ActionFilterAttribute,里面有4个虚方法

        public virtual void OnActionExecuted(ActionExecutedContext filterContext);

        public virtual void OnActionExecuting(ActionExecutingContext filterContext);

        public virtual void OnResultExecuted(ResultExecutedContext filterContext);

        public virtual void OnResultExecuting(ResultExecutingContext filterContext);

先在Model创建一个类名为MyActionFilterAttribute,继承自ActionFilterAttribute

在里面定义Name并重载4个虚方法 加入输出提示

 public string Name { get; set; }

        public override void OnActionExecuting(ActionExecutingContext filterContext)

        {

            base.OnActionExecuting(filterContext);

            HttpContext.Current.Response.Write("<br />OnActionExecuting " + this.Name);

        }

        public override void OnResultExecuting(ResultExecutingContext filterContext)

        {

            base.OnResultExecuting(filterContext);

            HttpContext.Current.Response.Write("<br />OnResultExecuting " + this.Name);

        }

        public override void OnActionExecuted(ActionExecutedContext filterContext)

        {

            base.OnActionExecuted(filterContext);

            HttpContext.Current.Response.Write("<br />OnActionExecuting " + this.Name);

        }

        public override void OnResultExecuted(ResultExecutedContext filterContext)

        {

            base.OnResultExecuted(filterContext);

            HttpContext.Current.Response.Write("<br />OnResultExecuted " + this.Name);

        }

 

新建一个控制器名为FilterController 在其里面写入

[MyActionFilterAttribute(Name="Index Action")]

        public ActionResult Index()

        {

            Response.Write("<p>Action执行了</>");

            return Content("<br />试图被渲染了");

        }

进入该Filter控制器的Index  Action方法

 

显示结果:

OnActionExecuting Index Action

Action执行了

OnActionExecuting Index Action

OnResultExecuting Index Action

试图被渲染了

OnResultExecuted Index Action

说明OnActionExecuting在Action前执行

OnActionExecuting在Action后执行

OnResultExecuting在View之前执行

OnResultExecuted在View之后执行