ASP.Net核心依赖注入|如何在创建时访问用户或路由数据

public void ConfigureServices(IServiceCollection services)
{
    // 添加依赖注入服务
    services.AddMvc();

    // 注册自定义服务
    services.AddScoped<IMyService, MyService>();
}

public class MyController : Controller
{
    private readonly IMyService _myService;

    public MyController(IMyService myService)
    {
        _myService = myService;
    }

    public IActionResult Index()
    {
        // 使用注入的服务访问用户或路由数据
        var userId = HttpContext.User.Identity.Name;
        var routeData = HttpContext.GetRouteData();

        // 其他业务逻辑...

        return View();
    }
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env, IMyService myService)
{
    // 使用注入的服务进行配置和中间件注册
    app.UseRouting();

    // 其他配置...

    app.UseEndpoints(endpoints =>
    {
        endpoints.MapControllerRoute(
            name: "default",
            pattern: "{controller=Home}/{action=Index}/{id?}");
    });
}