fun-selfie-app/lib/dio_util/dio_util.dart

import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:fun_selfie_app/dio_util/dio_interceptors.dart';
// import 'package:fun_selfie_app/dio_util/dio_method.dart';

class DioUtil {
  static DioUtil? _instance;
  static Dio _dio = Dio();
  Dio get dio => _dio;

  DioUtil._internal() {
    _instance = this;
    _instance!._init();
  }

  factory DioUtil() => _instance ?? DioUtil._internal();

  static DioUtil? getInstance() {
    _instance ?? DioUtil._internal();
    return _instance;
  }

  /// 取消请求token
  final CancelToken _cancelToken = CancelToken();

  ///

  _init() {
    /// 初始化基本选项
    BaseOptions options = BaseOptions(
        baseUrl:
            "http://118.123.247.197:8080/jeecg-boot/", //"http://localhost:8080",
        connectTimeout: const Duration(seconds: 6), // 连接超时时间
        receiveTimeout: const Duration(seconds: 6)); // 响应超时时间

    /// 初始化dio
    _dio = Dio(options);

    /// 添加拦截器
    _dio.interceptors.add(DioInterceptors());
  }

  /// 开启日志打印
  void openLog() {
    _dio.interceptors.add(LogInterceptor(responseBody: true));
  }

  /// 请求类
  Future<T> request<T>(
    String path, {
    String method = 'get',
    Map<String, dynamic>? params,
    data,
    CancelToken? cancelToken,
    Options? options,
    ProgressCallback? onSendProgress,
    ProgressCallback? onReceiveProgress,
  }) async {
    options ??= Options(method: method);
    try {
      Response response;
      response = await _dio.request(path,
          data: data,
          queryParameters: params,
          cancelToken: cancelToken ?? _cancelToken,
          options: options,
          onSendProgress: onSendProgress,
          onReceiveProgress: onReceiveProgress);
      return response.data;
    } on DioException catch (e) {
      debugPrint(e.toString());
      rethrow;
    }
  }

  /// 取消网络请求
  void cancelRequests({CancelToken? token}) {
    token ?? _cancelToken.cancel("cancelled");
  }
}