SDammann.WebApi.Versioning : asp.net版本控制

Question

config.Routes.MapHttpRoute(
    name: "Route1",
    routeTemplate: "api/v{version}/Participant/{action}/{id}",
    defaults: new { id = RouteParameter.Optional }
);

config.Routes.MapHttpRoute(
    name: "Route2",
    routeTemplate: "api/v{version}/{controller}/{action}/{id}",
    defaults: new { id = RouteParameter.Optional },
    constraints: null,
    handler : new TokenValidationHandler() 
);

我的控制器是ParticipantController。

如果添加两条路由，则会从SDamman dll (对象空引用错误)引发异常。我需要两条路线，只为“MessageHandler”添加一个Route2。

有人能帮我吗？

我在global.asax.cs文件中添加了下面的行

GlobalConfiguration.Configuration.Services.Replace(typeof(IHttpControllerSelector),
                    new RouteVersionedControllerSelector(GlobalConfiguration.Configuration));

自从我使用.Net框架版本4以来，我使用了包id="SDammann.WebApi.Versioning“version="2.0.0.3”targetFramework="net40“

异常细节

“System.NullReferenceException”类型的异常发生在SDammann.WebApi.Versioning.dll中，但未在用户代码中处理 附加信息:对象引用未设置为对象的实例。 (应SDammann.WebApi.Versioning.VersionedControllerSelector.GetControllerNameFromRequest(HttpRequestMessage请求) z:\Developing\ VisualStudio\Projects\SDammann.WebApi.Versioning\src\SDammann.WebApi.Versioning\VersionedControllerSelector.cs:line 187 (应SDammann.WebApi.Versioning.RouteVersionedControllerSelector.GetControllerIdentificationFromRequest(HttpRequestMessage请求)在z：\Developing\VisualStudio\Projects\SDammann.WebApi.Versioning\src\SDammann.WebApi.Versioning\RouteVersionedControllerSelector.cs:line 34 (应SDammann.WebApi.Versioning.VersionedControllerSelector.SelectController(HttpRequestMessage请求)在z：\Developing\Visual Studio\Projects\SDammann.WebApi.Versioning\src\SDammann.WebApi.Versioning\VersionedControllerSelector.cs:line 112应System.Web.Http.Dispatcher.HttpControllerDispatcher.SendAsyncInternal(HttpRequestMessage请求，应System.Web.Http.Dispatcher.HttpControllerDispatcher.SendAsync(HttpRequestMessage请求CancellationToken CancellationToken (CancellationToken cancellationToken)

Answer 1

我发现了问题所在。我错过了在Route1中添加默认控制器。

工作代码：

config.Routes.MapHttpRoute(
    name: "Route1",
    routeTemplate: "api/v{version}/Participant/{action}/{id}",
    defaults: new { controller: "Participant", id = RouteParameter.Optional }
);