我可以将构造函数参数传递给 Unity 的 Resolve() 方法吗? [英] Can I pass constructor parameters to Unity's Resolve() method?

问题描述

我正在使用 Microsoft 的 Unity 进行依赖注入，我想做这样的事情:

I am using Microsoft's Unity for dependency injection and I want to do something like this:

IDataContext context = _unityContainer.Resolve<IDataContext>();
var repositoryA = _unityContainer.Resolve<IRepositoryA>(context); //Same instance of context
var repositoryB = _unityContainer.Resolve<IRepositoryB>(context); //Same instance of context

IDataContext context2 = _unityContainer.Resolve<IDataContext>(); //New instance
var repositoryA2 = _unityContainer.Resolve<IRepositoryA>(context2);

RepositoryA 和 RepositoryB 都有一个带有 IDataContext 参数的构造函数，我希望 Unity 使用我的上下文初始化存储库交上来.另请注意，IDataContext 未在 Unity 中注册(我不想要 IDataContext 的 3 个实例).

RepositoryA and RepositoryB both have a constructor that takes an IDataContext parameter, and I want Unity to initialize the repository with the context that I pass it. Also note that IDataContext is not registered with Unity (I don't want 3 instances of IDataContext).

推荐答案

截至今天，他们已经添加了此功能:

As of today they have added this functionality:

这是最新的:

http://unity.codeplex.com/SourceControl/changeset/view/33899

在这里讨论:

http://unity.codeplex.com/Thread/View.aspx?线程 ID=66434

示例:

container.Resolve<IFoo>(new ParameterOverrides<Foo> { { "name", "bar" }, { "address", 42 } });"

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