路径模板分隔符'/'不能连续出现 - 属性路由问题

Question

配置与错误无关

这是我在App_Start/WebApiConfig.cs中对Web API的配置:

public static void Register(HttpConfiguration config)
    {
        // Web API routes
        config.MapHttpAttributeRoutes();

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

这是我的global.asax类:

GlobalConfiguration.Configure(WebApiConfig.Register);

这是错误

但是每当应用程序启动时,我都会遇到以下异常:

路径模板分隔符'/'不能连续出现.它必须由参数或文字值分隔

堆栈跟踪:

at System.Web.Http.Routing.RouteParser.Parse(String routeTemplate)
at System.Web.Http.Routing.DirectRouteFactoryContext.CreateBuilder(String template, IInlineConstraintResolver constraintResolver)
at System.Web.Http.Routing.DirectRouteFactoryContext.CreateBuilderInternal(String template)
at System.Web.Http.Routing.DirectRouteFactoryContext.CreateBuilder(String template)
at System.Web.Http.RouteAttribute.System.Web.Http.Routing.IDirectRouteFactory.CreateRoute(DirectRouteFactoryContext context)
at System.Web.Http.Routing.AttributeRoutingMapper.CreateRouteEntry(String prefix, IDirectRouteFactory factory, IReadOnlyCollection`1 actions, IInlineConstraintResolver constraintResolver, Boolean targetIsAction)
at System.Web.Http.Routing.AttributeRoutingMapper.AddRouteEntries(SubRouteCollection collector, String prefix, IReadOnlyCollection`1 factories, IReadOnlyCollection`1 actions, IInlineConstraintResolver constraintResolver, Boolean targetIsAction)
at System.Web.Http.Routing.AttributeRoutingMapper.AddRouteEntries(SubRouteCollection collector, HttpControllerDescriptor controller, IInlineConstraintResolver constraintResolver)
at System.Web.Http.Routing.AttributeRoutingMapper.AddRouteEntries(SubRouteCollection collector, HttpConfiguration configuration, IInlineConstraintResolver constraintResolver)
at System.Web.Http.Routing.AttributeRoutingMapper.<>c__DisplayClass2.<>c__DisplayClass4.<MapAttributeRoutes>b__1()
at System.Web.Http.Routing.RouteCollectionRoute.EnsureInitialized(Func`1 initializer)
at System.Web.Http.Routing.AttributeRoutingMapper.<>c__DisplayClass2.<MapAttributeRoutes>b__0(HttpConfiguration config)
at System.Web.Http.HttpConfiguration.EnsureInitialized()
at System.Web.Http.GlobalConfiguration.Configure(Action`1 configurationCallback)
at Sample.Rest.WebHost.WebApiApplication.Application_Start() in d:\sample\Sample.Rest.WebHost\Global.asax.cs:line 33

该错误是由Route属性引起的

这就是我在控制器上使用属性路由的方法:

[RoutePrefix("v1")]
public class MarketController : ApiController
{
    [HttpGet]
    [Route("/marketdata/tickerinfo")]
    public IHttpActionResult TickerInfo(string currencyPair)
    {

Answer 1

出现上述错误的原因是我在操作的路由属性中使用了额外的"/".上述控制器中定义的操作应如下所示:

    [HttpGet]
    [Route("marketdata/tickerinfo")]
    public IHttpActionResult TickerInfo(string currencyPair)
    {

Answer 2

我有两个（或多个）斜杠出现相同的错误。

[Route("marketdata//tickerinfo")]

更改字符串时很容易发生。