Question

我遇到一个问题，无法在我的应用程序中将依赖项注入与IOptions构造一起使用。这是在使用多个项目时。

我正在使用带有以下类的StructureMap：

namespace Core
{
    public class SquareConfiguration
    {
        public string AccessToken { get; set; }
        public string LocationId { get; set; }
        public string ApplicationId { get; set; }
    }
}

还有我的appsettings.json

{
    "Square": {
        "AccessToken": "sandbox-sq0atb-9uDBLTDYMn1TSEFUlOrU_g",
        "LocationId": "CBASEEW9Mi6K3Og-8kZaJ4cRODggAQ",
        "ApplicationId": "sandbox-sq0idp-hytewYq7V-YZkSGsSAit4A"
    },
}

在 Startup.cs

中

namespace Web
{
    public class Startup
    {
        private IServiceCollection _services;
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        public IServiceProvider ConfigureServices(IServiceCollection services)
        {
            services.SetCompatibilityVersion(Microsoft.AspNetCore.Mvc.CompatibilityVersion.Version_2_1);

            // Configuration
            services.AddOptions();
            services.Configure<SquareConfiguration>(Configuration.GetSection("Square"));

            // Application Services
            var container = new Container();

            container.Configure(config =>
            {
                config.Scan(i =>
                {
                    i.AssemblyContainingType(typeof(Startup)); // Web
                    i.AssemblyContainingType(typeof(BaseEntity)); // Core
                    i.Assembly("Infrastructure"); // Infrastructure
                    i.WithDefaultConventions();
                    i.ConnectImplementationsToTypesClosing(typeof(IHandle<>));
                    i.ConnectImplementationsToTypesClosing(typeof(IRender<>));
                });
                config.For(typeof(IRepository<>)).Add(typeof(EfRepository<>));
                config.Populate(services);
            });
            return container.GetInstance<IServiceProvider>();
        }
    }
}

最后是一个注入IOptions的剃刀页面：

namespace Web.Pages.Basket
{
    public class CheckoutModel : PageModel
    {
        public string ApplicationId { get; set; }
        public string LocationId { get; set; }

        public CheckoutModel(IOptions<SquareConfiguration> squareConfiguration)
        {
            var config = squareConfiguration.Value;
            ApplicationId = config.ApplicationId;
            LocationId = config.LocationId;
        }
    }
}

因此，当我导航到页面时，会收到错误消息

InvalidOperationException：尝试激活“ Web.Pages.Basket.CheckoutModel”时，无法解析类型为“ Microsoft.Extensions.Options.IOptions`1 [Core.SquareConfiguration]”的服务。

更新：添加了services.AddOptions（）;到startup.cs

将StructureMap与IOptions <t>配置一起使用并分离项目

0 个答案: