AOP(以MVC中的过滤器为例)

MVC里面的Filter
   public class AOPFilterAttribute : ActionFilterAttribute, IExceptionFilter
    {

        public void OnException(ExceptionContext filterContext)
        {
            throw new System.NotImplementedException();
        }
        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            
            base.OnActionExecuting(filterContext);
        }

        public override void OnActionExecuted(ActionExecutedContext filterContext)
        {
            base.OnActionExecuted(filterContext);
        }
    }

在controller里面使用该特性:

     [AOPFilter]
        public JsonResult GetEditModel(string strType)
        {
            var lstRes = new List<List<DragElementProp>>();
            var lstResPage = new List<PageProperty>();

        //.........todo

            return Json(new { lstDataAttr = lstRes, PageAttr = lstResPage, lstJsConnections = lstJsPlumbLines }, JsonRequestBehavior.AllowGet);
        }
调试可知,在执行GetEditModel(string strType)方法之前,会先执行OnActionExecuting()方法,GetEditModel(string strType)之后,又会执行OnActionExecuted()方法。这在我们MVC里面权限验证、错误页导向、日志记录等常用功能都可以方便解决

转载于:https://www.cnblogs.com/yk123/p/5351766.html

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转载自blog.csdn.net/weixin_34055787/article/details/94611646
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