problem_check_system/lib/app/bindings/initial_binding.dart

import 'package:get/get.dart';
import 'package:dio/dio.dart';
import 'package:flutter/foundation.dart'; // 导入 debugPrint
import 'package:get_storage/get_storage.dart';
import 'package:problem_check_system/data/providers/connectivity_provider.dart';
import 'package:problem_check_system/data/providers/local_database.dart';

class InitialBinding implements Bindings {
  @override
  void dependencies() {
    // 全局注册 GetStorage 实例 - 也改为使用 put 确保立即创建
    Get.put<GetStorage>(GetStorage(), permanent: true);
    // 全局注册 Dio 实例 - 使用 put 而不是 lazyPut，并设置为永久
    Get.put<Dio>(createDioInstance());
    //
    Get.put<LocalDatabase>(LocalDatabase());
    Get.put<ConnectivityProvider>(ConnectivityProvider());
  }

  // 提取创建 Dio 实例的逻辑到单独的方法
  Dio createDioInstance() {
    final dio = Dio(
      BaseOptions(
        baseUrl: 'https://xhdev.anxincloud.cn', // 替换为你的服务器地址
        connectTimeout: const Duration(seconds: 15),
        receiveTimeout: const Duration(seconds: 15),
      ),
    );

    // 添加日志拦截器，仅在调试模式下打印日志
    if (kDebugMode) {
      dio.interceptors.add(
        LogInterceptor(
          requestBody: true,
          responseBody: true,
          logPrint: (o) => debugPrint(o.toString()),
        ),
      );
    }

    // 添加认证拦截器
    dio.interceptors.add(
      InterceptorsWrapper(
        onRequest: (options, handler) {
          final token = ""; //todo 获取token
          if (token != null && token.isNotEmpty) {
            options.headers['Authorization'] = 'Bearer $token';
          }
          return handler.next(options);
        },
        onError: (DioException e, handler) {
          if (e.response?.statusCode == 401) {
            // 如果收到 401 Unauthorized 错误，跳转回登录页
            Get.offAllNamed('/login');
          }
          return handler.next(e);
        },
      ),
    );

    return dio;
  }
}