我正在尝试使用flutter实现JWT访问/刷新标记流。在我的访问标记过期后，我的QueuedInterceptor使用刷新标记获取新的访问标记。一切都正常，但它没有重试获取请求的资源并返回401。在刷新该页面后，资源加载。如何使用QueuedInterceptor实现重试？

class AuthInterceptor extends QueuedInterceptor {
  final Dio _dio;

  AuthInterceptor(this._dio);

  @override
  void onRequest(
      RequestOptions options, RequestInterceptorHandler handler) async {
    final accessToken = await storage.read(key: "accessToken");
    final refreshToken = await storage.read(key: "refreshToken");

    if (accessToken == null || refreshToken == null) {
      const AuthState.unauthenticated();

      final error = DioError(requestOptions: options, type: DioErrorType.other);
      return handler.reject(error);
    }

    final accessTokenHasExpired = JwtDecoder.isExpired(accessToken);
    final refreshTokenHasExpired = JwtDecoder.isExpired(refreshToken);

    var _refreshed = true;

    if (refreshTokenHasExpired) {
      const AuthState.unauthenticated();

      final error = DioError(requestOptions: options, type: DioErrorType.other);

      return handler.reject(error);
    } else if (accessTokenHasExpired) {
      // regenerate new access token
      _refreshed = await _regenerateAccessToken();
    }

    if (_refreshed) {
      options.headers["Authorization"] = "Bearer $accessToken";

      return handler.next(options);
    } else {
      final error = DioError(requestOptions: options, type: DioErrorType.other);
      return handler.reject(error);
    }
  }

  Future<bool> _regenerateAccessToken() async {
    try {
      var dio = Dio();

      final refreshToken = await storage.read(key: "refreshToken");

      final response = await dio.post(
        "https://localhost:7104/api/Login/Token/Refresh",
        options: Options(headers: {"Authorization": "Bearer $refreshToken"}),
      );

      if (response.statusCode == 200 || response.statusCode == 201) {
        final newAccessToken = response.data["accessToken"];
        storage.write(key: "accessToken", value: newAccessToken);
        return true;
      } else if (response.statusCode == 401 || response.statusCode == 403) {
        const AuthState.unauthenticated();
        return false;
      } else {
        return false;
      }
    } on DioError {
      return false;
    } catch (e) {
      return false;
    }
  }
}

这就是我用拦截器创建请求的方式。如果我的访问令牌过期，拦截器将抛出401：

final dio = Dio();

    dio.options.baseUrl = authenticationBackend;
    dio.interceptors.addAll([
      AuthInterceptor(dio),
    ]);

    var response = await dio.get('$host/animals');