1、建立一个TimingActionFilter过滤器

2、代码如下：

public class TimingActionFilter : ActionFilterAttribute    {        public override void OnActionExecuting(ActionExecutingContext filterContext)        {            GetTimer(filterContext, "action").Start();            base.OnActionExecuting(filterContext);        }        public override void OnActionExecuted(ActionExecutedContext filterContext)        {            GetTimer(filterContext, "action").Stop();            base.OnActionExecuted(filterContext);        }        public override void OnResultExecuted(ResultExecutedContext filterContext)        {            var renderTimer = GetTimer(filterContext, "render");            renderTimer.Stop();            var actionTimer = GetTimer(filterContext, "action");            if (actionTimer.ElapsedMilliseconds >= 100 || renderTimer.ElapsedMilliseconds >= 100)            {                LogHelper.WriteLog("运营监控(" + filterContext.RouteData.Values["controller"] + ")", String.Format(                        "【{0}】-【{1}】,执行:{2}ms,渲染:{3}ms",                        filterContext.RouteData.Values["controller"],                        filterContext.RouteData.Values["action"],                        actionTimer.ElapsedMilliseconds,                        renderTimer.ElapsedMilliseconds                    ));            }            base.OnResultExecuted(filterContext);        }        public override void OnResultExecuting(ResultExecutingContext filterContext)        {            GetTimer(filterContext, "render").Start();            base.OnResultExecuting(filterContext);        }        private Stopwatch GetTimer(ControllerContext context, string name)        {            string key = "__timer__" + name;            if (context.HttpContext.Items.Contains(key))            {                return (Stopwatch)context.HttpContext.Items[key];            }            var result = new Stopwatch();            context.HttpContext.Items[key] = result;            return result;        }    }

其中LogHelper.WriteLog是我的写日志文件通用类，修改成你自己的即可。

3、给controller或action加上特性

4、执行时间或渲染时间大于100ms会被记录下来

我这里有好几次执行时间7、800ms是因为每次重新生成项目，所以第一次会这么慢，这种不管它就是了:)

C#.Net Mvc运营监控，计算方法/接口/action/页面执行时间