标签: unity-container

尝试使用Unity和Prism初始化模块时出现以下错误.该DLL被发现

return new DirectoryModuleCatalog() { ModulePath = @".\Modules" };

找到dll并找到名称

  #region Constructors

    public AdminModule(
        IUnityContainer container,
        IScreenFactoryRegistry screenFactoryRegistry,
        IEventAggregator eventAggregator,
        IBusyService busyService
        )
        : base(container, screenFactoryRegistry)
    {
        this.EventAggregator = eventAggregator;
        this.BusyService = busyService;
    }

    #endregion

    #region Properties

    protected IEventAggregator EventAggregator { get; set; }
    protected IBusyService BusyService { get; set; }

    #endregion

    public override void Initialize()
    {
        base.Initialize();
    }

    #region Register Screen Factories

    protected override void RegisterScreenFactories()
    {
        this.ScreenFactoryRegistry.Register(ScreenKeyType.ApplicationAdmin, typeof(AdminScreenFactory));
    }

    #endregion

    #region Register Views and Various Services

    protected override …

我正在实施Ioc,我想确保一些正确的事情.

1. 如果我使用RegisterInstance,在解析它时将始终返回单例对象？
2. BootStrapper将加载到Global.asax或最初将加载的某个地方,这意味着所有实例都将是单例？

但我想知道如何
1.每个解析创建一个单独的实例,PerResolve不能使用RegisterInstance,它只适用于RegisterType.
2.如果我将依赖对象作为静态属性,它将以相同的方式工作,如果我能够为每个解析创建单独的实例？

请帮忙？

public class ClientUser : UserServiceBase, IClientUser
{
    private  IDataServiceManager _dataServiceManager;
    public ClientUser()
    {

    }

    private IDataServiceManager DataServiceMgr
    {
        get
        {
            if (_dataServiceManager == null)
                _dataServiceManager = ProjectContainer.Instance.Resolve<IDataServiceManager>();

            return _dataServiceManager;
        }
    }    

我似乎在这里遇到了障碍,并希望得到任何能够在这一方面得到帮助的人.我不确定下面的错误消息是什么意思.我正在使用企业模式服务的缓存块,但我继续遇到下面的问题.我下载了最新版本,并尝试逐步解决这个问题,但我似乎无法解决确切的问题,我需要帮助.提前致谢

Test method WorldBank.Service.Business.UnitTest.TopicsManagerTest.Call_Children_out_of_schoolTest threw exception: 
Microsoft.Practices.ServiceLocation.ActivationException: Activation error occured while trying to get instance of type ICacheManager, key "Cache Manager" ---> Microsoft.Practices.Unity.ResolutionFailedException: Resolution of the dependency failed, type = "Microsoft.Practices.EnterpriseLibrary.Caching.ICacheManager", name = "Cache Manager".
Exception occurred while: while resolving.
Exception is: InvalidOperationException - The current type, Microsoft.Practices.EnterpriseLibrary.Caching.ICacheManager, is an interface and cannot be constructed. Are you missing a type mapping?
-----------------------------------------------
At the time of the exception, the container was:

  Resolving Microsoft.Practices.EnterpriseLibrary.Caching.ICacheManager,WuCache
 ---> System.InvalidOperationException: The current type, Microsoft.Practices.EnterpriseLibrary.Caching.ICacheManager, is …

我们有一个依赖于的类HttpContext.我们已经实现了这样:

public SiteVariation() : this(new HttpContextWrapper(HttpContext.Current))
{
}
public SiteVariation(HttpContextBase context)
{}

现在我想要做的是实例化SiteVariation类Unity,所以我们可以创建一个构造函数.但我不知道如何HttpContextWrapper(HttpContext.Current))在配置方式中在Unity中配置这个新功能.

ps这是我们使用的配置方式

<type type="Web.SaveRequest.ISaveRequestHelper, Common" mapTo="Web.SaveRequest.SaveRequestHelper, Common" />

目前,我有一个自定义ControllerFactory,我注入我的Unity容器:

在global.asax Application_Start()中:

var container = InitContainer();
DependencyResolver.SetResolver(new UnityDependencyResolver(container));

var factory = new UnityControllerFactory(container);
ControllerBuilder.Current.SetControllerFactory(factory);

在控制器工厂中,我将控制器设置为使用自定义ActionInvoker,如下所示:

protected override IController GetControllerInstance(System.Web.Routing.RequestContext requestContext, Type controllerType)
{
    var controller = base.GetControllerInstance(requestContext, controllerType) as Controller;

    if (controller != null)
        controller.ActionInvoker = new UnityActionInvoker(_container);

    return controller;
}

最后在我的自定义ActionInvoker中,我尝试使用ActionInvokers容器构建调用的操作:

protected override ActionExecutedContext InvokeActionMethodWithFilters(
        ControllerContext controllerContext,
        IList<IActionFilter> filters,
        ActionDescriptor actionDescriptor,
        IDictionary<string, object> parameters)
{
    var builtUpFilters = new List<IActionFilter>();

    foreach (IActionFilter actionFilter in filters)
    {
        builtUpFilters.Add(_container.BuildUp<IActionFilter>(actionFilter));
    }

    return base.InvokeActionMethodWithFilters(controllerContext, builtUpFilters, actionDescriptor, parameters);
}

