c# - ASP.NET Core 3.0 中获取当前经过身份验证的用户名的方法是什么？

Question

我正在研究最新的 ASP.NET Core 3.0 Angular 模板。我需要知道的是我们如何在 ActionFilterAttribute 中获得经过身份验证的用户和用户名.
ClaimTypes.NameIdentifier返回当前用户 ID，和 ClaimTypes.Name返回为空的用户名。

这是我的代码:



哪里getUser有一个 UserId的 d15f997a-6f65-4eb2-aecb-8b525361ae50
我还在 Startup 类中注册了 IHttpContextAccessor，如下所示:

public IServiceProvider ConfigureServices(IServiceCollection services)
{
        services.AddDbContext<ApplicationDbContext>(options =>
            options.UseSqlServer(
                Configuration.GetConnectionString("DefaultConnection")));

        services.AddDefaultIdentity<ApplicationUser>()
            .AddEntityFrameworkStores<ApplicationDbContext>();

        services.AddIdentityServer()
            .AddApiAuthorization<ApplicationUser, ApplicationDbContext>();

        services.AddAuthentication()
            .AddIdentityServerJwt();

        //Database Setup
        services.AddDbContext<HashooDBContext>(Configuration.GetConnectionString("DefaultConnection"));

        services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();

        services.AddControllersWithViews();
        services.AddRazorPages();
        // In production, the Angular files will be served from this directory
        services.AddSpaStaticFiles(configuration =>
        {
            configuration.RootPath = "ClientApp/dist";
        });

        return ContainerSetup.InitializeWeb(Assembly.GetExecutingAssembly(), services);
}

Controller .cs:

[Authorize]
[ApiController]
[Route("api/[controller]/{companycode}")]
public class DashboardTransactionsController : ControllerBase
{
    [CustomAuthorizationFilter("companycode")]
    public string Get()
    {
        return "Welcome";
    }
}

请让我知道我做错了什么？

Answer 1

您可以使用 IHttpContextAccessor

private readonly IHttpContextAccessor _httpContextAccessor;

public UserService(
    IHttpContextAccessor httpContextAccessor)
{
  _httpContextAccessor = httpContextAccessor;       
}

并获取用户名，您可以使用

_httpContextAccessor?.HttpContext?.User?.Identity?.Name;

或者

 _httpContextAccessor.HttpContext.User.FindFirstValue(ClaimTypes.NameIdentifier);

然后在您的 Startup.cs 中注册

public void ConfigureServices(IServiceCollection services)
{
    services.TryAddSingleton<IHttpContextAccessor, HttpContextAccessor>();
}