解决在上下文中找不到 owin.Environment 项

Question

我发现很多线程都在讨论这个问题，但到目前为止，让它们中的任何一个工作都让我望而却步。

我一直在尝试关注ProDinner，以此来学习如何在我的应用中实现基于角色的身份验证。但我无法弄清楚我错过了什么。每次我尝试登录时都会得到 ​​p>

在上下文中找不到 owin.Environment 项

经过大量调试和搜索，我发现 Startup 类没有被调用。我试图通过单步执行 proDinner 代码来解决问题，以查看 Startup 是如何被调用和搜索的（很多！）。我的搜索导致我添加（尽管 proDinner 项目中都不存在）

<add key="owin:AutomaticAppStartup" value="Tjs.Startup, Tjs" />

然后

<add key="owin:AutomaticAppStartup" value="Tjs.Web.Admin.Startup, Tjs" />

下面我添加了我认为是相关代码的所有内容，但如果我遗漏任何内容，请告诉我。

AccountController 是 ProDinner 的复制粘贴，加上一个无参数构造函数，我无法弄清楚该参数是如何在 Prodinner 项目中传递的（这可能是问题吗？）

Tjs：解决方案名称

Tjs.Web.Admin：命名空间

Owin 包

<package id="Microsoft.Owin" version="3.0.1" targetFramework="net45" />
<package id="Microsoft.Owin.Host.SystemWeb" version="3.0.1" targetFramework="net45" />
<package id="Microsoft.Owin.Security" version="3.0.1" targetFramework="net45" />
<package id="Microsoft.Owin.Security.Cookies" version="3.0.1" targetFramework="net45" />
<package id="Microsoft.Owin.Security.OAuth" version="3.0.1" targetFramework="net45" />

项目的根目录

using Microsoft.Owin;
using Owin;

using Tjs.Web.Admin;
using Tjs.Web.Admin.App_Start;

[assembly: OwinStartup(typeof(Startup))]
namespace Tjs.Web.Admin
{
  public class Startup
  {
    public void Configuration(IAppBuilder app)
    {
        OwinConfig.ConfigureAuth(app);
    }
  }
}

App_Start

using Microsoft.AspNet.Identity;
using Microsoft.Owin;
using Microsoft.Owin.Security.Cookies;
using Owin;
namespace Tjs.Web.Admin.App_Start
{
  public static class OwinConfig
  {
    public static void ConfigureAuth(IAppBuilder app)
    {
        app.UseCookieAuthentication(new CookieAuthenticationOptions
        {
            AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
            LoginPath = new PathString("/Account/SignIn")
        });
    }
  }
}

帐户控制器

    private readonly IUserService userService;
    public AccountController()
    {

    }

    public AccountController(IUserService userService)
    {
        this.userService = userService;
    }

    private IAuthenticationManager Authentication
    {
        get
        {
            return HttpContext.GetOwinContext().Authentication;
        }
    }

    private void SignInOwin(string name, bool rememberMe, string role)
    {
        var identity = new ClaimsIdentity(new[] { new Claim(ClaimTypes.Name, name) },
            DefaultAuthenticationTypes.ApplicationCookie,
                ClaimTypes.Name, ClaimTypes.Role);

        //foreach (var role in roles)
        //{
        //    identity.AddClaim(new Claim(ClaimTypes.Role, role));
        //}
        identity.AddClaim(new Claim(ClaimTypes.Role, role));

        Authentication.SignIn(new AuthenticationProperties
        {
            IsPersistent = rememberMe
        }, identity);
    }

    public ActionResult SignIn()
    {
        return View(new SignIn { Email = "o", Password = "1" });
    }

    [HttpPost]
    public ActionResult SignIn(SignIn input)
    {
        if (!ModelState.IsValid)
        {
            input.Password = null;
            input.Email = null;
            return View(input);
        }

        Staff staff;

        //ACHTUNG: remove this in a real app
        if (input.Email == "o" && input.Password == "1")
        {
            staff = new Staff { Email = "o", Role = new Role { Description = "admin" } };
        }
        else
        {
            staff = userService.Get(input.Email, input.Password);
        }

        if (staff == null)
        {
            ModelState.AddModelError("", "Try Login: o and Password: 1");
            return View();
        }

        SignInOwin(staff.Email, input.Remember, staff.Role.Description);


        return RedirectToAction("index", "home");
    }

    public ActionResult SignOff()
    {
        Authentication.SignOut();
        return RedirectToAction("SignIn", "Account");
    }
}

失败了

private IAuthenticationManager Authentication
{
    get
    {
        return HttpContext.GetOwinContext().Authentication;
    }
}

Answer 1

将此添加到您的web.config <appSettings><add key="owin:AppStartup" value="[Namespace].Startup, [AssemblyName]" /></appSettings>

Answer 2

我已经添加到“web.config”中了

<modules runAllManagedModulesForAllRequests="true">

Answer 3

我遇到了同样的问题，我在 WebConfig 中添加了一个新密钥 owin:AutomaticAppStartup，以便自动加载 Startup 类。

<add key="owin:AppStartup" value="[Namespace].Startup,[AssemblyName]" />
<add key="owin:AutomaticAppStartup" value="true"/>