Configuration.GetSection返回null值

Question

我无法让Configuration.GetSection在.Value中返回数据。我认为我实施了question的所有建议，但仍无法使其发挥作用。

appsettings.json

{
    "AmazonSettings": {
       "BaseUrl": "https://testing.com",
       "ClientID": "123456",
       "ResponseType": "code",
       "RedirectUri": "https://localhost:44303/FirstTimeWelcome"
    },
}

启动：

public IConfiguration Configuration { get; }

public Startup(IHostingEnvironment env)
{
    //Set up configuration sources.
    var builder = new ConfigurationBuilder()
        .SetBasePath(env.ContentRootPath)
        .AddJsonFile("appsettings.json")
        .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
        .AddEnvironmentVariables();

    Configuration = builder.Build();
}

ConfigurationServices：

public void ConfigureServices(IServiceCollection services)
{

    services.AddOptions();

    services.Configure<AmazonSettings>(Configuration.GetSection("AmazonSettings"));

    services.AddMvc()

AmazonSettings类：

public class AmazonSettings
{
    public string BaseUrl { get; set; }
    public string ClientID { get; set; }
    public string RedirectUri { get; set; }
    public string ResponseType { get; set; }

}

我试图通过IOptions访问AmazonSettings.Value：

public class HomeController : Controller
{
    private readonly AmazonSettings _amazonSettings;

    public IActionResult Index()
    {
        ViewBag.LoginUrl = _amazonSettings.BaseUrl;
        return View("/Pages/Index.cshtml"); ;
    }

    public HomeController(IOptions<AmazonSettings> amazonSettings)
    {
        _amazonSettings = amazonSettings.Value;
    }

当我调试时，Value为空：

Answer 1

我的问题是HomeController中的代码从未受到过攻击。

我可以到达那里，并且.Value已填充，如果我在控制器上方添加了路由[＆＃34; home＆＃34;]并导航到localhost / home。我无法使用路由[＆＃34;＆＃34;]但是因为我使用了Razor页面而导致了一个模糊的异常。

然后我意识到我根本不需要使用Razor Pages的控制器。我可以直接从Index.cshtml.cs

访问我的数据

public class IndexModel : PageModel
    private readonly AmazonSettings _amazonSettings;
    public string LoginUrl;

    public IndexModel(IOptions<AmazonSettings> amazonSettings)
    {
        _amazonSettings = amazonSettings.Value;
    }

在我的Index.cshtml页面中具有以下访问权限：

<a href=@Model.LoginUrl><h1>@Model.LoginUrl</h1></a>

事实证明，在调试时，GetSection在启动代码中返回的.Value可能为null，但它会在到达IndexModel时填充。