Is that possible?

当然,您可以编写自定义授权属性：

public class MyAuthorizeAttribute : AuthorizeAttribute
{
    protected override void HandleUnauthorizedRequest(AuthorizationContext filterContext)
    {
        filterContext.Result = new ViewResult
        {
            ViewName = "~/Views/Shared/401.cshtml"
        };
    }
}

然后使用它：

[MyAuthorize(Roles = "Admin")]
public ActionResult Edit(int id)

备注：如果用户未获得授权,您可能希望显示401或403页面而不是404未找到文件.