asp.net – web-api&swagger文档

我写了一个asp web-api,我已经使用 this class为api添加了版本.

我的路线看起来像这样：

config.Routes.MapHttpRoute(
    name: "DefaultApi",routeTemplate: "{namespace}/{controller}/{id}",defaults: new { id = RouteParameter.Optional }
);

config.Services.Replace(typeof(IHttpControllerSelector),new NamespaceHttpControllerSelector(config));

所以我可以访问https：// localhost：44301 / v1 / test

我现在正在尝试添加Swagger来生成一些api文档(实际上我使用的是Swashbuckle Nuget包)

当我浏览/ swagger页面加载但是所有控制器都出错：

Unable to read api 'TestController' from path https://localhost:44301/swagger/api-docs/TestController (server returned undefined)

如果我浏览到https：// localhost：44301 / swagger / api-docs / TestController,它会出现一个NullReferenceException,其堆栈跟踪如下：

at Swashbuckle.Swagger.OperationGenerator.CreateParameter(ApiParameterDescription apiParamDesc,String apiPath)
   at Swashbuckle.Swagger.OperationGenerator.<>c__displayClass2.<ApiDescriptionToOperation>b__1(ApiParameterDescription paramDesc)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Swashbuckle.Swagger.OperationGenerator.ApiDescriptionToOperation(ApiDescription apiDescription)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.OrderedEnumerable`1.<GetEnumerator>d__0.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Swashbuckle.Swagger.ApiExplorerAdapter.CreateApi(IGrouping`2 apiDescriptionGroup,OperationGenerator operationGenerator)
   at Swashbuckle.Swagger.ApiExplorerAdapter.<>c__displayClassb.<GetDeclaration>b__7(IGrouping`2 apiDescGrp)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.OrderedEnumerable`1.<GetEnumerator>d__0.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Swashbuckle.Swagger.ApiExplorerAdapter.GetDeclaration(String basePath,String version,String resourceName)
   at Swashbuckle.Application.CachingSwaggerProvider.<>c__displayClass4.<GetDeclaration>b__3(String k)
   at System.Collections.Concurrent.ConcurrentDictionary`2.GetorAdd(TKey key,Func`2 valueFactory)
   at Swashbuckle.Application.CachingSwaggerProvider.GetDeclaration(String basePath,String resourceName)
   at Swashbuckle.Application.SwaggerSpecHandler.SendAsync(HttpRequestMessage request,CancellationToken cancellationToken)
   at System.Net.Http.HttpMessageInvoker.SendAsync(HttpRequestMessage request,CancellationToken cancellationToken)
   at System.Web.Http.dispatcher.HttpRoutingdispatcher.SendAsync(HttpRequestMessage request,CancellationToken cancellationToken)
   at System.Net.Http.DelegatingHandler.SendAsync(HttpRequestMessage request,CancellationToken cancellationToken)
   at System.Web.Http.HttpServer.<>n__FabricatedMethod9(HttpRequestMessage,CancellationToken )
   at System.Web.Http.HttpServer.<SendAsync>d__0.MoveNext()

如果我改变路线：

config.Routes.MapHttpRoute(
    name: "DefaultApi",routeTemplate: "{controller}/{id}",defaults: new { id = RouteParameter.Optional }
)

Swagger页面然后工作,但实际的api不行！

所以问题是,如何让Swagger使用版本化的api？

解决方法

最后我使用了Sdammann.WebApi.Versioning nuget包和以下路由：

VersionedControllerSelector.VersionPrefix = "v";

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

我的控制器位于名为v1或v2等的命名空间中.