Odata使用jquery get返回404错误

Question

我正在尝试配置一些 odata 导航，但看不到问题所在。

配置：

public class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            ODataModelBuilder modelBuilder = new ODataConventionModelBuilder();
            var entitySetConfiguration = modelBuilder.EntitySet<Catalog>("Catalog");
            entitySetConfiguration.EntityType.Ignore(t => t.OutboundCatalogItems);
            entitySetConfiguration.EntityType.Ignore(t => t.OutboundColumns);
            entitySetConfiguration.EntityType.Ignore(t => t.OutboundProcessor);
            entitySetConfiguration.EntityType.Ignore(t => t.OutboundProcessorID);
            entitySetConfiguration.EntityType.Ignore(t => t.RelationshipId);
            entitySetConfiguration.EntityType.Ignore(t => t.CatalogConfigurationProperties);
            var model = modelBuilder.GetEdmModel();
            config.Routes.MapODataRoute("ODataRoute", "odata", model);

            config.EnableQuerySupport();

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

注册

public class MvcApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            GlobalConfiguration.Configure(WebApiConfig.Register);
        }

        protected void Application_EndRequest(object sender, EventArgs e)
        {
            Helpers.DataAccess.DisposePDBUnitOfWork();
        }
    }

控制器

public class CatalogController : EntitySetController<Catalog, int>
    {
        private readonly PDBCoreUnitOfWork _unitOfWork;

        public CatalogController()
        {
            _unitOfWork = new PDBCoreUnitOfWork(0);
        }

        public override IQueryable<Catalog> Get()
        {
            return _unitOfWork.Repository<Catalog>().Query().Get();
        }

        protected override void Dispose(bool disposing)
        {
            _unitOfWork.Dispose();
            base.Dispose(disposing);
        }
    }

脚本

<script type="text/javascript">

        var catalogApi = "/odata/Catalog";
        $.getJSON(catalogApi)
            .done(function(json) {
                console.log("Json data: " + json);
            })
            .fail(function(jqxhr, textStatus, error) {
                var err = textStatus + ", " + error;
                console.log("Request Failed: " + err);
           });

</script>

当使用提琴手 localhost:port/odata 返回 404 时，localhost:port/odata/Catalog 也是如此

我一定是在这里遗漏了一些基础知识。Unit of work with oData

---

更新 当我注释掉以下内容时：

protected void Application_Start()
        {
            //AreaRegistration.RegisterAllAreas();
            //RouteConfig.RegisterRoutes(RouteTable.Routes);
            GlobalConfiguration.Configure(WebApiConfig.Register);
            //GlobalConfiguration.Configure(ODataConfig.Register);
        }

和

public class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            ODataModelBuilder modelBuilder = new ODataConventionModelBuilder();
            //var entitySetConfiguration = modelBuilder.EntitySet<Catalog>("Catalog");
            //entitySetConfiguration.EntityType.Ignore(t => t.OutboundCatalogItems);
            //entitySetConfiguration.EntityType.Ignore(t => t.OutboundColumns);
            //entitySetConfiguration.EntityType.Ignore(t => t.OutboundProcessor);
            //entitySetConfiguration.EntityType.Ignore(t => t.OutboundProcessorID);
            //entitySetConfiguration.EntityType.Ignore(t => t.RelationshipId);
            //entitySetConfiguration.EntityType.Ignore(t => t.CatalogConfigurationProperties);
            var model = modelBuilder.GetEdmModel();

            //config.MapHttpAttributeRoutes();
            config.Routes.MapODataRoute("odata", "odata", model);

            config.EnableQuerySupport();

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

输入 localhost/port/odata 返回：

This XML file does not appear to have any style information associated with it. The document tree is shown below.
<service xmlns="http://www.w3.org/2007/app" xmlns:atom="http://www.w3.org/2005/Atom" xml:base="http://localhost:45837/odata">
<workspace>
<atom:title type="text">Default</atom:title>
</workspace>
</service>

但是当我在 odata 之后添加 Catalog 时，它会抛出 404 not found。仍然迷失，但正在取得进展。

Answer 1

EntitySetController 和 AsyncEntitySetController 在新的 WebAPI 版本中被删除。您始终可以使用“public class {EntitySetName}Controller : ODataController 作为您的控制器。

顺便说一句，您可以参考以下博客了解 WebApi 2.2 与 OData V4 的新用法：

Getting started with ASP.NET Web API 2.2 for OData v4.0

Answer 2

我需要交换注册顺序

protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
            GlobalConfiguration.Configure(WebApiConfig.Register);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            GlobalConfiguration.Configure(ODataConfig.Register);
        }

并改变了这个

public class CatalogController : EntitySetController<Catalog, int>
    {
       ....
    }

到这里

public class CatalogController : OdataController
    {
       ....
    }