DioError [DioErrorType.response]：Http 状态错误 [401]

Question

final dio = Dio();
    try {
      await dio.request(
        'https://api.example.com/api/v1/auth/validateMobile',
        data: {"phoneNo": "+91999999999"},
        options: Options(
          method: 'GET',
          headers: {
            HttpHeaders.authorizationHeader:
                'Bearer $token',
            'content-Type': 'application/json'
          },
        ),
      );
    } on DioError catch (e) {
      print(e);
    }

I/flutter (16336): DioError [DioErrorType.response]: Http status error [401]
I/flutter (16336): #0      DioMixin.assureDioError (package:dio/src/dio_mixin.dart:819:20)
I/flutter (16336): #1      DioMixin._dispatchRequest (package:dio/src/dio_mixin.dart:678:13)
I/flutter (16336): <asynchronous suspension>
I/flutter (16336): #2      DioMixin.fetch.<anonymous closure>.<anonymous closure> (package:dio/src/dio_mixin.dart)
I/flutter (16336): <asynchronous suspension>

即使我使用正确的令牌传递授权标头，我仍收到 401 错误。感谢您的帮助。

Answer 1

将此参数与其他选项参数一起使用，它对我有用，我希望它也对你有用

dio.request( ***, 选项: 选项(...

Options (validateStatus: (_) => true)

如果不起作用，你可以尝试这个

Options (
 validateStatus: (_) => true,
 contentType: Headers.jsonContentType,
 responseType:ResponseType.json,
)

Answer 2

你应该像这样传递内容类型：

HttpHeaders.contentTypeHeader: 'application/json'

这是使用它代替 Dio 的示例：

fetchSearchedNews(String searchParameter) async {
    final queryParameters = {
      'keywords': searchParameter,
    };
    final uri = Uri.https('$baseUrl', '/v1/search', queryParameters);
    final response = await http.get(uri, headers: {
      HttpHeaders.authorizationHeader:
          'YOUR KEY HERE',
      HttpHeaders.contentTypeHeader: 'application/json',
    });
    print(response.statusCode);
    if (response.statusCode == 200) {
      final items = json.decode(response.body);
      return NewsModel.fromJson(items).news;
    } else if (response.statusCode == 401) {
      throw Exception('Error 401');
    } else if (response.statusCode == 429) {
      throw Exception('Error 429');
    } else {
      throw Exception('null');
    }
  }