基类:
FilterAttribute
public abstract class ActionFilterAttribute : FilterAttribute, IActionFilter, IResultFilter
{
// Methods
protected ActionFilterAttribute();
public virtual void OnActionExecuted(ActionExecutedContext filterContext);
public virtual void OnActionExecuting(ActionExecutingContext filterContext);
public virtual void OnResultExecuted(ResultExecutedContext filterContext);
public virtual void OnResultExecuting(ResultExecutingContext filterContext);
}
有四个可以覆写的方法,分别可以控制Action执行前Action执行后,Result执行前Result执行后