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我正在尝试调整 MvcSiteMapProvider 以根据存储在数据库中的一些信息创建面包屑。

这篇文章中的答案听起来很有希望，所以我实现了自己的 SiteMapNodeProvider。但是后来我不知道如何连接，所以使用新实现的 SiteMapNodeProvider 而不是静态 xml 文件（“Mvc.sitemap”）。

当我在我的项目中使用 SimpleInjector 时，我在我已经存在的注入初始化代码中调用了 setup 方法。

 public static void Initialize()
    {
        Injection.Global = new Container();
        InitializeContainer(Injection.Global);
        Injection.Global.RegisterMvcControllers(Assembly.GetExecutingAssembly());
        Injection.Global.RegisterMvcAttributeFilterProvider();
        Injection.Global.Verify();
        DependencyResolver.SetResolver(new SimpleInjectorDependencyResolver(Injection.Global));
    }

    private static void InitializeContainer(Container container)
    {
        // Setup configuration of DI
        MvcSiteMapProviderContainerInitializer.SetUp(container);

        //... register some other stuff for my project here ...
    }

MvcSiteMapProviderContainerInitializer 类由包创建：'Mvcsitemapprovider.mvc4.di.simpleinjector/4.4.5'

有人知道如何让我的项目使用新创建的 SiteMapNodeProvider 吗？我在官方文档中找不到任何关于此的文档...

编辑：我尝试了你的建议（甚至删除了旧的 DI 东西，只使用了 nuget-package 中的那个）但我仍然收到错误......这是我在 MvcSiteMapProviderContainerInitializer 中的内容

    public static void SetUp(Container container)
        {
            bool securityTrimmingEnabled = false;
            bool enableLocalization = true;
            string absoluteFileName = HostingEnvironment.MapPath("~/Mvc.sitemap");
            TimeSpan absoluteCacheExpiration = TimeSpan.FromMinutes(5);
            string[] includeAssembliesForScan = new string[] { "testsitemap" };

// Extension to allow resolution of arrays by GetAllInstances (natively based on IEnumerable).
// source from: https://simpleinjector.codeplex.com/wikipage?title=CollectionRegistrationExtensions
            AllowToResolveArraysAndLists(container);

            var currentAssembly = typeof(MvcSiteMapProviderContainerInitializer).Assembly;
            var siteMapProviderAssembly = typeof(SiteMaps).Assembly;
            var allAssemblies = new Assembly[] { currentAssembly, siteMapProviderAssembly };
            var excludeTypes = new Type[]
                {
                    typeof (SiteMapNodeVisibilityProviderStrategy),
                    typeof (SiteMapXmlReservedAttributeNameProvider),
                    typeof (SiteMapBuilderSetStrategy),
                    typeof (ControllerTypeResolverFactory),

// Added 2013-06-28 by eric-b to avoid default singleton registration:
                    typeof(XmlSiteMapController),

// Added 2013-06-28 by eric-b for SimpleInjector.Verify method:
                    typeof(PreservedRouteParameterCollection),
                    typeof(MvcResolver),
                    typeof(MvcSiteMapProvider.SiteMap),
                    typeof(MetaRobotsValueCollection),
                    typeof(RoleCollection),
                    typeof(SiteMapPluginProvider),
                    typeof(ControllerTypeResolver),
                    typeof(RouteValueDictionary),
                    typeof(AttributeDictionary)

                    ,typeof(SiteMapNodeCreator)
                };
            var multipleImplementationTypes = new Type[]
                {
                    typeof (ISiteMapNodeUrlResolver),
                    typeof (ISiteMapNodeVisibilityProvider),
                    typeof (IDynamicNodeProvider)
                };

// Single implementations of interface with matching name (minus the "I").
            CommonConventions.RegisterDefaultConventions(
                (interfaceType, implementationType) => container.RegisterSingle(interfaceType, implementationType),
                new Assembly[] { siteMapProviderAssembly },
                allAssemblies,
                excludeTypes,
                string.Empty);

// Multiple implementations of strategy based extension points
            CommonConventions.RegisterAllImplementationsOfInterfaceSingle(
                (interfaceType, implementationTypes) => container.RegisterAll(interfaceType, implementationTypes),
                multipleImplementationTypes,
                allAssemblies,
                new Type[0],
                "^Composite");

            container.Register<XmlSiteMapController>();

// Visibility Providers
            container.RegisterSingle<ISiteMapNodeVisibilityProviderStrategy>(() =>
                                                                       new SiteMapNodeVisibilityProviderStrategy(
                                                                           container.GetAllInstances
                                                                               <ISiteMapNodeVisibilityProvider>().
                                                                               ToArray(), string.Empty));

// Pass in the global controllerBuilder reference
            container.RegisterSingle<ControllerBuilder>(() => ControllerBuilder.Current);

            container.RegisterSingle<IControllerBuilder, ControllerBuilderAdaptor>();

            container.RegisterSingle<IBuildManager, BuildManagerAdaptor>();

            container.RegisterSingle<IControllerTypeResolverFactory>(() =>
                                                               new ControllerTypeResolverFactory(new string[0],
                                                                                                 container.GetInstance
                                                                                                     <IControllerBuilder
                                                                                                     >(),
                                                                                                 container.GetInstance
                                                                                                     <IBuildManager>()));

