Question

我已经搜索了所有关于SO的问题，但似乎无法弄清楚我在这里做错了什么。

我有以下UserService

   public class UserService : BaseService
    {
        private readonly Func<UserManager<ApplicationUser>> _userManagerFactory;
        private readonly Func<RoleManager<IdentityRole>> _roleManagerFactory;

        public UserService(Func<UserManager<ApplicationUser>> userManagerFactory, Func<RoleManager<IdentityRole>> roleManagerFactory)
        {
            _userManagerFactory = userManagerFactory;
            _roleManagerFactory = roleManagerFactory;
        }

并在我的帐户控制器中我注入如下;

public class AccountsController : ApiController
{
    [Dependency]
    public UserService UserService { get; set; }

现在在我的UnityConfig.cs中，我将DI设置如下;

var userInjectionConstructor = new InjectionConstructor(new MyDataContext());
            //container.RegisterType<IUserStore<ApplicationUser>, UserStore<ApplicationUser>>(userInjectionConstructor);
            container.RegisterType<UserManager<ApplicationUser>, ApplicationUserManager>();
            container.RegisterType<IRoleStore<IdentityRole, string>, RoleStore<IdentityRole>>(userInjectionConstructor);

ApplicationUserManager如下所示;

public class ApplicationUserManager : UserManager<ApplicationUser>
{
    public ApplicationUserManager(IUserStore<ApplicationUser> store)
        : base(store)
    {
    }

    public static ApplicationUserManager Create(IdentityFactoryOptions<ApplicationUserManager> options, IOwinContext context)
    {
        var container = (IUnityContainer)Startup.HttpConfiguration.DependencyResolver.GetService(typeof(IUnityContainer));
        var manager = new ApplicationUserManager(new UserStore<ApplicationUser>(new MyDataContext()));
        // Configure validation logic for usernames
        manager.UserValidator = new UserValidator<ApplicationUser>(manager)
        {
            AllowOnlyAlphanumericUserNames = false,
            RequireUniqueEmail = true
        };
        // Configure validation logic for passwords
        manager.PasswordValidator = new PasswordValidator
        {
            RequiredLength = 6,
            RequireNonLetterOrDigit = true,
            RequireDigit = true,
            RequireLowercase = true,
            RequireUppercase = true,
        };
        var dataProtectionProvider = options.DataProtectionProvider;
        if (dataProtectionProvider != null)
        {
            manager.UserTokenProvider = new DataProtectorTokenProvider<ApplicationUser>(dataProtectionProvider.Create("ASP.NET Identity"));
        }
        return manager;
    }
}

这会编译并运行，但是当我尝试解析DI时会出现错误;

依赖项的解析失败，类型=＆＃34; Microsoft.AspNet.Identity.UserManager 1[CCS.Core.ApplicationUser]", name = "(none)". Exception occurred while: while resolving. Exception is: InvalidOperationException - The current type, Microsoft.AspNet.Identity.IUserStore 1 [CCS.Core.ApplicationUser]是一个无法构造的接口。你错过了类型映射吗？

现在引发了这个问题，因为如果我使用以下内容;

var userInjectionConstructor = new InjectionConstructor(new MyDataContext());
container.RegisterType<IUserStore<ApplicationUser>, UserStore<ApplicationUser>>(userInjectionConstructor);

然后DI工作，但是没有ApplicationUserManager设置（令牌提供程序等）。

现在ApplicationUserManager.Create调用是静态的，所以我假设我必须将它移动到DI的构造函数中？

任何人都可以解释我在这里错了什么以及如何解决？

Answer 1

还有一个问题就是让用户拥有角色名称，无论如何在尝试解决这个问题时我偶然发现了这个博客，它完全解释了如何注入http://tech.trailmax.info/2014/09/aspnet-identity-and-ioc-container-registration/。

祝你好运！

带身份的Microsoft Unity DI

1 个答案: