public override void OnActionExecuted(ActionExecutedContext filterContext) { var stopwatch = (Stopwatch)filterContext.HttpContext.Items[VariableName.StopwatchKey]; stopwatch.Stop(); var treeId = HttpContextHelper.GetContextKey(); var msg = string.Format("[{0}]:耗时[{1}]毫秒 ", treeId , stopwatch.ElapsedMilliseconds); _log.Debug(msg); }