flutter Dio网络请求、model类

dio是目前比较流行的网络请求框架。

一个强大的Dart Http请求库，支持Restful API、FormData、拦截器、请求取消、Cookie管理、文件上传/下载、超时、自定义适配器等...

实现过程

1、引入Dio框架，在pubspec.yaml文件中的dependencies标签下面写即可

dio框架

dio:^5.1.2

2、在你需要网络请求的页面，引入头文件import 'package:dio/dio.dart';

3、实现代码

一个最简单的get请求

---

//网络请求

void _getMyInfoRequest()async{

Response response;

  var dio =Dio();

  response =await dio.get('http://guolin.tech/api/china');

  print('get网络请求：'+response.data.toString());

}

一个简单的post带参数请求

---

Map params = {

"id":89113,

};

response = await dio.post(HttpConfig.baseUrl+HttpConfig.userInfo,queryParameters:params);

print(resp.msg);

print(resp.code);

print('post网络请求：'+resp.data.toString());

model类

StoreDetailData.dart文件：

---

class StoreDetailData {

  int?id;

  String?cover;

  String?name;

  String?address;

  String?telephone;

  StoreDetailData();

  StoreDetailData.fromJson(Map json) {

    id = json['id'];

    cover = json['storeDoorstep'];

    name = json['storeName'];

    address = json['address']; //??

    telephone = json['telephone'];

  }

}

StoreListVModel.dart文件：

---

class StoreListVModel  extends ChangeNotifier {

StoreListVModel({this.scriptId = -1});

  final intscriptId;

  Liststores = [];

  int_pageIndex =0;

  bool_fullLoaded =false;

  intget pageIndex =>_pageIndex;

  boolget fullLoaded =>_fullLoaded;

  @override

  void dispose() {

    stores.clear();

    _pageIndex =0;

    super.dispose();

  }

FuturegetStoresPaged(int page)async {

if (page <=0) page =1;

    Map params = {

      "latitude": AccManager.defaultLongitude,//defaultLongitude/locLatitude

      "longitude": AccManager.defaultLatitude,//defaultLatitude/locLongitude

      "pageNo": page,

      "pageSize": defaultPagedSize,

    };

    if (scriptId != -1) {

      params['dramaId'] =scriptId;

    }

BaseResp resp =await HttpUtil().request(

     -1 !=scriptId ? HttpConfig.storeList: HttpConfig.storeListAround,

      params: params,

    );

    if (resp.success()) {

      List tmp = StoreListData.listFromJson(resp.data);

      if (tmp.isEmpty)return;

      if (page <=1) {

         stores.clear();

      }

stores.addAll(tmp);

      _pageIndex = page;

      _fullLoaded =_pageIndex >= StoreListData.totalPages;

      notifyListeners();

    }

}

FuturegetNextPage() => getStoresPaged(_pageIndex +1);

}

。。。