web api呼叫路由匹配

Question

我有api呼叫路由定义为此

routes.MapHttpRoute(
                name: "VisitGetByIdApi",
                routeTemplate: "api/v1/visits/{id}",
                defaults: new { Controller = "Visits", Action = "GetById" },
                constraints: new { id = @"\d*", httpMethod = new HttpMethodConstraint(new[] { "GET", "POST" }) }
                );

我试图通过ajax从我的.js文件调用web api，但是我一直收到404错误，调用的方法是什么。

self.GetVisitById = function () {
        debugger;
        $.ajax({
            type: "GET",
            url: "/api/v1/visits",
            data: {
                id: self.Id()
            },
            traditional: true,
            success: function (data) {
                debugger;
                return data;
            },
            error: function (data) {
                debugger;
            }
        });
    }

消息：“找不到与请求URI”http://localhost:1059/api/v1/visits?id=5217“匹配的HTTP资源。” MessageDetail：“找不到与名为'v1'的控制器匹配的类型。”