dotnet add package WeihanLi.AspNetMvc.AccessControlHelper

public class AdminPermissionRequireStrategy : IResourceAccessStrategy
{
  private readonly IHttpContextAccessor _accessor;

  public AdminPermissionRequireStrategy(IHttpContextAccessor accessor)
  {
    _accessor = accessor;
  }

  public bool IsCanAccess(string accessKey)
  {
    var user = _accessor.HttpContext.User;
    return user.Identity.IsAuthenticated && user.IsInRole("Admin");
  }

  public IActionResult DisallowedCommonResult => new ContentResult
  {
    Content = "No Permission",
    ContentType = "text/plain",
    StatusCode = 403
  };

  public IActionResult DisallowedAjaxResult => new JsonResult(new JsonResultModel
  {
    ErrorMsg = "No Permission",
    Status = JsonResultStatus.NoPermission
  });
}

public class AdminOnlyControlAccessStrategy : IControlAccessStrategy
{
  private readonly IHttpContextAccessor _accessor;

  public AdminOnlyControlAccessStrategy(IHttpContextAccessor httpContextAccessor) => _accessor = httpContextAccessor;

  public bool IsControlCanAccess(string accessKey)
  {
    if ("Never".Equals(accessKey, System.StringComparison.OrdinalIgnoreCase))
    {
      return false;
    }
    var user = _accessor.HttpContext.User;
    return user.Identity.IsAuthenticated && user.IsInRole("Admin");
  }
}

services.AddAccessControlHelper()
  .AddResourceAccessStrategy<Filters.AdminPermissionRequireStrategy>()
  .AddControlAccessStrategy<Filters.AdminOnlyControlAccessStrategy>()
  ;

services.AddAccessControlHelper()
.AddResourceAccessStrategy<Filters.AdminPermissionRequireStrategy>();

services.AddAccessControlHelper()
.AddResourceAccessStrategy<Filters.AdminPermissionRequireStrategy>(ServiceLifetime.Scoped);

[Authorize(AccessControlHelperConstants.PolicyName)]
public class SystemSettingsController : AdminBaseController
{
  // ...
}

[Authorize(AccessControlHelperConstants.PolicyName)]
public ActionResult UserList()
{
  return View();
}

@using ActivityReservation
@using WeihanLi.AspNetMvc.AccessControlHelper
@using WeihanLi.AspNetMvc.MvcSimplePager

@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
@addTagHelper *, WeihanLi.AspNetMvc.AccessControlHelper

<ul class="list-group" asp-access asp-access-key="AdminOnly">
  <li role="separator" class="list-unstyled">
    <br />
  </li>
  <li class="list-group-item">@Html.ActionLink("用户管理", "UserList", "Account")</li>

  <li class="list-group-item">@Html.ActionLink("操作日志查看", "Index", "OperationLog")</li>
  <li class="list-group-item">@Html.ActionLink("系统设置管理", "Index", "SystemSettings")</li>
  <li class="list-group-item">
    @Html.ActionLink("微信设置管理", "Index", new {
    controller = "Config",
    area = "Wechat"
  })
  </li>
</ul>