如何解决两个紧密耦合的命名空间(在不同的程序集中)之间的依赖关系? [英] how to resolve a dependency between two tightly coupled namespace(in different assembly)?

问题描述

假设我有一个名为ITestService的接口，它具有成对的实现，在程序集"A"中将其称为DefaultTestService.我在Autofac容器中将DefaultTestService类注册为ITestService服务.另一方面，程序集"A"具有对程序集"B"的引用.现在，我要通过程序集"B"中对应的接口(ITestService)解析DefaultTestService，为此，我必须先添加对程序集"A"的引用这样我就可以访问ITestService并将其传递给Resolve<T>()方法.

suppose i have an interface called ITestService with it's paired implementation, lets call it DefaultTestService in Assembly "A". I register DefaultTestService class as ITestService service in Autofac container. On the other hand assembly "A" has a reference to assembly "B".now I want to resolve DefaultTestService through it's corresponding interface (ITestService) in assembly "B", for doing this first I have to add reference to assembly "A" so that I can access and pass ITestService to Resolve<T>() method.

循环依赖！

好的.我们可以通过为一个组件分配一个键来解决它，并通过键来解决它.但是如果我没有注册依赖项(也没有分配给它一个键)怎么办?

ok.we can solve it by assigning a key for a component and resolve it by key.but what if the dependency not registered by me (and a key not assigned to it)?

有什么主意吗? 谢谢你的建议.

Any idea? thanks for you'r suggestion.

推荐答案

如果程序集A依赖于程序集B，并且两个程序集都需要ITestService，则必须在程序集B中定义此接口，或者在程序集B中定义该接口，而程序集A和B都依赖于此程序集上.

If assembly A depends on B and both assemblies need ITestService, this interface must be defined in assembly B, or a third assembly that both A and B depend on.

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