C# 控制器（asp web api）中的HttpContext（User.Identity）不工作

我在正确使用HttpContext.Current.User.Identity时遇到一些问题。从控制器构造函数来看，这不起作用，我必须将其实现到某个方法中。看看这个例子

    public class SomeControler : ApiController
    {
        private UserData userData;
        
        // NOT WORKING
        public ChartsController(
            RegisteredUserData registeredUserData,
            NotLoggedInUserData NotLoggedInUserData
        {
            var isAuthenticated = HttpContext.Current.User.Identity.IsAuthenticated;

            this.userData = isAuthenticated
                ? (IUserData)registeredUserData
                : (IUserData)NotLoggedInUserData;
        }
        
        // WORKING
        public SomeMethod(
            RegisteredUserData registeredUserData,
            NotLoggedInUserData NotLoggedInUserData
        {
            var isAuthenticated = HttpContext.Current.User.Identity.IsAuthenticated;

            this.userData = isAuthenticated
                ? (IUserData)registeredUserData
                : (IUserData)NotLoggedInUserData;
        }
    }

我怎样才能解决这个问题？我花了很多时间在网上寻找答案，但我没有得到这个答案

问候

编辑 我找到了答案。这是个好办法吗

 public class SomeControler : ApiController
{
    private RegisteredUserData registeredUserData;
    private NotLoggedInUserData notLoggedInUserData;
    private UserData userData 
    {
      get
      {
        if (HttpContext.Current.User.Identity.IsAuthenticated)
        {
          return registeredUserData;
        }
        return notLoggedInUserData;
      }
    }

    public ChartsController(
        RegisteredUserData registeredUserData,
        NotLoggedInUserData notLoggedInUserData
    {
       this.registeredUserData = registeredUserData;
       this.notLoggedInUserData = notLoggedInUserData;
    }

}

---

首先，请求和

HttpContext

在控制器的构造中还不可用，因为在请求流中控制器是在哪里初始化的。您必须在一个操作中访问它，到那时，请求和上下文将完全实现

接下来，不要将控制器耦合到

HttpContext

。这使得您的代码难以测试和维护

在服务抽象中提取所需的信息

public interface IUserDataAccessor {
    IUserData UserData { get; }
}

public class UserDataAccessor : IUserDataAccessor {
    private readonly RegisteredUserData registeredUserData;
    private readonly NotLoggedInUserData notLoggedInUserData;

    public UserDataAccessor(
        RegisteredUserData registeredUserData,
        NotLoggedInUserData notLoggedInUserData) {
        this.registeredUserData = registeredUserData;
        this.notLoggedInUserData = notLoggedInUserData;
    }    

    public IUserData UserData {
        get {
            if (HttpContext.Current?.User?.Identity?.IsAuthenticated) {
                return registeredUserData;
            }
            return notLoggedInUserData;
        }
    }
}

public class ChartsController : ApiController {
    private readonly IUserDataAccessor accessor;

    public ChartsController(IUserDataAccessor accessor) {
        this.accessor = accessor;
    }

    [HttpGet]
    public IHttpActionResult SomeAction() {
        var userData = accessor.UserData;
        //...do something associated with user data
        return OK();
    }
}

这允许控制器保持精简，只依赖于抽象

public interface IUserDataAccessor {
    IUserData UserData { get; }
}

public class UserDataAccessor : IUserDataAccessor {
    private readonly RegisteredUserData registeredUserData;
    private readonly NotLoggedInUserData notLoggedInUserData;

    public UserDataAccessor(
        RegisteredUserData registeredUserData,
        NotLoggedInUserData notLoggedInUserData) {
        this.registeredUserData = registeredUserData;
        this.notLoggedInUserData = notLoggedInUserData;
    }    

    public IUserData UserData {
        get {
            if (HttpContext.Current?.User?.Identity?.IsAuthenticated) {
                return registeredUserData;
            }
            return notLoggedInUserData;
        }
    }
}

public class ChartsController : ApiController {
    private readonly IUserDataAccessor accessor;

    public ChartsController(IUserDataAccessor accessor) {
        this.accessor = accessor;
    }

    [HttpGet]
    public IHttpActionResult SomeAction() {
        var userData = accessor.UserData;
        //...do something associated with user data
        return OK();
    }
}

---

最后，确保抽象和它的实现已在组合根目录中的依赖项容器中注册。

//不工作

为我们提供了更多上下文。你说的不工作是什么意思？发生了什么？是否引发异常？还有什么吗？它在构造函数中总是未注册/未验证。您有更好的解决方案将经过身份验证的用户注入控制器构造函数吗？@TejasPatel我没有访问构造函数中的用户。正如你已经知道的那样，我在那个时候不在。它将仅在操作中可用。我在构造函数中注入访问器，它们通过操作本身获取用户。是-有没有办法在构造函数中注入经过身份验证的用户标识，因为我想创建存储库对象，并在构造函数中而不是在每个操作中将当前用户传递给它。否。你不理解。访问标识仅在操作的上下文中可用。不直接。因此，您可以在存储库中插入访问器，但您将从一个操作中调用存储库成员，该操作将在该操作中设置标识