每次使用unity解析类型时注入新的构造方法参数 [英] Injecting new constructor parameters every time a type is resolved using unity

问题描述

我最近遇到了一个问题，我希望每次解决时都将新类型注入到请求的类型中.

I've just come across an issue recently where I want new types injected into the requested type every time it is resolved.

我要注册类型的当前代码是

The current code I have to register the type is

container.RegisterType<IFirstT, FirstT>();

container.RegisterType<ISecondT, SecondT>();

container.RegisterType<IInjectableT, InjectableT>()
    .Configure<InjectedMembers>()
    .ConfigureInjectionFor<InjectableT>(
          new InjectionConstructor(
                  container.Resolve<IFirstT>(),
                  container.Resolve<ISecondT>(),
           )
    );

我现在意识到，每次我解析 IInjectableT 时，都会使用相同的注入构造函数.

I've now come to realise that the same injection constructor is being used every time I resolve the IInjectableT.

InjectionConstructor是否有可能每次都统一创建新的依赖项?

Is it possible that the InjectionConstructor will create new Dependencies everytime with unity?

我意识到我可以解决 InjectableT 的构造函数中的依赖关系并实现相同的功能，但是我打算让IOC控制这种行为并选择是否有新实例应该被注入或现有的传递给它.

I realise that I can just resolve the dependencies inside of the constructor of InjectableT and achieve the same thing, however I was intending for the IOC to controll this type of behaviour and choose if a new instance should be injected or an existing one passed to it.

推荐答案

您应使用ResolvedParameter:

You should use ResolvedParameter:

container.RegisterType<IInjectableT, InjectableT>(
          new InjectionConstructor(
                  new ResolvedParameter<IFirstT>(),
                  new ResolvedParameter<ISecondT>()
           )
    );

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