我如何注入身份班，Ninject？ [英] How do I inject Identity classes with Ninject?

问题描述

我想在一个类中使用的UserManager，但我得到这个错误：

 错误激活IUserStore {} ApplicationUser
没有匹配的绑定是可用的，并且类型不是自我绑定。
 

我使用的是默认的Startup.cs，其中每个请求设置一个实例：

  app.CreatePerOwinContext（ApplicationDbContext.Create）;
app.CreatePerOwinContext＆LT; ApplicationUserManager＆GT;（ApplicationUserManager.Create）;
 

我能够得到ApplicationDbContext实例，我相信通过Owin是越来越注射（是真的吗？）

 公共类GenericRepository＆LT; T＆GT; ：IGenericRepository＆LT; T＆GT;其中T：类
{
    私人ApplicationDbContext语境;    公共GenericRepository（ApplicationDbContext上下文）
    {
        this.context =背景;
    }
}
 

但我不能做的UserManager相同的（它抛出之前所示的错误）：

 公共类AnunciosService：IAnunciosService
{
    私人IGenericRepository＆LT; Anuncio＆GT; _repo;
    私人ApplicationUserManager _userManager;    公共AnunciosService（IRepositorioGenerico＆LT; Anuncio＆GT;回购，ApplicationUserManager的UserManager）
    {
        _repo =回购;
        _userManager =的UserManager;
    }
}
 

控制器使用的UserManager是这样的：

 公共ApplicationUserManager的UserManager
    {
        得到
        {
            返回_userManager？ 。HttpContext.GetOwinContext（）GetUserManager＆LT; ApplicationUserManager＆GT;（）;
        }
        私订
        {
            _userManager =价值;
        }
    }
 

我使用ninject注入我的其他类，但我怎么注入的UserManager与它的依赖和避免使用它一样，在我的控制器？

解决方案

我注入像这样

<$p$p><$c$c>kernel.Bind<IUserStore<ApplicationUser>>().To<UserStore<ApplicationUser>>();
kernel.Bind＆LT;＆的UserManager LT; ApplicationUser＆GT;＆GT;（）ToSelf（）。

而现在它的工作，因为它应该，但是，我不知道这是否会导致通过的UserManager的多个实例被引用或不符合实体的问题。

I'm trying to use UserManager in a class, but I'm getting this error:

Error activating IUserStore{ApplicationUser}
No matching bindings are available, and the type is not self-bindable.

I'm using the default Startup.cs, which sets a single instance per request:

app.CreatePerOwinContext(ApplicationDbContext.Create);
app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);

I'm able to get the ApplicationDbContext instance, which I believe is getting injected by Owin (Is that true?):

public class GenericRepository<T> : IGenericRepository<T> where T : class
{
    private ApplicationDbContext context;

    public GenericRepository(ApplicationDbContext context)
    {
        this.context = context;
    }
}

But I can't do the same with UserManager (It throws the error shown before):

public class AnunciosService : IAnunciosService
{
    private IGenericRepository<Anuncio> _repo;
    private ApplicationUserManager _userManager;

    public AnunciosService(IRepositorioGenerico<Anuncio> repo, ApplicationUserManager userManager)
    {
        _repo = repo;
        _userManager = userManager;
    }
}

The controller uses the UserManager like this:

public ApplicationUserManager UserManager
    {
        get
        {
            return _userManager ?? HttpContext.GetOwinContext().GetUserManager<ApplicationUserManager>();
        }
        private set
        {
            _userManager = value;
        }
    }

I'm using ninject to inject my other classes, but how do I inject the UserManager with it's dependencies and avoid using it like that in my controllers?

解决方案

I injected It like this

kernel.Bind<IUserStore<ApplicationUser>>().To<UserStore<ApplicationUser>>();
kernel.Bind<UserManager<ApplicationUser>>().ToSelf();

And now It's working as it should, however, I'm not sure whether this will cause problems with entities being referenced by multiple instances of UserManager or not.

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