Question

我正在尝试基于http://docs.identityserver.io/en/latest/quickstarts/8_aspnet_identity.html并使用https://github.com/IdentityServer/IdentityServer4/tree/master/samples/Quickstarts/8_AspNetIdentity中的代码作为模板来启动Identity Server实例，但是我无法获取种子数据。

每个示例应用程序都有我的program.cs和startup.cs。当我打电话

var userMgr = scope.ServiceProvider.GetRequiredService<UserManager<IdentityUser>>();

从SeedData.EnsureSeedData方法开始，

var services = new ServiceCollection();
            services.AddDbContext<ApplicationDbContext>(options => options.UseSqlServer(connectionString));

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

            using var serviceProvider = services.BuildServiceProvider();
            using var scope = serviceProvider.GetRequiredService<IServiceScopeFactory>().CreateScope();
            var context = scope.ServiceProvider.GetService<ApplicationDbContext>();
            context.Database.Migrate();

            var userMgr = scope.ServiceProvider.GetRequiredService<UserManager<IdentityUser>>();

我收到以下错误。

Unable to resolve service for type 'Microsoft.Extensions.Logging.ILogger`1[Microsoft.AspNetCore.Identity.UserManager`1[Microsoft.AspNetCore.Identity.IdentityUser]]' while attempting to activate 'Microsoft.AspNetCore.Identity.UserManager`1[Microsoft.AspNetCore.Identity.IdentityUser]'.

如何为ILogger<UserManager<IdentityUser>>>注册服务？

我觉得我缺少明显的东西，但看不到它是什么。

Answer 1

这是我使用用户管理器播种数据的方式

public static void Main(string[] args)
        {
            try
            {
                var host = BuildWebHost(args);
                using (var scope = host.Services.CreateScope())
                {
                    var services = scope.ServiceProvider;
                    SeedData.Initialize(services).Wait();
                }

                host.Run();
            }
}

在种子数据类中

private static async Task SeedUser(User user, ApplicationDbContext context, IServiceProvider serviceProvider,
            string[] roles)
        {
            var password = new PasswordHasher<User>();
            var hashed = password.HashPassword(user, "123456");
            user.PasswordHash = hashed;
            var userStore = new UserStore<User>(context);

            await userStore.CreateAsync(user);
            await EnsureRole(serviceProvider, user.Email, roles);
            await context.SaveChangesAsync();
        }

您可以查看我的完整代码here

让我知道您是否需要任何帮助。

aspnet.core使用UserManager <IdentityUser>

1 个答案: