ASP.NET MVC中错误处理方式

/// <summary>
        /// 标记了HandleError，并指明错误处理页为AboutError.aspx
        /// </summary>
        /// <returns></returns>
        [HandleError(View = "AboutError")]
        public ActionResult About()
        {
            return View();
        }

protected override void OnException(ExceptionContext filterContext)
        {
            // 标记异常已处理
            filterContext.ExceptionHandled = true;
            // 跳转到错误页
            filterContext.Result = new RedirectResult(Url.Action("Error", "Shared"));
        }