1. 确保在应用程序的Startup.cs文件中启用Windows身份验证，并将UseAuthentication添加到Configure方法中：

public void ConfigureServices(IServiceCollection services) { services.AddAuthentication(IISDefaults.AuthenticationScheme); //... }

public void Configure(IApplicationBuilder app) { app.UseAuthentication(); //... }

2. 如果应用程序部署在IIS中，则需要在应用程序的web.config文件中添加以下节点以启用Windows身份验证：

3. 确保调用WindowsIdentity.GetCurrent（）方法获取用户身份，并在控制器或方法中使用管道运算符（）指定用户身份：

[Authorize] public class MyController : ControllerBase { [HttpGet] public IActionResult Get() { WindowsIdentity windowsIdentity = HttpContext.User.Identity as WindowsIdentity; if (windowsIdentity != null) { WindowsPrincipal windowsPrincipal = new WindowsPrincipal(windowsIdentity); string username = windowsIdentity.Name; //获取当前用户的用户名 bool isAuthorized = windowsPrincipal.IsInRole(WindowsBuiltInRole.Administrator); //.. }

     //...
}

}