带有其他参数的Unity构造函数注入 [英] Unity constructor injection with other parameter

问题描述

我有一个带有构造函数的类，如下所示:

I have a class with a constructor that looks like the following:

public BatchService(IRepository repository, ILogger logger, string user)

在我的DI引导程序类中，我具有以下RegisterType命令:

In my DI bootstrapper class, I have the following RegisterType command:

.RegisterType<BatchService>(
    new InjectionConstructor(
        new ResolvedParameter<IRepository>("SomeRepository"), 
        new ResolvedParameter<ILogger>("DatabaseLogger")))

在我的客户代码中，我要实例化BatchService，如下所示:

In my client code, I want to instantiate BatchService as follows:

BatchService batchService = DIContainer.Resolve<BatchService>()

如您所见，我有一个名为user的字符串参数，它是BatchService的构造函数的一部分，它不是DI逻辑的一部分.如果需要在BatchService类中使用user，如何最好地处理这种情况?

As you can see, I have a string parameter called user as part of the constructor to BatchService that is not part of the DI logic. How should I best handle this situation if I need to use user in the BatchService class?

推荐答案

请不要如果要创建需要运行时参数的对象，请使用工厂.您甚至可以通过使用类型化工厂或让Unity为您生成工厂代表.

If you want to create objects that need runtime parameters use a factory. You can even drop the act of implementing that factory by either using the Unity version of Typed Factories or let Unity generate factory delegates for you.

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