来自Angular的呼叫控制器问题

Question

我在从Angle ClientApp服务运行Controller时遇到问题。

不明白为什么Controller没有接到任何电话。

我的角度服务代码：

export class MediaService extends BaseService {

    constructor(private http: Http, configService: ConfigService) {
        super(configService);
    }

    getMedia(mediaId: string) {
        return this.http
            .get(
            'api/media',
            {
                params: {
                    id: mediaId
                },
                headers: this.getBaseHttpHeaders()
            }).map(result => {
                return result.json();
            })
            .map(result => {
                if (result.status === 1) {
                    return { success: true, data: result.data };
                }
                else {
                    return { success: false, data: result.data };
                }
            });
    }

MediaController.cs

[Authorize(Policy = "UserExists")]
    [Produces("application/json")]
    [Route("api/media")]
    public class MediaController : BaseController
    {
        private readonly IMediaService _mediaService;        
        private readonly ICollectionPhotosService _collectionPhotosService;

        public MediaController(IUserService userService, IMediaService mediaService, ICollectionPhotosService collectionPhotosService) : base(userService)
        {
            _mediaService = mediaService;
            _collectionPhotosService = collectionPhotosService;
        }

        [HttpGet]
        public IActionResult Index(string id, string collectionPhotoId = null)
        {
            try
            {
                Guid guidId = Guid.Empty;
                Guid collectionPhotoGuidId = Guid.Empty;

                if ((!Guid.TryParse(id, out guidId) && collectionPhotoId == null) || (!Guid.TryParse(collectionPhotoId, out collectionPhotoGuidId) && id == null))
                {
                    return NotFound();
                }

                if (string.IsNullOrWhiteSpace(UserId))
                {
                    return GenerateBadResult("Incorrect user");
                }

                var isItemMedia = guidId != Guid.Empty;

                return isItemMedia ? HandleMediaItem(guidId, UserId) : HandleCollectionPhotoItem(collectionPhotoGuidId, UserId);
            }
            catch (Exception)
            {
                return GenerateBadResult("Some error occured");
            }
        }

BaseService.cs

public class BaseController : Controller
    {
        protected readonly IUserService _userService;

        public BaseController(IUserService userService)
        {
            _userService = userService;
        }

Startup.cs

public void ConfigureServices(IServiceCollection services)
        {
            DbInitializer.AdminV2Initialize(Configuration.GetConnectionString("DefaultConnection"));

            // Get options from app settings
            var jwtAppSettingOptions = Configuration.GetSection(nameof(JwtIssuerOptions));
            services.Configure<SmtpClientConfig>(Configuration.GetSection(nameof(SmtpClientConfig)));

            services.TryAddTransient<IHttpContextAccessor, HttpContextAccessor>();
            services.AddScoped<ITokenService, TokenService>();
            services.AddScoped<IEmailProvider, EmailProvider>();
            services.AddScoped<IUserService, UserService>();
            services.AddScoped<IMediaService, MediaService>();
            services.AddScoped<ICollectionService, CollectionService>();
            services.AddScoped<IEmailService, EmailService>();
            services.AddScoped<ILocationService, LocationService>();
            services.AddScoped<ICollectionPhotosService, CollectionPhotosService>();
            services.AddSingleton<IUserDataCSVGenerator, UserDataCSVGenerator>();

我也有AuthController，它工作正常。 当我使用MediaController时，我只有500个内部服务器错误（ 控制器甚至不尝试初始化-什么问题？