• 直接上代码。

当然这里你需要先再flutter项目中pubspec.yaml引入dio

···
dependencies:
  flutter:
    sdk: flutter
  dio: ^2.1.7
···

import 'package:dio/dio.dart';
void main () {
  void requestData () async {
      Options options = Options(headers:   
      {HttpHeaders.authorizationHeader:" Bearer <your authorization code>"});
      Response response = await Dio().get(<your url address>, options: options);
      print(response);
  }
}

这样就可以做请求了，这里authorization是很多大厂的api都需要设置的api key。

希望能帮助到大家 ；)