C# WebApi中的内联约束错误
我的webapi中有自定义路由。当我调用它时,我得到以下错误C# WebApi中的内联约束错误,c#,asp.net-web-api,asp.net-web-api2,C#,Asp.net Web Api,Asp.net Web Api2,我的webapi中有自定义路由。当我调用它时,我得到以下错误 类型为“DefaultInlineConstraintResolver”的内联约束解析程序无法解析以下内联约束:“MovieData”。 堆栈跟踪: at System.Web.Http.Routing.InlineRouteTemplateParser.GetInlineConstraint(组约束组、布尔等参变量、IInlineConstraintResolver) 位于System.Web.Http.Routing.Inline
类型为“DefaultInlineConstraintResolver”的内联约束解析程序无法解析以下内联约束:“MovieData”。
堆栈跟踪:
at System.Web.Http.Routing.InlineRouteTemplateParser.GetInlineConstraint(组约束组、布尔等参变量、IInlineConstraintResolver)
位于System.Web.Http.Routing.InlineRouteTemplateParser.ParseRouteTemplate(字符串routeTemplate,IDictionary2默认值,IDictionary2约束,IInlineConstraintResolver约束求解器)
位于System.Web.Http.Routing.DirectRouteFactoryContext.CreateBuilder(字符串模板,IInlineConstraintResolver)
位于System.Web.Http.Routing.DirectRouteFactoryContext.CreateBuilderInternal(字符串模板)
位于System.Web.Http.Routing.DirectRouteFactoryContext.CreateBuilder(字符串模板)
位于System.Web.Http.RouteAttribute.System.Web.Http.Routing.IDirectRouteFactory.CreateRoute(DirectRouteFactoryContext上下文)
在System.Web.Http.Routing.DefaultDirectRouteProvider.CreateRouteEntry(字符串前缀,IDirectRouteFactory工厂,IReadOnlyCollection
1操作,IInlineConstraintResolver constraintResolver,布尔目标操作)
在System.Web.Http.Routing.DefaultDirectRouteProvider.CreateRouteEntries(字符串前缀,IReadOnlyCollection
1工厂,IReadOnlyCollection1操作,IInlineConstraintResolver constraintResolver,Boolean targetIsAction)
在System.Web.Http.Routing.DefaultDirectRouteProvider.GetActionDirectRoutes(HttpActionDescriptor actionDescriptor,IReadOnlyList1工厂,IInlineConstraintResolver constraintResolver)
在System.Web.Http.Routing.DefaultDirectRouteProvider.GetDirectRoutes(HttpControllerDescriptor controllerDescriptor,IReadOnlyList1 actionDescriptors,IInlineConstraintResolver constraintResolver)
位于System.Web.Http.Routing.AttributeRoutingMapper.AddRouteEntries(SubcuteCollection收集器、HttpConfiguration配置、IInlineConstraintResolver constraintResolver、IDirectRouteProvider directRouteProvider)
在System.Web.Http.Routing.AttributeRoutingMapper.c_uuuDisplayClass2.c_uuuDisplayClass4.b_uuu1()
在System.Web.Http.Routing.RouteCollectionRoute.EnsureInitialized(Func
1初始值设定项)
在System.Web.Http.Routing.AttributeRoutingMapper.c__DisplayClass2.b__0(HttpConfiguration配置)中
在System.Web.Http.HttpConfiguration.EnsureInitialized()上
在System.Web.Http.GlobalConfiguration.Configure(操作1配置回调)
在c:\Users\VinoBharathi\Documents\visualstudio 2013\Projects\MoviesAPI\MoviesAPI\Global.asax.cs中的MoviesAPI.WebApiApplication.Application_Start()处:第14行`
ApiController:
[HttpGet]
[路由(“~/api/Values/GetMovieByCategory/{movieData:movieData}”)]
公共IEnumerable GetMovieByCategory(MovieData MovieData)
{
IEnumerable movieDataByCat=null;
字符串[]参数转换;
如果(movieData.Cast.Count()!=0)
paramCast=movieData.Cast;
IEnumerable GetAllMovies=null;
GetAllMovies=repo.GetAll();
if (movieData.Cast == null || movieData.Cast.Count() == 0)
{
movieDataByCat = from data in GetAllMovies
where (data.Classification == (movieData.Classification == null ? string.Empty : movieData.Classification) ||
data.Genre == (movieData.Genre == null ? string.Empty : movieData.Genre) ||
data.Rating == movieData.Rating ||
data.ReleaseDate == movieData.ReleaseDate ||
data.Title == (movieData.Title == null ? string.Empty : movieData.Title))
select data;
}
return movieDataByCat;
}`
帮助我克服这个问题。您需要实现名为MovieData
taht的内联约束继承自IHttpRouteConstraint
。
它在路由中声明:[route(“~/api/Values/GetMovieByCategory/{movieData:movieData}”)]
在WebApiConfig文件中注册它:
var constraintResolver = new DefaultInlineConstraintResolver();
constraintResolver.ConstraintMap.Add("MovieData", typeof(MovieDataRouteConstraint));
config.MapHttpAttributeRoutes(constraintResolver);