Question

我有一个班级

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://cloud.estimote.com/v1/beacons');
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERPWD, "$appid:$token");
$output = curl_exec($ch);
curl_close($ch);

这个类的一个实例被注入我的控制器，如下所示：

Startup.cs

public class SessionService : ISessionService
{
    public const string SessionUserKey = "UserViewModel";

    private readonly IHttpContextAccessor _httpContextAccessor;

    private ISession _session => _httpContextAccessor.HttpContext.Session;

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

    public UserViewModel LoggedInUser
    {
        get
        {
            return _session.GetObjectFromJson<UserViewModel>(SessionUserKey);
        }
        set
        {
            _session.SetObjectAsJson(SessionUserKey, value);
        }
    }

    public void Destroy()
    {
        _session.Clear();
    }
}

AccountController.cs

services.AddScoped<ISessionService, SessionService>();

但是，在我看来，我想要访问当前登录的用户：

public class AccountController : Controller
{
    private readonly IUserAccountService _accountService;
    private readonly ISessionService _sessionService;

    public AccountController(IUserAccountService accountService, ISessionService sessionService)
    {
        _accountService = accountService;
        _sessionService = sessionService;
    }
}

如何在不使@if(SomeClass.LoggedInUser != null){ // code removed for brevity }类的LoggedInUser属性静态的情况下实现此目的。似乎有些东西需要我做一个像这样的访问静态。但我想知道是否有更好的方法来实现这一目标。不，我不想使用SessionService。

我没有使用ASP.Net Identity

Answer 1

如果您想使用DI在视图中注入服务，则应使用@inject

@inject WebProject.Services.ISessionService CurrentSessionService

@if (CurrentSessionService.LoggedInUser != null)
{
   // ...
}

ASP.Net 5（MVC 6） - 通过包装器在视图中访问会话对象

1 个答案: