什么取代了CallContextServiceLocator？

Question

在ASP.NET 5的beta 8中，我可以访问CallContextServiceLocator。 RC1中不再提供此功能。

如何在以下代码中替换对CallContextServiceLocator的调用。我正在使用该代码来创建服务的测试实例。

    private static TestServer CreateTestServer(HttpMessageHandler backchannelHttpHandler = null)
    {
        HostingEnvironment hostingEnvironment = new HostingEnvironment { EnvironmentName = "Testing", };
        Microsoft.Extensions.PlatformAbstractions.IApplicationEnvironment appEnv =
            CallContextServiceLocator.Locator.ServiceProvider.GetRequiredService<Microsoft.Extensions.PlatformAbstractions.IApplicationEnvironment>();

        Startup serviceStartup = new Startup(hostingEnvironment, appEnv, backchannelHttpHandler);

        Action<IApplicationBuilder> configureApp = app => serviceStartup.Configure(app, appEnv, new LoggerFactory());
        Action<IServiceCollection> configureServices = svc => serviceStartup.ConfigureServices(svc);

        WebApplicationBuilder webAppBuilder = new WebApplicationBuilder();
        webAppBuilder.Configure(configureApp);
        webAppBuilder.ConfigureServices(configureServices);

        return new TestServer(webAppBuilder);
    }

Answer 1

替换为PlatformServices.Default来自Microsoft.Extensions.PlatformAbstractions

Answer 2

本身没有任何替代品，它已经死了RIP :)。您可以使用平台服务来获取特定组件。此外，托管API已经被修改为不那么糟糕，因此默认情况下它不需要传递任何内容。