public class AuthFilterAttribute : ActionFilterAttribute

    {

        /// <summary>

        /// Action执行前处理

        /// </summary>

        /// <param name="actionContext"></param>

        public override void OnActionExecuting(HttpActionContext actionContext)

        {

            HttpContextBase context = (HttpContextBase)actionContext.Request.Properties["MS_HttpContext"];//获取传统context

            HttpRequestBase request = context.Request;//定义传统request对象

            string name = request.Params["name"];

            base.OnActionExecuting(actionContext);

        }

    }