public override void OnActionExecuting(ActionExecutingContext context)        {            string test = context.Controller.ToString();            if (ValuesController._flag == 0)            {                context.Result = new RedirectResult("/api/values/Test");                ValuesController._flag = 1;            }        }

学习博客：http://www.cnblogs.com/niklai/p/5676632.html

http://www.cnblogs.com/wangrudong003/p/5750583.html