// Configure Security
            container.RegisterAll<IAclModule>(typeof(AuthorizeAttributeAclModule), typeof(XmlRolesAclModule));
            container.RegisterSingle<IAclModule>(() => new CompositeAclModule(container.GetAllInstances<IAclModule>().ToArray()));

// Setup cache




            container.RegisterSingle<System.Runtime.Caching.ObjectCache>(() => System.Runtime.Caching.MemoryCache.Default);
            container.RegisterSingleOpenGeneric(typeof(ICacheProvider<>), typeof(RuntimeCacheProvider<>));
            container.RegisterSingle<ICacheDependency>(() => new RuntimeFileCacheDependency(absoluteFileName));

            container.RegisterSingle<ICacheDetails>(() => new CacheDetails(absoluteCacheExpiration, TimeSpan.MinValue, container.GetInstance<ICacheDependency>()));

// Configure the visitors
            container.RegisterSingle<ISiteMapNodeVisitor, UrlResolvingSiteMapNodeVisitor>();


// Prepare for the sitemap node providers
            container.RegisterSingle<ISiteMapXmlReservedAttributeNameProvider>(
                () => new SiteMapXmlReservedAttributeNameProvider(new string[0]));

            container.RegisterSingle<IXmlSource>(() => new FileXmlSource(absoluteFileName));


            // Register the sitemap node providers
            container.RegisterSingle<XmlSiteMapNodeProvider>(() => container.GetInstance<XmlSiteMapNodeProviderFactory>()
                .Create(container.GetInstance<IXmlSource>()));
            container.RegisterSingle<ReflectionSiteMapNodeProvider>(() => container.GetInstance<ReflectionSiteMapNodeProviderFactory>()
                .Create(includeAssembliesForScan));

            // Register your custom sitemap node provider
            container.RegisterSingle<ISiteMapNodeProvider, CustomSiteMapNodeProvider>();

            // Register the collection of sitemap node providers (including the custom one)
            container.RegisterSingle<ISiteMapBuilder>(() => container.GetInstance<SiteMapBuilderFactory>()
                .Create(new CompositeSiteMapNodeProvider(
                    container.GetInstance<XmlSiteMapNodeProvider>(),
                    container.GetInstance<ReflectionSiteMapNodeProvider>(),
                    container.GetInstance<CustomSiteMapNodeProvider>())));


            container.RegisterAll<ISiteMapBuilderSet>(ResolveISiteMapBuilderSets(container, securityTrimmingEnabled, enableLocalization));
            container.RegisterSingle<ISiteMapBuilderSetStrategy>(() => new SiteMapBuilderSetStrategy(container.GetAllInstances<ISiteMapBuilderSet>().ToArray()));
        }

        private static IEnumerable<ISiteMapBuilderSet> ResolveISiteMapBuilderSets(Container container, bool securityTrimmingEnabled, bool enableLocalization)
        {
            yield return new SiteMapBuilderSet(
                "default",
                securityTrimmingEnabled,
                enableLocalization,
                container.GetInstance<ISiteMapBuilder>(),
                container.GetInstance<ICacheDetails>());
        }

        private static void AllowToResolveArraysAndLists(Container container)
        {
            container.ResolveUnregisteredType += (sender, e) =>
            {
                var serviceType = e.UnregisteredServiceType;

                if (serviceType.IsArray)
                {
                    RegisterArrayResolver(e, container,
                        serviceType.GetElementType());
                }
                else if (serviceType.IsGenericType &&
                    serviceType.GetGenericTypeDefinition() == typeof(IList<>))
                {
                    RegisterArrayResolver(e, container,
                        serviceType.GetGenericArguments()[0]);
                }
            };
        }

        private static void RegisterArrayResolver(UnregisteredTypeEventArgs e, Container container, Type elementType)
        {
            var producer = container.GetRegistration(typeof(IEnumerable<>)
                .MakeGenericType(elementType));
            var enumerableExpression = producer.BuildExpression();
            var arrayMethod = typeof(Enumerable).GetMethod("ToArray")
                .MakeGenericMethod(elementType);
            var arrayExpression = Expression.Call(arrayMethod, enumerableExpression);
            e.Register(arrayExpression);
        }
    }

但我仍然得到以下异常：

找不到 DynamicSiteMapNodeBuilder 类型的注册，并且无法进行隐式注册。DynamicSiteMapNodeBuilder 类型的构造函数包含名称为“siteMapNodeCreator”的 ISiteMapNodeCreator 类型的参数，该参数未注册。请确保 ISiteMapNodeCreator 已在容器中注册，或更改 DynamicSiteMapNodeBuilder 的构造函数。

