c# - Asp.Net Core 2.1 Identity - UserStore 依赖注入(inject)

Question

我正在尝试为我的身份模型实现自定义 UserStore；但是，我在应用程序启动时收到此运行时错误:

InvalidOperationException: Unable to resolve service for type '[Project].Models.Identity.ApplicationUserStore' while attempting to activate '[Project].Models.Identity.ApplicationUserManager'.

堆栈:

Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.CreateArgumentCallSites(Type serviceType, Type implementationType, CallSiteChain callSiteChain, ParameterInfo[] parameters, bool throwIfCallSiteNotFound) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.CreateConstructorCallSite(Type serviceType, Type implementationType, CallSiteChain callSiteChain) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.TryCreateExact(ServiceDescriptor descriptor, Type serviceType, CallSiteChain callSiteChain) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.TryCreateExact(Type serviceType, CallSiteChain callSiteChain) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.CreateCallSite(Type serviceType, CallSiteChain callSiteChain) Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.CreateServiceAccessor(Type serviceType) System.Collections.Concurrent.ConcurrentDictionary.GetOrAdd(TKey key, Func valueFactory) Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope) Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Type serviceType) Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType) Microsoft.AspNetCore.Identity.IdentityBuilder+<>c__DisplayClass22_0.b__0(IServiceProvider services) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitFactory(FactoryCallSite factoryCallSite, ServiceProviderEngineScope scope) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor.VisitCallSite(IServiceCallSite callSite, TArgument argument) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProviderEngineScope scope) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor.VisitCallSite(IServiceCallSite callSite, TArgument argument) Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine+<>c__DisplayClass1_0.b__0(ServiceProviderEngineScope scope) Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope) Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Type serviceType) Microsoft.Extensions.DependencyInjection.ActivatorUtilities.GetService(IServiceProvider sp, Type type, Type requiredBy, bool isDefaultParameterRequired) lambda_method(Closure , IServiceProvider , object[] ) Microsoft.AspNetCore.Mvc.Controllers.ControllerActivatorProvider+<>c__DisplayClass4_0.b__0(ControllerContext controllerContext) Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider+<>c__DisplayClass5_0.g__CreateController|0(ControllerContext controllerContext) Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted) Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync() Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter() Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context) Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted) Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync() Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync() Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext) Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context) Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

我的 UserStore 实现:

public class ApplicationUserStore : IUserStore<Employee>,
                     IUserClaimStore<Employee>,
                     IUserLoginStore<Employee>,
                     IUserRoleStore<Employee>,
                     IUserPasswordStore<Employee>,
                     IUserSecurityStampStore<Employee>
{
    #region Constructor signatures I tried for dependency injection
    public ApplicationUserStore(ApplicationDbContext context, IdentityErrorDescriber describer = null)
    {

    }
    public ApplicationUserStore(ApplicationDbContext context)
    {

    }
    public ApplicationUserStore()
    {

    }
    public ApplicationUserStore(DbContext context)
    {

    }
    #endregion
    ...

我的 UserManager 实现:

public class ApplicationUserManager : UserManager<Employee>
{
    public ApplicationUserManager(ApplicationUserStore store, IOptions<IdentityOptions> optionsAccessor, IPasswordHasher<Employee> passwordHasher, IEnumerable<IUserValidator<Employee>> userValidators, IEnumerable<IPasswordValidator<Employee>> passwordValidators, ILookupNormalizer keyNormalizer, IdentityErrorDescriber errors, IServiceProvider services, ILogger<UserManager<Employee>> logger)
        : base(store, optionsAccessor, passwordHasher, userValidators, passwordValidators, keyNormalizer, errors, services, logger)
    {
    }
}

我的 SignInManager 实现:

public class ApplicationSignInManager : SignInManager<Employee>
{
    public ApplicationSignInManager(ApplicationUserManager userManager, IHttpContextAccessor contextAccessor, IUserClaimsPrincipalFactory<Employee> claimsFactory, IOptions<IdentityOptions> optionsAccessor, ILogger<SignInManager<Employee>> logger, IAuthenticationSchemeProvider schemes)
        : base(userManager, contextAccessor, claimsFactory, optionsAccessor, logger, schemes)
    {
    }
}

并且，在 Startup.ConfigureServices 中:

        ...
        services.AddIdentityCore<Employee>()
            .AddEntityFrameworkStores<ApplicationDbContext>()
            .AddUserStore<ApplicationUserStore>()
            .AddUserManager<ApplicationUserManager>()
            .AddSignInManager<ApplicationSignInManager>()
            .AddDefaultTokenProviders();

        services.AddTransient<IUserStore<Employee>, ApplicationUserStore>();
        ...

我需要知道导致问题的原因、解决方法以及是否有 Asp.Net Core 2.1 依赖注入(inject)激活器签名的文档。

Answer 1

审查开源实现后 here , 和 here ，我想出了一个可能是什么问题的线索——我猜对了。 UserStore 需要通过 Startup.ConfigureServices 中的这一行进行注册:

    services.AddScoped<ApplicationUserStore>();

所以，我的 final方法是:

    ...
    services.AddIdentityCore<Employee>()
        .AddUserManager<ApplicationUserManager>()
        .AddSignInManager<ApplicationSignInManager>()
        .AddDefaultTokenProviders();

    services.AddScoped<IUserStore<Employee>, ApplicationUserStore>();
    services.AddScoped<ApplicationUserStore>();
    ...

即使没有:

    services.AddScoped<IUserStore<Employee>, ApplicationUserStore>();