final putData = jsonEncode(params);// 处理提交参数 final putResponse = await http.put('http://192.168.201.21/user/modifyUser', body: putData, headers: {"token": userBasicsInfo.userTokenResult,"content-type":"application/json"} ).then((response){ varbackResult; if(response.statusCode ==...
19if (json==null) { 20throw FormatException("Null JSON provided to SimpleObject"); 21} 22 23return SimpleObject( 24aString: json['aString'], 25anInt: json['anInt'],? 26aDouble: json['aDouble'], 27aListOfStrings: json['aListOfStrings'] !=null 28? List<String>.from(json['aList...
"url": "http://ww1.sinaimg.cn/large/0065oQSqly1fsysqszneoj30hi0pvqb7.jpg", "used": true, "who": "lijinshanmx" } ] } 第一步: 建立JSON所对应得model类,解析过程在FLModel.formJson()中处理,对应key即可解析,这里注意类型必须对应,否则解析失败,比如返回String类型,你声明时却是int,这里不会...
if (response.statusCode == HttpStatus.ok) { var jsonStr = await response.transform(utf8.decoder).join(); var boredImageModel = JokeModel.fromJson(json.decode(jsonStr)); } 1. 2. 3. 4. 如果是比较简单的 json 解析,可以直接通过 json.decode 进行处理,比如 { "name": "John Smith", "em...
final response = await http.get(url); Map<String, dynamic> jsonMap = json.decode(response.body); return CommonModel.fromJson(jsonMap); } 1. 2. 3. 4. 5. 6. 7. 8. Future 是 异步操作 相关的核心 Dart 类 , 用于表示 将来 某个时间 可能出现的结果 ; ...
final response = await http.get(Uri.parse('https://example.com/api/user')); if (response.statusCode == 200) { return User.fromJson(jsonDecode(response.body)); } else { throw Exception('Failed to load user'); } } @override
import'package:http/http.dart'ashttp; Future<void> fetchData()async{varresponse =awaithttp.get(Uri.parse('https://api.example.com/data'));if(response.statusCode ==200) {vardata = json.decode(response.body);// 处理数据}else{throwException('Failed to load data'); ...
一般项目中Json数据会比较繁多,每次重复写实体类的模版代码显然枯燥无意义,可以使用一些工具来生成实体类。 比如使用网页自动生成:app.quicktype.io/。转换的实体类如下所示。 import'dart:convert';IpipFromJson(String str)=>Ip.fromJson(json.decode(str));StringipToJson(Ip data)=>json.encode(data.toJson(...
引入http 插件后 , import 'package:http/http.dart' as http; 调用http.get 方法 , 发送 Get 请求 , 会返回一个包括 http.Response 泛型的 Future , 返回值类型为 Future<http.Response> ; /// 调用 Http Post 方法 , 获取服务器的 json 数据Future<CommonModel> httpPost() async {//var url = Uri...
ResponseType? responseType = ResponseType.json, String? contentType, ValidateStatus? validateStatus, bool? receiveDataWhenStatusError, bool? followRedirects, int? maxRedirects, RequestEncoder? requestEncoder, ResponseDecoder? responseDecoder, ListFormat? listFormat, ...