尝试激活'AuthController'时无法解析类型'Microsoft.AspNetCore.Identity.UserManager`的服务

Question

我在登录控制器中收到此错误.

InvalidOperationException:尝试激活'Automobile.Server.Controllers.AuthController'时,无法解析类型'Microsoft.AspNetCore.Identity.UserManager`1 [Automobile.Models.Account]'的服务.

这是Auth Controller构造函数:

private SignInManager<Automobile.Models.Account> _signManager;
    private UserManager<Automobile.Models.Account> _userManager;

    public AuthController(UserManager<Models.Account> userManager,
                          SignInManager<Automobile.Models.Account> signManager)
    {
        this._userManager = userManager;
        this._signManager = signManager;
    }

这是在startup.cs中的ConfigureServices:

public void ConfigureServices(IServiceCollection services)
    {
        // Add framework services.
        services.AddApplicationInsightsTelemetry(Configuration);
        services.Configure<AppConfig>(Configuration.GetSection("AppSettings"));

        //var provider = HttpContext.ApplicationServices;
        //var someService = provider.GetService(typeof(ISomeService));


        services.AddDbContext<Providers.Database.EFProvider.DataContext>(options => options
            .UseSqlServer(Configuration.GetConnectionString("DefaultConnection"),
                 b => b.MigrationsAssembly("Automobile.Server")
            ));


        services.AddIdentity<IdentityUser, IdentityRole>(options =>
        {
            options.User.RequireUniqueEmail = false;
        })
        .AddEntityFrameworkStores<Providers.Database.EFProvider.DataContext>()
        .AddDefaultTokenProviders(); 
        //services.AddScoped<SignInManager<Automobile.Models.Account>, SignInManager<Automobile.Models.Account>>();
        //services.AddScoped<UserManager<Automobile.Models.Account>, UserManager<Automobile.Models.Account>>();

        services.AddMvc();
        App.Service = services.BuildServiceProvider();

        // Adds a default in-memory implementation of IDistributedCache.
        services.AddDistributedMemoryCache();

        services.AddSession(options =>
        {
            // Set a short timeout for easy testing.
            options.IdleTimeout = TimeSpan.FromSeconds(10);
            options.CookieHttpOnly = true;
        });

    }

Answer 1

您需要在SignInManager,UserManager和services.AddIdentity中使用相同的用户数据模型.如果您使用自己的自定义应用程序角色模型类,则相同的主体是正确的.

所以,改变

services.AddIdentity<IdentityUser, IdentityRole>(options =>
    {
        options.User.RequireUniqueEmail = false;
    })
    .AddEntityFrameworkStores<Providers.Database.EFProvider.DataContext>()
    .AddDefaultTokenProviders();

至

services.AddIdentity<Automobile.Models.Account, IdentityRole>(options =>
    {
        options.User.RequireUniqueEmail = false;
    })
    .AddEntityFrameworkStores<Providers.Database.EFProvider.DataContext>()
    .AddDefaultTokenProviders();

Answer 2

只是为了清楚答案:

如果您ApplicationUser在startup.cs中使用该类:services.AddIdentity<ApplicationUser, IdentityRole>()

那么在注入时你必须在你的控制器中使用相同的类:

public AccountController(UserManager<ApplicationUser> userManager)

如果您使用其他类,例如:

public AccountController(UserManager<IdentityUser> userManager)

那么你会得到这个错误:

InvalidOperationException:无法解析类型'Microsoft.AspNetCore.Identity.UserManager`1 [IdentityUser]'的服务

因为你ApplicationUser在启动时使用过,IdentityUser所以这种类型没有在注射系统中注册.

Answer 3

您可以在Startup类中的ConfigureServices中分别设置IdentityUser和IdentityRole，如下所示：

services.AddDefaultIdentity<IdentityUser>()
    .AddRoles<IdentityRole>()
    .AddEntityFrameworkStores<ApplicationDbContext>();

或者

您可以直接配置到 AddIdentity：

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

Answer 4

这与原始帖子有点无关，但是由于Google将您带到这里...如果您遇到此错误并正在使用：

services.AddIdentityCore<YourAppUser>()

然后，您将需要手动注册AddIdentity所做的工作，可以在这里找到：https : //github.com/aspnet/Identity/blob/feedcb5c53444f716ef5121d3add56e11c7b71e5/src/Identity/IdentityServiceCollectionExtensions.cs#L79

        services.AddHttpContextAccessor();
        // Identity services
        services.TryAddScoped<IUserValidator<TUser>, UserValidator<TUser>>();
        services.TryAddScoped<IPasswordValidator<TUser>, PasswordValidator<TUser>>();
        services.TryAddScoped<IPasswordHasher<TUser>, PasswordHasher<TUser>>();
        services.TryAddScoped<ILookupNormalizer, UpperInvariantLookupNormalizer>();
        services.TryAddScoped<IRoleValidator<TRole>, RoleValidator<TRole>>();
        // No interface for the error describer so we can add errors without rev'ing the interface
        services.TryAddScoped<IdentityErrorDescriber>();
        services.TryAddScoped<ISecurityStampValidator, SecurityStampValidator<TUser>>();
        services.TryAddScoped<ITwoFactorSecurityStampValidator, TwoFactorSecurityStampValidator<TUser>>();
        services.TryAddScoped<IUserClaimsPrincipalFactory<TUser>, UserClaimsPrincipalFactory<TUser, TRole>>();
        services.TryAddScoped<UserManager<TUser>>();
        services.TryAddScoped<SignInManager<TUser>>();
        services.TryAddScoped<RoleManager<TRole>>();

您需要替换TUser并替换TRole为这些实现，或者使用默认的实现IdentityUser，IdentityRole

Answer 5

不要忘记在 ConfigureServices 中添加角色管理器

services.AddDefaultIdentity<IdentityUser>()
    .AddRoles<IdentityRole>() // <--------
    .AddDefaultUI(UIFramework.Bootstrap4)
    .AddEntityFrameworkStores<ApplicationDbContext>();