我试图弄清楚如何在 ASP.NET 控制器之外访问当前登录的用户名.
I am trying to figure out how to get access to the current logged in username outside of an ASP.NET Controller.
例如我正在尝试这样做:
For example I am trying to do this:
跟踪使用实体框架代码自动创建和修改字段
在 DbContext 中设置实体跟踪.
To setup tracking on entities in the DbContext.
这是我的 ApplicationDbContext 但我不断收到错误消息,提示 _httpContextAccessor is null:
Here is my ApplicationDbContext but I keep getting an error saying _httpContextAccessor is null:
private readonly IHttpContextAccessor _httpContextAccessor; public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options, IHttpContextAccessor httpContextAccessor) : base(options) { _httpContextAccessor = httpContextAccessor; } 推荐答案尝试注入 IHttpContextAccessor 接口
你甚至可以通过创建一个服务来进一步抽象它来提供你想要的信息(这是当前登录的用户名)
You can even abstract it further by creating a service to provide just the information you want (Which is the current logged in username)
public interface IUserResolverService { string GetUser(); } public class UserResolverService : IUserResolverService { private readonly IHttpContextAccessor accessor; public UserResolverService(IHttpContextAccessor accessor) { this.accessor = accessor; } public string GetUser() { var username = accessor?.HttpContext?.User?.Identity?.Name ; return username ?? "unknown"; } }您现在需要在 Startup.ConfigureServices 中设置 IHttpContextAccessor 以便能够注入它:
You need to setup IHttpContextAccessor now in Startup.ConfigureServices in order to be able to inject it:
services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>(); //OR //services.AddHttpContextAccessor(); services.AddTransient<IUserResolverService, UserResolverService>();并根据需要将其传递到您的存储库以记录关联的用户名
and pass that to your repository as needed to record associated username
更多推荐
将 IHttpContextAccessor 注入 ApplicationDbContext ASP.NET Core 1.0
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