flutter-go/lib/utils/net_utils.dart

import 'dart:async';
import 'dart:io';
import 'package:cookie_jar/cookie_jar.dart';
import 'package:dio/dio.dart';
import 'package:path_provider/path_provider.dart';

Map<String,dynamic> optHeader = {
  'accept-language':'zh-cn',
  'content-type':'application/json'
};

var dio = new Dio(BaseOptions(connectTimeout: 30000,headers: optHeader));

class NetUtils {

  static Future get(String url, [Map<String, dynamic> params]) async {
    var response;

    // 设置代理 便于本地 charles 抓包
    // (dio.httpClientAdapter as DefaultHttpClientAdapter).onHttpClientCreate =
    //     (HttpClient client) {
    //   client.findProxy = (uri) {
    //     return "PROXY 30.10.27.34:8888";
    //   };
    // };

    Directory documentsDir = await getApplicationDocumentsDirectory();
    String documentsPath = documentsDir.path;
    var dir = new Directory("$documentsPath/cookies");
    await dir.create();
    dio.interceptors.add(CookieManager(PersistCookieJar(dir: dir.path)));
    if (params != null) {
      response = await dio.get(url, queryParameters: params);
    } else {
      response = await dio.get(url);
    }
    return response.data;
  }

  static Future post(String url, Map<String, dynamic> params) async {
        // 设置代理 便于本地 charles 抓包
    (dio.httpClientAdapter as DefaultHttpClientAdapter).onHttpClientCreate =
        (HttpClient client) {
      client.findProxy = (uri) {
        return "PROXY 30.10.27.34:8888";
      };
    };
    Directory documentsDir = await getApplicationDocumentsDirectory();
    String documentsPath = documentsDir.path;
    var dir = new Directory("$documentsPath/cookies");
    await dir.create();
    dio.interceptors.add(CookieManager(PersistCookieJar(dir: dir.path)));
    var response = await dio.post(url, data: params);
    return response.data;
  }
}