WebAPI的路由规则

public static class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            // Web API 路由
            config.MapHttpAttributeRoutes();

            //1.默认路由
            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{id}",
                defaults: new { id = RouteParameter.Optional }
            );

            //2.自定义路由一：匹配到action
            config.Routes.MapHttpRoute(
                name: "ActionApi",
                routeTemplate: "actionapi/{controller}/{action}/{id}",
                defaults: new { id = RouteParameter.Optional }
            );

            //3.自定义路由二
            config.Routes.MapHttpRoute(
                name: "TestApi",
                routeTemplate: "testapi/{controller}/{ordertype}/{id}",
                defaults: new { ordertype="aa", id = RouteParameter.Optional }
            );
        }
    }

        [HttpGet]
        public IHttpActionResult GetById(int id)
        {
            return Ok("Success" + id );
        }

        [HttpPost]
        public HttpResponseMessage PostData(int id) 
        {
            return Request.CreateResponse();
        }

        [HttpPost]//http://xxx/api/savedata
        public HttpResponseMessage SavaData(ORDER order) 
        {
            return Request.CreateResponse();
        }

        [Route("Order/SaveData")]
        [HttpPost]
        public HttpResponseMessage SavaData(ORDER order)
        {
            return Request.CreateResponse();
        }

        [Route("ordertype/{id}/order")]
        [HttpGet]
        public IHttpActionResult GetById(int id)
        {
            return Ok("Success" + id );
        }