AspNet Core3身份配置

Question

我正在尝试遵循AspNet Core 1.1的一些过时教程项目（当我使用Visual Studio 2019预览2.0并安装了.net core v3.0.0-preview9时）

我已经有一个包含几个由EntityFrameworkCore3.00-preview创建的表的数据库，它工作正常。

现在，我正在尝试将autorization添加到项目中，所以我从IdentityDbContext派生我的数据库上下文类，

public class MyDbContext : IdentityDbContext

代替

public class WorldContext : DbContext

进行添加迁移和更新数据库，并在数据库中看到许多新表

此时我的应用程序可以启动，但是在我添加一行代码的那一刻

services.AddIdentity<IdentityUser, IdentityRole>();

到Startup.cs中的ConfigurationServices

应用程序崩溃并显示以下消息：

System.AggregateException HResult = 0x80131500消息=无法构建某些服务（验证服务描述符'ServiceType：Microsoft.AspNetCore.Identity.ISecurityStampValidator寿命：范围内的实现类型：Microsoft.AspNetCore.Identity.SecurityStampValidator 1[Microsoft.AspNetCore.Identity.IdentityUser]': Unable to resolve service for type 'Microsoft.AspNetCore.Identity.IUserStore尝试激活“ Microsoft.AspNetCore.Identity.UserManager 1[Microsoft.AspNetCore.Identity.IdentityUser]'.) (Error while validating the service descriptor 'ServiceType: Microsoft.AspNetCore.Identity.ITwoFactorSecurityStampValidator Lifetime: Scoped ImplementationType: Microsoft.AspNetCore.Identity.TwoFactorSecurityStampValidator ]”时， 1[Microsoft.AspNetCore.Identity.IdentityUser]': Unable to resolve service for type 'Microsoft.AspNetCore.Identity.IUserStore 1 [Microsoft.AspNetCore.Identity.IdentityUser]”的1[Microsoft.AspNetCore.Identity.IdentityUser]': Unable to resolve service for type 'Microsoft.AspNetCore.Identity.IUserStore 1[Microsoft.AspNetCore.Identity.IdentityUser]'.) (Error while validating the service descriptor 'ServiceType: Microsoft.AspNetCore.Identity.ITwoFactorSecurityStampValidator Lifetime: Scoped ImplementationType: Microsoft.AspNetCore.Identity.TwoFactorSecurityStampValidator 1 [Microsoft.AspNetCore.Identity.IdentityUser]'：无法访问1[Microsoft.AspNetCore.Identity.IdentityUser]' while attempting to activate 'Microsoft.AspNetCore.Identity.UserManager解析类型为“ Microsoft.AspNetCore.Identity.IUserStore 1[Microsoft.AspNetCore.Identity.IdentityUser]' while attempting to activate 'Microsoft.AspNetCore.Identity.UserManager 1[Microsoft.AspNetCore.Identity.IdentityUser]' while attempting to activate 'Microsoft.AspNetCore.Identity.UserManager 1 [Microsoft.AspNetCore.Identity.IdentityUser]”。）（验证服务描述符“ ServiceType：Microsoft.AspNetCore.Identity.IUserClaimsPrincipalFactory 1[Microsoft.AspNetCore.Identity.IdentityUser] Lifetime: Scoped ImplementationType: Microsoft.AspNetCore.Identity.UserClaimsPrincipalFactory 2 [Microsoft.AspNetCore.Identity.IdentityUser，Microsoft.AspNetCore.Identity.IdentityRole]'：无法解析类型为“ Microsoft.AspNetCore.Identity.IUserStore 1[Microsoft.AspNetCore.Identity.IdentityUser]' while attempting to activate 'Microsoft.AspNetCore.Identity.UserManager ”的服务1[Microsoft.AspNetCore.Identity.IdentityUser]' while attempting to activate 'Microsoft.AspNetCore.Identity.UserManager 1 [Microsoft.AspNetCore.Identity.IdentityUser]”时。）（验证服务描述符“ ServiceType：Microsoft.AspNetCore.Identity.UserManager”时出错。 1[Microsoft.AspNetCore.Identity.IdentityUser] Lifetime: Scoped ImplementationType: Microsoft.AspNetCore.Identity.UserManager 1 [Microsoft.AspNetCore.Identity.IdentityUser]'：无法解析 1[Microsoft.AspNetCore.Identity.IdentityUser]' while attempting to activate 'Microsoft.AspNetCore.Identity.UserManager 1 [Microsoft.AspNetCore.Identity.IdentityUser]”时，类型1[Microsoft.AspNetCore.Identity.IdentityUser]' while attempting to activate 'Microsoft.AspNetCore.Identity.UserManager 1 [Microsoft.AspNetCore.Identity.IdentityUser]”的服务。验证服务描述符“ ServiceType：Microsoft.AspNetCore.Identity.SignInManager 1[Microsoft.AspNetCore.Identity.IdentityUser] Lifetime: Scoped ImplementationType: Microsoft.AspNetCore.Identity.SignInManager 1 [Microsoft.AspNetCore.Identity.IdentityUser]”：无法1[Microsoft.AspNetCore.Identity.IdentityUser]' while attempting to activate 'Microsoft.AspNetCore.Identity.UserManager 1 [Microsoft.AspNetCore.Identity.IdentityUser]”时，解析类型1[Microsoft.AspNetCore.Identity.IdentityUser]' while attempting to activate 'Microsoft.AspNetCore.Identity.UserManager 1 [Microsoft.AspNetCore.Identity.IdentityUser]”的服务。）（错误验证服务描述符'ServiceType：Microsoft.AspNetCore.Identity.RoleManager 1[Microsoft.AspNetCore.Identity.IdentityRole] Lifetime: Scoped ImplementationType: Microsoft.AspNetCore.Identity.RoleManager 1 [Microsoft.AspNetC ore.Identity.IdentityRole]'： 1[Microsoft.AspNetCore.Identity.IdentityRole]' while attempting to activate 'Microsoft.AspNetCore.Identity.RoleManager 1 [Microsoft.AspNetCore]时，无法解析类型为'Microsoft.AspNetCore.Identity.IRoleStore 1[Microsoft.AspNetCore.Identity.IdentityRole]' while attempting to activate 'Microsoft.AspNetCore.Identity.RoleManager服务.Identity.IdentityRole]'。）源= Microsoft.Extensions.DependencyInjection StackTrace：在Microsoft.Extensions.DependencyInjection.ServiceProvider..ctor（IEnumerable 1 serviceDescriptors, ServiceProviderOptions options) at Microsoft.Extensions.DependencyInjection.ServiceCollectionContainerBuilderExtensions.BuildServiceProvider(IServiceCollection services, ServiceProviderOptions options) at Microsoft.Extensions.DependencyInjection.DefaultServiceProviderFactory.CreateServiceProvider(IServiceCollection containerBuilder) at Microsoft.Extensions.Hosting.Internal.ServiceFactoryAdapter .Hosting.HostBuilder.Build（） 在C：\\ Users \\ mli2805 \\ source \\ repos \\ TheWorld \\ TheWorld \\ Program.cs：line 10中的TheWorld.Program.Main（String [] args）

