如何在WebApi中注入webapi AccountController [英] How to inject webapi AccountController in WebApi

问题描述

我有默认的构造函数和构造函数，其参数如下:

I have default constuctor and constructor with params like here:

public class AccountController : ApiController
{
    private const string LocalLoginProvider = "Local";
    private ApplicationUserManager _userManager;
    public ISecureDataFormat<AuthenticationTicket> AccessTokenFormat { get; private set; }
    [Dependency]
    public IRepository Repository{ get; private set; }

    public AccountController()
    {
    }

    public AccountController(ApplicationUserManager userManager, ISecureDataFormat<AuthenticationTicket> accessTokenFormat)
    {
        _userManager = userManager;
        AccessTokenFormat = accessTokenFormat;
    }
}

这里是我的统一配置:

.RegisterType<DbContext, ApplicationDbContext>(new HierarchicalLifetimeManager())
.RegisterType<UserManager<ApplicationUser, int>, ApplicationUserManager>()                
.RegisterType<ApplicationDbContext>(new HierarchicalLifetimeManager())
.RegisterType<ApplicationUserManager>()

.RegisterType<ISecureDataFormat<AuthenticationTicket>, SecureDataFormat<AuthenticationTicket>>()
.RegisterType<ITextEncoder, Base64UrlTextEncoder>()
.RegisterType<IDataSerializer<AuthenticationTicket>, TicketSerializer>()
//.RegisterType<IDataProtector>(() => new DpapiDataProtectionProvider().Create("ASP.NET Identity"))

.RegisterType<IUserStore<ApplicationUser, int>, CustomUserStore>(new InjectionConstructor(typeof(ApplicationDbContext)))
.RegisterType<IAuthenticationManager>(new InjectionFactory(o => HttpContext.Current.GetOwinContext().Authentication))
.RegisterType<IOwinContext>(new InjectionFactory(o => HttpContext.Current.GetOwinContext()))
.RegisterType<IRepository, Repository>();

但是事实是，总是会调用默认构造函数. 我读了这篇文章博客，但他们不谈论如何使用构造函数具有参数AccountController(ApplicationUserManager userManager, ISecureDataFormat<AuthenticationTicket> accessTokenFormat)

But the thing is that default constructor is always getting called. I read taht article blog but they not talking how to resolve such case with constructor havaving params AccountController(ApplicationUserManager userManager, ISecureDataFormat<AuthenticationTicket> accessTokenFormat)

如果我要取消无参数构造函数，则会收到错误消息:"An error occurred when trying to create a controller of type 'AccountController'. Make sure that the controller has a parameterless public constructor.", 有没有人可以帮助您?

If I am taking off parameterless constructor I am getting an error: "An error occurred when trying to create a controller of type 'AccountController'. Make sure that the controller has a parameterless public constructor.", Is there anyone can help?

我也只有普通的ApiController，我也没有注射:

Also I have just normal ApiController and i is not getting injected as well:

public class MyController : ApiController
{
    [Dependency]
    public IRepository Repository { get; set; }

    public IHttpActionResult Get()
    {
        var test = Repository.GetSomething(); // Repository is null here always
    }
}

更新1 现在基于@IgorPashchuk建议，现在正在注入MyController. 但是AccoutController不是.我删除了默认构造函数，但仍然收到错误.

UPDATE 1 Based on @IgorPashchuk suggeston now MyController is getting injected now. But AccoutController is not. I am removed the default constructor but still getting the error.

更新2 我通过删除第二个参数来更改带有参数的构造函数:

UPDATE 2 I alter the constructor with params by taking out the second param:

public class AccountController : ApiController
{
    private const string LocalLoginProvider = "Local";
    private ApplicationUserManager _userManager;

    [Dependency]
    public IRepository Repository{ get; private set; }

    public AccountController(ApplicationUserManager userManager)
    {
        _userManager = userManager;
    }
}

这样，我就可以正常工作了.据我了解，这意味着Unity无法构造类型ISecureDataFormat<AuthenticationTicket>.我发布了有关此问题的另一个问题如何构造ISecureDataFormat< AuthenticationTicket>团结一致

So this way I've got the thing is working. Is I understand that is means that Unity wasnt able to construct type ISecureDataFormat<AuthenticationTicket>. I post another question about this issue How to construct ISecureDataFormat<AuthenticationTicket> with unity

推荐答案

您应删除无参数构造函数.

You should remove the parameterless constructor.

接下来，您需要配置一个自定义的依赖解析器，该解析器将基本上包装您的Unity容器.参见 http://www.asp.net/web-api/overview/高级/依赖注入

Next, you need to configure a custom dependency resolver, which will basically wrap your Unity container. See http://www.asp.net/web-api/overview/advanced/dependency-injection

之后，请确保您注册了所有类型.例如，我没有看到ApplicationUserManager的注册.您正在注册UserManager<ApplicationUser, int>而不是ApplicationUserManager，这是IoC容器将尝试解决的问题.

After that, make sure that you register all your types. For example, I don't see a registration for ApplicationUserManager. You are registering UserManager<ApplicationUser, int> but not ApplicationUserManager, which is what the IoC container will attempt to resolve.

这篇关于如何在WebApi中注入webapi AccountController的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！