在 ASP .NET Core 6.0 中获取 Windows 用户名

Question

I am currently trying to migrate an ASP.NET Core 5.0 project to ASP.NET Core 6.0. The Window user name is showing up on.NET 5.0. However, for .NET 6 project Window username is always using anonymous user. I am not sure if I am missing any code. Any help/suggestion is welcome!

.NET CORE 6.0 Window User .NET CORE 6.0 Window User

Old .NET CORE 5.0 Window User .NET CORE 5.0 Window User

launchSettings.json

"iisSettings": {
    "windowsAuthentication": true,
    "anonymousAuthentication": false,
    "iisExpress": {
      "applicationUrl": "http://localhost:55305",
      "sslPort": 44383
    }
  }

Program.cs

using Microsoft.AspNetCore.Server.IISIntegration;
using Microsoft.AspNetCore.Authentication.Negotiate;

var builder = WebApplication.CreateBuilder(args);
// Add services to the container.

builder.Services.AddControllersWithViews();
builder.Services.AddHttpContextAccessor();

builder.Services.AddSession(options => {
    options.IdleTimeout = TimeSpan.FromMinutes(120);//You can set Time   
});

var app = builder.Build();

// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Home/Error");
    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
    app.UseHsts();
}

app.UseHttpsRedirection();
app.UseStaticFiles();

app.UseRouting();

app.UseAuthorization();

app.UseSession();

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

app.Run();

HomeController.cs

using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using System.Diagnostics;
using WebApplication1.Models;

namespace WebApplication1.Controllers
{
    public class HomeController : Controller
    {
        private readonly ILogger<HomeController> _logger;
        private readonly IHttpContextAccessor? _httpContextAccessor;

        public HomeController(ILogger<HomeController> logger, IHttpContextAccessor httpContextAccessor)
        {
            _logger = logger;
            _httpContextAccessor = httpContextAccessor;
            string CurrentUserName = httpContextAccessor.HttpContext?.User.Identity?.Name;
        }

        public IActionResult Index()
        {
            return View();
        }

        public IActionResult Privacy()
        {
            return View();
        }

        [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
        public IActionResult Error()
        {
            return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
        }
    }
}

Answer 1

The reason for this problem is because you are missing this line of code.

// pls add this line
app.UseAuthentication();
app.UseAuthorization();