内部异常1：InvalidOperationException：验证服务描述符'ServiceType：Microsoft.AspNetCore.Identity.ISecurityStampValidator生存期：范围化的实现类型：Microsoft.AspNetCore.Identity.SecurityStampValidator 1[Microsoft.AspNetCore.Identity.IdentityUser]': Unable to resolve service for type 'Microsoft.AspNetCore.Identity.IUserStore尝试激活“ Microsoft.AspNetCore.Identity.UserManager 1[Microsoft.AspNetCore.Identity.IdentityUser]': Unable to resolve service for type 'Microsoft.AspNetCore.Identity.IUserStore 1 [Microsoft.AspNetCore.Identity.IdentityUser]时1[Microsoft.AspNetCore.Identity.IdentityUser]': Unable to resolve service for type 'Microsoft.AspNetCore.Identity.IUserStore 1 [Microsoft.AspNetCore.Identity.IdentityUser]”。

内部异常2：InvalidOperationException： 1[Microsoft.AspNetCore.Identity.IdentityUser]' while attempting to activate 'Microsoft.AspNetCore.Identity.UserManager 1 1[Microsoft.AspNetCore.Identity.IdentityUser]' while attempting to activate 'Microsoft.AspNetCore.Identity.UserManager无法解析类型为“ Microsoft.AspNetCore.Identity.IUserStore 1[Microsoft.AspNetCore.Identity.IdentityUser]' while attempting to activate 'Microsoft.AspNetCore.Identity.UserManager ”的服务.IdentityUser]”。

如果我实现public class MyUserStore : IUserStore<IdentityUser>

并添加行services.AddScoped<IUserStore<IdentityUser>, MyUserStore>();

到ConfigurationServices，我收到有关以下内容的下一个错误

无法解析类型为'Microsoft.AspNetCore.Identity.IRoleStore的服务

依此类推，尽管在本教程中，所有这些接口的实现都没有。 在我看来，我在配置服务中做错了什么？

Answer 1

您需要添加AddEntityFrameworkStores<TContext>() ：

services.AddIdentity<IdentityUser, IdentityRole>()
    .AddEntityFrameworkStores<WorldContext>();

FWIW，ASP.NET Core 1.1并非“有点过时”。 引用该版本的文档已经过时，几乎没有用。 2.X发生了很大变化，而3.X发生了很大变化。 您应该找到其他文章/教程。