我采取的方法是切换到外部 DI，然后实现一个自定义 IStringLocalizer 类，该类可以从另一个程序集中读取资源。这是一个工作示例。我创建了一个演示应用程序 https://github.com/NightOwl888/MvcSiteMapProvider_ExternalResources也在 GitHub 上。
using System;
using System.Collections.Specialized;
using System.Resources;
namespace MvcSiteMapProvider.Globalization
{
public class ResourceManagerStringLocalizer
: IStringLocalizer
{
public ResourceManagerStringLocalizer(
ResourceManager resourceManager
)
{
if (resourceManager == null)
throw new ArgumentNullException("resourceManager");
this.resourceManager = resourceManager;
}
protected readonly ResourceManager resourceManager;
/// <summary>
/// Gets the localized text for the supplied attributeName.
/// </summary>
/// <param name="attributeName">The name of the attribute (as if it were in the original XML file).</param>
/// <param name="value">The current object's value of the attribute.</param>
/// <param name="enableLocalization">True if localization has been enabled, otherwise false.</param>
/// <param name="classKey">The resource key from the ISiteMap class.</param>
/// <param name="implicitResourceKey">The implicit resource key.</param>
/// <param name="explicitResourceKeys">A <see cref="T:System.Collections.Specialized.NameValueCollection"/> containing the explicit resource keys.</param>
/// <returns></returns>
public virtual string GetResourceString(string attributeName, string value, bool enableLocalization, string classKey, string implicitResourceKey, NameValueCollection explicitResourceKeys)
{
if (attributeName == null)
{
throw new ArgumentNullException("attributeName");
}
if (enableLocalization)
{
string result = string.Empty;
if (explicitResourceKeys != null)
{
string[] values = explicitResourceKeys.GetValues(attributeName);
if ((values == null) || (values.Length <= 1))
{
result = value;
}
else if (this.resourceManager.BaseName.Equals(values[0]))
{
try
{
result = this.resourceManager.GetString(values[1]);
}
catch (MissingManifestResourceException)
{
if (!string.IsNullOrEmpty(value))
{
result = value;
}
}
}
}
if (!string.IsNullOrEmpty(result))
{
return result;
}
}
if (!string.IsNullOrEmpty(value))
{
return value;
}
return string.Empty;
}
}
}
然后，您可以将其注入到 DI 配置模块中（显示了 StructureMap 示例，但任何 DI 容器都可以）。
首先，您需要通过将 IStringLocalizer 接口添加到 exceptTypes 变量来指定不自动注册它。
var excludeTypes = new Type[] {
// Use this array to add types you wish to explicitly exclude from convention-based
// auto-registration. By default all types that either match I[TypeName] = [TypeName] or
// I[TypeName] = [TypeName]Adapter will be automatically wired up as long as they don't
// have the [ExcludeFromAutoRegistrationAttribute].
//
// If you want to override a type that follows the convention, you should add the name
// of either the implementation name or the interface that it inherits to this list and
// add your manual registration code below. This will prevent duplicate registrations
// of the types from occurring.
// Example:
// typeof(SiteMap),
// typeof(SiteMapNodeVisibilityProviderStrategy)
typeof(IStringLocalizer)
};
然后提供 ResourceManagerStringLocalizer（及其依赖项）的显式注册。
// Configure localization
// Fully qualified namespace.resourcefile (.resx) name without the extension
string resourceBaseName = "SomeAssembly.Resources.Resource1";
// A reference to the assembly where your resources reside.
Assembly resourceAssembly = typeof(SomeAssembly.Class1).Assembly;
// Register the ResourceManager (note that this is application wide - if you are
// using ResourceManager in your DI setup already you may need to use a named
// instance or SmartInstance to specify a specific object to inject)
this.For<ResourceManager>().Use(() => new ResourceManager(resourceBaseName, resourceAssembly));
// Register the ResourceManagerStringLocalizer (uses the ResourceManger)
this.For<IStringLocalizer>().Use<ResourceManagerStringLocalizer>();
然后只需适当指定资源即可。您需要使用基本名称来启动它们（在本例中SomeAssembly.Resources.Resource1)，然后指定资源的键作为第二个参数。
<mvcSiteMapNode title="$resources:SomeAssembly.Resources.Resource1,ContactTitle" controller="Home" action="Contact"/>
请注意，正确设置 BaseName 是使其正常工作的关键。请参阅以下 MSDN 文档：http://msdn.microsoft.com/en-us/library/yfsz7ac5(v=vs.110).aspx http://msdn.microsoft.com/en-us/library/yfsz7ac5(v=vs.110).aspx
