C# ASP.NET Core 2.2授权未授权

我正在编写一个简单的授权示例，使用声明，但授权未被授予

为了清楚起见，我使用的是ASP.NET Core 2.2.4

startup.cs配置为：

public void ConfigureServices(IServiceCollection services)
{
    services.AddMvc();
    ...
    services.AddIdentity<IdentityUser, IdentityRole>(option => { option.Password = new PasswordOptions { ... }; };
    services.ConfigureApplicationCookie(option => { option.LoginPath = "/logins/Index"; });

    services.AddAuthorization(option => 
    {
        option.AddPolicy("EditorOver18Policy", policy =>
        {
            policy.RequireClaim("Over18Claim");
        });
    });
}

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    app.UseAuthentication();
    app.UseMvc(routes =>
        { ... });
}

简单地说，当a运行它时，请确保我刚刚登录并因此获得了声明，我会收到一个拒绝访问错误（如果是葡萄牙语的话，很抱歉）：

---

我缺少什么？

要添加自定义声明，您可以实现自定义的

IUserClaimsPrincipalFactory

或使用

UserClaimsPrincipalFactory

作为基类：

public class ApplicationClaimsIdentityFactory : Microsoft.AspNetCore.Identity.UserClaimsPrincipalFactory<IdentityUser>
{
    UserManager<IdentityUser> _userManager;
    public ApplicationClaimsIdentityFactory(UserManager<IdentityUser> userManager,
        IOptions<IdentityOptions> optionsAccessor) : base(userManager, optionsAccessor)
    { }
    public async override Task<ClaimsPrincipal> CreateAsync(IdentityUser user)
    {
        var principal = await base.CreateAsync(user);

            ((ClaimsIdentity)principal.Identity).AddClaims(new[] {
            new Claim("Over18Claim", "true")
        });

        return principal;
    }
}

[Authorize (policy: "EditorOver18Policy")]
public IActionResult Upload()
{
    ...
}

public class ApplicationClaimsIdentityFactory : Microsoft.AspNetCore.Identity.UserClaimsPrincipalFactory<IdentityUser>
{
    UserManager<IdentityUser> _userManager;
    public ApplicationClaimsIdentityFactory(UserManager<IdentityUser> userManager,
        IOptions<IdentityOptions> optionsAccessor) : base(userManager, optionsAccessor)
    { }
    public async override Task<ClaimsPrincipal> CreateAsync(IdentityUser user)
    {
        var principal = await base.CreateAsync(user);

            ((ClaimsIdentity)principal.Identity).AddClaims(new[] {
            new Claim("Over18Claim", "true")
        });

        return principal;
    }
}

services.AddScoped<IUserClaimsPrincipalFactory<IdentityUser>, ApplicationClaimsIdentityFactory>();