以下是正在构建的ActionFilters之一的示例:

public class PopulatRolesAttribute …

我有以下代码:

_container = new UnityContainer();
_container.RegisterType<IDownloader, Downloader>();
_container.RegisterType<INewObject, NewObject>();
_container.RegisterType<SearchViewModel>();

SearchViewModel 构造函数注入的类:

class SearchViewModel
{
    private readonly Func<IDownloader> _downloaderFactory;
    private readonly INewObject _newObject;
    private IDownloader _downloader;

    public SearchViewModel(Func<IDownloader> downloaderFactory, INewObject newObject)
    {
        _downloaderFactory = downloaderFactory;
        _newObject = newObject;
    }        
}

问题:如何注册SearchViewModel那个Fun<>参数？

_container.RegisterType<SearchViewModel>(new InjectionConstructor(DownloaderFactory()));

上面的代码只能没有INewObject.

目标:自动解决工厂InjectionConstructor并INewObject, INewObject2, INewObject3自动解决(如无参数:) RegisterType<SearchViewModel>().

可能吗？也许是替补？

使用Unity Application块,当我们UnityContainer.Resolve<T>() 在WCF上下文中调用方法时,如何强制Unity配置创建对象的新实例？

我发现了一些与我发布的问题相似的问题,但我并没有从他们那里得到我真正需要的东西.我仍然在努力实现我的CustomMembershipProvider使用Microsoft Unity DI.

定制会员:

public class CustomMembershipProviderService : MembershipProvider
    {
        private readonly IUserService _userService;

        public CustomMembershipProviderService(IUserService userService)
        {
            this._userService = userService;
        }

        public override string ApplicationName
        {
        ...

用户服务:

public class UserService : IUserService
    {
        private readonly IUserRepository _repository;
        private readonly IUnitOfWork _unitOfWork;
        public UserService(IUserRepository repository, IUnitOfWork unitOfWork)
        {
            this._repository = repository;
            this._unitOfWork = unitOfWork;
        }
        ...

的AccountController:

public class AccountController : Controller
{
     // next line is what I don't feel too sure about what …

Unity如何获取接口的所有实例然后访问它们？

代码片段取自此处:Fail-Tracker

在StrcutureMap中,可以从程序集中注册所有类型的接口,然后访问它们,如下所示:

public class TaskRegistry : Registry
{
    public TaskRegistry()
    {
        Scan(scan =>
        {
            scan.AssembliesFromApplicationBaseDirectory(
                a => a.FullName.StartsWith("FailTracker"));
            scan.AddAllTypesOf<IRunAtInit>();
            scan.AddAllTypesOf<IRunAtStartup>();
            scan.AddAllTypesOf<IRunOnEachRequest>();
            scan.AddAllTypesOf<IRunOnError>();
            scan.AddAllTypesOf<IRunAfterEachRequest>();
        });
    }
}


  ObjectFactory.Configure(cfg =>
        {

            cfg.AddRegistry(new TaskRegistry());

        });

然后访问实现这些接口的所有类型,如:

        using (var container = ObjectFactory.Container.GetNestedContainer())
        {
            foreach (var task in container.GetAllInstances<IRunAtInit>())
            {
                task.Execute();
            }

            foreach (var task in container.GetAllInstances<IRunAtStartup>())
            {
                task.Execute();
            }
        }

这个代码在统一中的等价物是什么？

我如何在Application_BeginRequest中获得这些结构图

public void Application_BeginRequest()
    {
        Container = ObjectFactory.Container.GetNestedContainer();

        foreach (var task in Container.GetAllInstances<IRunOnEachRequest>())
        {
            task.Execute();
        }
    }

我有一个基类Class Base具有dependecy Dep和default和Injection Constructor-

Class Base : IBase
 {

    public IDep Dep { get; set; }

    public Base()
    {
        Console.WriteLine("Default Constructor Base ");
    }

    [InjectionConstructor]
    public Base(IDep dep)
    {
        Console.WriteLine("Injection Constructor Base ");
        Dep = dep;            
    }
}

我认为在解析派生类时,应该自动注入Dependency dep(通过Constructor Injection).

但是,当我从它派生一个类并解析该类时,这似乎不起作用,而是调用Base的默认构造函数.

当我从Derived Class中显式调用构造函数时,我只能使它工作.

class Derived : Base
{

    public Derived ()
    {
        Console.WriteLine("Default Constructor Derived ");
    }

    public Derived (IDep dep) : base(dep1)
    {
        Console.WriteLine("Injection Constructor Derived ");            
    }
}

unity是否提供了任何直接的方法来隐式调用基类的注入构造函数(而不是通过显式的Construtor调用)？如果没有,是否有任何理由为什么统一容器本身不做？