AttributeRouting WebAPI现在产生错误

Question

我刚刚在我的WebAPI项目上更新(从v3.x)到最新版本的AttributeRouting,它刚刚开始产生我以前从未见过的错误.

现在无论何时调用API,我都会收到如下错误:

System.InvalidOperationException: The constraint entry 'inboundHttpMethod' on the route with route template 'my/path' must have a string value or be of a type which implements 'IHttpRouteConstraint'.
   at System.Web.Http.Routing.HttpRoute.ProcessConstraint(HttpRequestMessage request, Object constraint, String parameterName, HttpRouteValueDictionary values, HttpRouteDirection routeDirection)
   at System.Web.Http.Routing.HttpRoute.ProcessConstraints(HttpRequestMessage request, HttpRouteValueDictionary values, HttpRouteDirection routeDirection)
   at System.Web.Http.Routing.HttpRoute.GetRouteData(String virtualPathRoot, HttpRequestMessage request)
   at AttributeRouting.Web.Http.Framework.HttpAttributeRoute.GetRouteData(String virtualPathRoot, HttpRequestMessage request)
   at System.Web.Http.WebHost.Routing.HttpWebRoute.GetRouteData(HttpContextBase httpContext)
   at System.Web.Routing.RouteCollection.GetRouteData(HttpContextBase httpContext)
   at System.Web.Routing.UrlRoutingModule.PostResolveRequestCache(HttpContextBase context)
   at System.Web.Routing.UrlRoutingModule.OnApplicationPostResolveRequestCache(Object sender, EventArgs e)
   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

几个月来它一直没有问题.

非文档详细信息有任何用法更改.我的配置文件看起来正确.

出了什么问题？我找不到其他人举报此事.

Answer 1

绝对是在内存托管类型问题.最近,我在更新到MVC 5后遇到了同样的问题.我查看了各种帖子,实际上发现了一个最终帮助我的帖子.这是我解决这个问题的方法.

安装属性路由库后,必须在global.ascx文件中包含以下内容.

AttributeRoutingHttpConfig.RegisterRoutes(GlobalConfiguration.Configuration.Routes);

在AttributeRoutingHttpConfig类中,替换以下代码:

routes.MapHttpAttributeRoutes();

同

routes.MapHttpAttributeRoutes(cfg =>
{
            cfg.InMemory = true;
            cfg.AutoGenerateRouteNames = true;
            cfg.AddRoutesFromAssemblyOf<ANY_API_Controller>();
        });

这里,ANY_API_Controller引用您项目中的任何apicontroller类.