简单的注射器用asp.net mvc的4，负载控制器从另一个组件 [英] Simple Injector with asp.net mvc 4, load controller from another assembly

问题描述

我开发一个asp.net mvc的4个网站，使用简单注射器作为的Ioc工具。这将是一个可插拔的体系结构。有些控制器和视图在另一个组件（另一个mvc4应用，Plugin.Web.dll）。并从主应用程序，我知道Plugin.Web.dll的路径，加载插件。

I'm developing an asp.net mvc 4 site, using Simple Injector as a Ioc tool. It would be a pluggable architecture. Some controllers and views are in another assembly (another mvc4 application, Plugin.Web.dll). And from the main application, I know the path of Plugin.Web.dll, loading the plugin.

container.RegisterMvcControllers(Assembly.GetExecutingAssembly());

container.RegisterMvcAttributeFilterProvider();

container.Options.AllowOverridingRegistrations = true;

var appPath = AppDomain.CurrentDomain.BaseDirectory;

string[] files = Directory.GetFiles(appPath + "\\Plugins", "*",
    SearchOption.AllDirectories);

foreach (var fileName in files)
{
    Console.WriteLine(fileName);

    var assembly = Assembly.LoadFrom(fileName);

    container.RegisterMvcControllers(assembly);

    var controllerTypes =
        from type in assembly.GetExportedTypes()
        where type.Name.EndsWith("Controller",
            StringComparison.Ordinal)
        where typeof(IController).IsAssignableFrom(type)
        where !type.IsAbstract
        select type;

    // Instead of verify:
    foreach (var type in controllerTypes)
    {
        container.GetInstance(type);
    }
}            

container.Options.AllowOverridingRegistrations = false;       

container.Verify();

DependencyResolver.SetResolver(
    new SimpleInjectorDependencyResolver(container));

它给没有错误。

It gives no errors.

但是，当我点击这个点击，鉴于：

But when I click this click, in view:

@Html.ActionLink("plugin page","PluginPage","Plugin")

这使资源无法找到，HTTP 404

It gives 'The resource cannot be found., http 404'

在此先感谢

推荐答案

我怕你必须做一些更多的研究，因为你的问题是目前有点模糊，但这里有一些提示：

I'm afraid you'll have to do some more research, since your question is a bit vague at the moment, but here are some pointers:

检查 System.Web.Compilation.BuildManager.GetReferencedAssemblies（）返回你的插件组件。在所有组件中的MVC DefaultControllerFactory 搜索控制器类型从该方法返回。最好是把/ bin目录里面的插件文件夹。如果我没有记错 GetReferencedAssemblies（）看起来也位于/ bin的子目录。你可能需要编写一个定制的控制器工厂，如果插件必须更加动态加载。

Check if System.Web.Compilation.BuildManager.GetReferencedAssemblies() returns your plugin assemblies. The MVC DefaultControllerFactory searches for Controller types in all assemblies returned from that method. Best is to place your plugin folder inside the /bin directory. If I'm not mistaken GetReferencedAssemblies() also looks in sub directories of /bin. You'll probably need to write a custom controller factory if plugins must be loaded more dynamically.

另外看看<一个href=\"http://www.paraesthesia.com/archive/2013/01/21/putting-controllers-in-plugin-assemblies-for-asp-net-mvc.aspx\"相对=nofollow>这篇文章，因为它描述了如何强制BuildManager了解你的插件程序集。

Also take a look at this article, as it describes how to force the BuildManager to know about your plugin assemblies.

您配置似乎过于复杂。下面的配置应该做的伎俩还有：

Your configuration seems overly complex. The following configuration should do the trick as well:

container.RegisterMvcControllers(Assembly.GetExecutingAssembly());

container.RegisterMvcAttributeFilterProvider();

var appPath = AppDomain.CurrentDomain.BaseDirectory;

string[] files = Directory.GetFiles(appPath + "\\bin\\Plugins", "*",
    SearchOption.AllDirectories);

container.RegisterMvcControllers(
    from fileName in files
    select Assembly.LoadFrom(fileName)
);    

container.Verify();

您可以查询容器的配置看它所包含的内容。举例来说，这将查询所有注册的控制器：

You can query the container's configuration to look what it contains. For instance, this will query all registered controllers:

var registeredControllerTypes = (
    from registration in container.GetCurrentRegistrations()
    where typeof(IController).IsAssignableFrom(registration.ServiceType)
    select registration.ServiceType)
    .ToArray();

这篇关于简单的注射器用asp.net mvc的4，负载控制器从另一个组件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！