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1 回答 1

1

首先，要与现有的 DI 设置集成，您应该安装MvcSiteMapProvider.MVC4.DI.SimpleInjector.Modules而不是MvcSiteMapProvider.MVC4.DI.SimpleInjector. 您可以通过从包管理器控制台运行此命令来降级：

PM> 卸载包-Id MvcSiteMapProvider.MVC4.DI.SimpleInjector

确保不要卸载任何依赖项。这将确保您的项目中没有 2 组 DI 初始化代码 - 整个应用程序应该只有 1 组。

接下来，您需要连接 DI 以及 MvcSiteMapProvider 所需的一些其他初始化代码。自述文件包含如何执行此操作的说明。以下是使用现有配置的方法。

public static void Initialize()
{
    Injection.Global = new Container();
    InitializeContainer(Injection.Global);
    Injection.Global.RegisterMvcControllers(Assembly.GetExecutingAssembly());
    Injection.Global.RegisterMvcAttributeFilterProvider();
    Injection.Global.Verify();
    DependencyResolver.SetResolver(new SimpleInjectorDependencyResolver(Injection.Global));
}

private static void InitializeContainer(Container container)
{
    // Setup configuration of DI (required)
    MvcSiteMapProviderContainerInitializer.SetUp(container);

    // Setup global sitemap loader (required)
    MvcSiteMapProvider.SiteMaps.Loader = container.GetInstance<ISiteMapLoader>();

    // Check all configured .sitemap files to ensure they follow the XSD for MvcSiteMapProvider (optional)
    var validator = container.GetInstance<ISiteMapXmlValidator>();
    validator.ValidateXml(HostingEnvironment.MapPath("~/Mvc.sitemap"));

    // Register the Sitemaps routes for search engines (optional)
    XmlSiteMapController.RegisterRoutes(RouteTable.Routes); // NOTE: You can put this in your RouteConfig.cs file if desired.

    //... register some other stuff for your project here ...
}

如果/sitemap.xml端点不起作用，您可能还需要添加此行来注册 XmlSiteMapController：

Injection.Global.RegisterMvcControllers(typeof(MvcSiteMapProvider.SiteMaps).Assembly);

要实现 ISiteMapNodeProvider，这里有一个示例：MvcSiteMapProvider ISiteMapBuilder 与 IDynamicNodeProvider 结合使用。

要注册您的自定义 ISiteMapNodeProvider，您只需确保将其添加到 SiteMapBuilder 的构造函数中。您还可以根据需要从下面的代码中排除现有的 SiteMapNodeProviders。

// Register the sitemap node providers
container.RegisterSingle<XmlSiteMapNodeProvider>(() => container.GetInstance<XmlSiteMapNodeProviderFactory>()
    .Create(container.GetInstance<IXmlSource>()));
container.RegisterSingle<ReflectionSiteMapNodeProvider>(() => container.GetInstance<ReflectionSiteMapNodeProviderFactory>()
    .Create(includeAssembliesForScan));

// Register your custom sitemap node provider
container.RegisterSingle<ISiteMapNodeProvider, CustomSiteMapNodeProvider>();

// Register the collection of sitemap node providers (including the custom one)
container.RegisterSingle<ISiteMapBuilder>(() => container.GetInstance<SiteMapBuilderFactory>()
    .Create(new CompositeSiteMapNodeProvider(
        container.GetInstance<XmlSiteMapNodeProvider>(), 
        container.GetInstance<ReflectionSiteMapNodeProvider>(), 
        container.GetInstance<CustomSiteMapNodeProvider>())));

请注意，IDynamicNodeProvider（记录在案）与 ISiteMapNodeProvider 几乎完全相同，因此您可以使用该选项。有3个主要区别：

  1. 使用 IDynamicNodeProvider，您必须创建一个定义 dynamicNodeProvider 属性的“模板”节点，并且模板节点本身不会包含在 SiteMap 中，因此它必须与处理动态节点的 ISiteMapNodeProvider 实现结合使用（内置-in ISiteMapNodeProviders 会自动执行此操作）。
  2. IDynamicNodeProvider 不需要成为 DI 设置的一部分，因为它已经由 XmlSiteMapNodeProvider 和 ReflectionSiteMapNodeProvider 处理。
  3. 使用 ISiteMapNodeProvider，您可以直接使用 ISiteMapNode 对象，使用 IDynamicNodeProvider，您可以使用抽象 (DynamicNodeProvider)，并且会自动进行转换。

关于 SimpleInjector.Verify

如果要Verify()工作，需要在 MvcSiteMapProviderContainerInitializer 中的 excludeTypes 数组中添加以下内容。

typeof(SiteMapNodeCreator),
typeof(DynamicSiteMapNodeBuilder)

我已将它们添加到模块中，并将在下一个版本的 Nuget 包中，但这些模块不会更新，因此您必须手动进行。

请注意，该Verify()方法尝试创建在容器中注册的所有内容的实例 - 包括在现实世界中从未由容器创建的对象。因此，如果您使用该Verify()方法，则必须更加勤奋，以免意外注册某些内容。这使得基于约定的注册更加困难。

于 2013-11-08T10:34:40.747 回答