Question

我试图从我的Web API中的控制器之外的Context中获取当前用户。我使用OpenIddict对用户进行身份验证，因此授权是由令牌进行的。

我在我的Startup.cs中注册了HttpContextAcessor作为单例：

function fish(i) {

    this.f = $('#hlogo');
    this.d = '-=1px';

    this.animateFish = function() {
        $(this.f).animate({
            "left": this.d
        }, 10, "linear", this.checkCollision.call(this));
    }

    this.checkCollision = function() {
        this.animateFish();
        //TypeError: this.animateFish is not a function
    }
}

var f1 = new fish(1);
f1.animateFish();

之后，我在我的集线器中注入了HttpContexrAcessor，如下所示：

services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();

问题是_context.User.Identity.Name始终为null。

有没有办法做到这一点？

Answer 1

在使用.Net Core 2.0的情况下，需要在控制器外部获取用户ID，在Application Service中，我执行了以下操作：

在 Startup.cs 中，我在 ConfigureServices

下添加了此行

services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();

我创建了以下课程

public class UserResolverService
{
    private readonly IHttpContextAccessor _httpContext;
    private readonly UserManager<ApplicationUser> _userManager;

    public UserResolverService(IHttpContextAccessor httpContext, UserManager<ApplicationUser> userManager)
    {
        _httpContext = httpContext;
        _userManager = userManager;
    }

    public string GetUserId()
    {
        var userId = _userManager.GetUserId(_httpContext.HttpContext.User);
        return userId;
    }
}

在我的 Application Service 类中，我调用了 UserResolverService

public class MyApplicationService
{
    private readonly ApplicationDbContext _context;
    private readonly UserResolverService _userResolverService;

    public MyApplicationService(ApplicationDbContext context, UserResolverService userResolverService)
    {
        _context = context;
        _userResolverService = userResolverService;
    }

    public async Task Create(MyModel entity)
    {
        entity.CreatorUserId = _userResolverService.GetUserId();
        _context.MyModel.Add(entity);
        await _context.SaveChangesAsync();
    }
}

此外，如果您不想使用 UserManager ，则可以简单地使 UserResolverService 类如下：

public class UserResolverService
{
    private readonly IHttpContextAccessor _httpContext;

    public UserResolverService(IHttpContextAccessor httpContext)
    {
        _httpContext = httpContext;
    }
    public string GetUserId()
    {
        var user = _httpContext?.HttpContext?.User as ClaimsPrincipal;
        var userId = user.Claims.ElementAt(0).Value;
        return userId;
    }
}

Answer 2

试试这个：https://msdn.microsoft.com/pt-br/library/system.threading.thread.currentprincipal(v=vs.110).aspx

public async Task<HttpResponseMessage> Post([FromBody] Activity activity) { HttpResponseMessage response; try { if (activity.Type == ActivityTypes.Message) { //do some stuff await Conversation.SendAsync(activity, () => new RootDialog()); } else { HandleSystemMessage(activity); } response = this.Request.CreateResponse(HttpStatusCode.OK); } catch (Exception ex) { //do some catching } return response; }

Answer 3

尝试从启动中删除此行：

services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();

我相信框架已经为你注册了。

Answer 4

我遇到了同样的问题。对我来说，解决方案正在等待完成请求。我发布了一个命令，并没有等待结果。 E.g。

PostSomething() {
  Task.Run(() => PostCommandAndDontWait());
}

现在我的httpContext用户没有我期望的声明。当我等待任务完成时（删除Task.Run，.Wait（）。Result（）等。我确实让用户拥有例外索赔。

Answer 5

试试这个：

HttpContext.Current.User.Identity.Name

如何在Web API .NET Core中获取Controller外部的当前用户

5 个答案: