运行时服务不再注入DNX控制台应用程序（RC1） [英] Runtime services no longer get injected into DNX console app (RC1)

问题描述

我曾经能够将诸如 IApplicationEnvironment 之类的运行时服务注入DNX的 Pogram 类的构造函数中控制台应用程序。但是，使用RC1的最新CI版本，将不再注入服务：

I used to be able to inject runtime services like IApplicationEnvironment into the constructor of the Pogram class of a DNX console application. However, using the latest CI build of RC1, the services no longer get injected:

public Program(IApplicationEnvironment env)
{
    if (env == null)
    {
        // env is null.
        throw new ArgumentNullException(nameof(env));
    }
}

推荐答案

DNX平台希望与常规 Program.Main 入口点兼容。因此，他们将依赖项注入删除到 Program 类中。

The DNX platform wants to be compatible with regular Program.Main entry points. Therefore they removed dependency injection into the Program class.

相反，您可以使用新的 PlatformServices 类，用于访问运行时服务：

In stead, you can use the new PlatformServices class which provides access to runtime services:

public Program()
{
    var env = PlatformServices.Default.Application;
}

PlatformServices 类位于 Microsoft.Extensions.PlatformAbstractions 命名空间。

诸如 ILibraryExporter 和 ICompilerOptionsProvider 现在通过

Types like ILibraryExporter and ICompilerOptionsProvider are now exposed through the CompilationServices class in the Microsoft.Extensions.CompilationAbstractions namespace.

>参考

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