授权过滤器：
???/// <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); ???????} ???}异常过滤器：
???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); ???????} ???}当然，可以在FilterConfig.cs中进行全局过滤
filters.Add(new TestAuthorizeAttribute());filters.Add(new TestHandleErrorAttribute());
注：如果自定义错误页面没有自动跳转的话
需要去WebConfig配置文件中的<system.web>节点下添加
<customErrors mode="On"></customErrors>
MVC FILTER过滤器（二）
原文地址：https://www.cnblogs.com/dzw159/p/10358559.html