MVC FILTER过滤器（二）

    /// <summary>
    /// 授权过滤器
    /// </summary>
    public class TestAuthorizeAttribute:AuthorizeAttribute
    {
        public override void OnAuthorization(AuthorizationContext filterContext)
        {
            filterContext.HttpContext.Response.Write("OnAuthorization<br/>");
            //注释掉父类方法，因为父类里的 OnAuthorization 方法会调用ASP.NET的授权验证机制
            //base.OnAuthorization(filterContext);
        }
    }

    public class TestHandleErrorAttribute:HandleErrorAttribute
    {
        public override void OnException(ExceptionContext filterContext)
        {
            //1.获取一场对象
            Exception ex = filterContext.Exception;
            //2.记录一场日志
            //3.重定向友好页面
            filterContext.Result = new RedirectResult("~/err.html");
            //4.标记一场已经处理完毕
            filterContext.ExceptionHandled = true;

            base.OnException(filterContext);
        }
    }

filters.Add(new TestAuthorizeAttribute());
filters.Add(new TestHandleErrorAttribute());

<customErrors mode="On"></customErrors>