将cookie的失效时间设置为和票据tikets的失效时间一致
            if (ticket.IsPersistent)
            {
                cookie.Expires = ticket.Expiration;
            }

            //添加cookie到页面请求响应中
            HttpContext.Current.Response.Cookies.Add(cookie);

          

        }