Http 如何获取颤振的关键数据？
如何获取关键数据？ 在我的登录小部件上，我已经得到了消息，但是对于数据，我仍然无法得到它。 这是 我试过这个频道 这里Http 如何获取颤振的关键数据？,http,flutter,Http,Flutter,如何获取关键数据？ 在我的登录小部件上，我已经得到了消息，但是对于数据，我仍然无法得到它。 这是 我试过这个频道 这里 Edid添加演示代码和演示图片 您的登录模型如下所示。您可以使用 final loginModel = loginModelFromJson(jsonString); 登录模型类 // To parse this JSON data, do // // final loginModel = loginModelFromJson(jsonString); impor
Edid添加演示代码和演示图片
您的登录模型如下所示。您可以使用
final loginModel = loginModelFromJson(jsonString);
// To parse this JSON data, do
//
// final loginModel = loginModelFromJson(jsonString);
import 'dart:convert';
LoginModel loginModelFromJson(String str) => LoginModel.fromJson(json.decode(str));
String loginModelToJson(LoginModel data) => json.encode(data.toJson());
class LoginModel {
bool success;
String message;
List<Datum> data;
LoginModel({
this.success,
this.message,
this.data,
});
factory LoginModel.fromJson(Map<String, dynamic> json) => LoginModel(
success: json["success"],
message: json["message"],
data: List<Datum>.from(json["data"].map((x) => Datum.fromJson(x))),
);
Map<String, dynamic> toJson() => {
"success": success,
"message": message,
"data": List<dynamic>.from(data.map((x) => x.toJson())),
};
}
class Datum {
String profileusersId;
String username;
String namaumkm;
String email;
String statususer;
Datum({
this.profileusersId,
this.username,
this.namaumkm,
this.email,
this.statususer,
});
factory Datum.fromJson(Map<String, dynamic> json) => Datum(
profileusersId: json["PROFILEUSERS_ID"],
username: json["USERNAME"],
namaumkm: json["NAMAUMKM"],
email: json["email"],
statususer: json["STATUSUSER"],
);
Map<String, dynamic> toJson() => {
"PROFILEUSERS_ID": profileusersId,
"USERNAME": username,
"NAMAUMKM": namaumkm,
"email": email,
"STATUSUSER": statususer,
};
}
//要解析此JSON数据，请执行以下操作
//
//final loginModel=loginModelFromJson（jsonString）；
导入“dart:convert”；
LoginModel loginModelFromJson（String str）=>LoginModel.fromJson（json.decode（str））；
字符串loginModelToJson（LoginModel数据）=>json.encode（data.toJson（））；
类登录模型{
成功；
字符串消息；
列出数据；
登录模型({
这就是成功，
这条信息，
这个数据,，
});
factory LoginModel.fromJson（映射json）=>LoginModel(
success:json[“success”]，
message:json[“message”]，
数据：List.from（json[“data”].map（（x）=>Datum.fromJson（x）），
);
映射到JSON（）=>{
“成功”：成功，
“信息”：信息，
“data”：List.from（data.map（（x）=>x.toJson（）），
};
}
类基准{
字符串profileusersId；
字符串用户名；
字符串namaumkm；
字符串电子邮件；
字符串状态用户；
基准面({
这个.profileusersId，
这个.username，
这是namaumkm，
这是一封电子邮件，
这个.statususer，
});
工厂数据.fromJson（映射json）=>数据(
profileusersId:json[“PROFILEUSERS\u ID”]，
用户名：json[“用户名”]，
namaumkm:json[“namaumkm”]，
电子邮件：json[“电子邮件”]，
statususer:json[“statususer”]，
);
映射到JSON（）=>{
“PROFILEUSERS_ID”：profileusersId，
“用户名”：用户名，
“NAMAUMKM”：NAMAUMKM，
“电子邮件”：电子邮件，
“STATUSUSER”：STATUSUSER，
};
}
import 'package:flutter/material.dart';
import 'dart:convert';
import 'package:http/http.dart';
LoginModel loginModelFromJson(String str) => LoginModel.fromJson(json.decode(str));
String loginModelToJson(LoginModel data) => json.encode(data.toJson());
class LoginModel {
bool success;
String message;
List<Datum> data;
LoginModel({
this.success,
this.message,
this.data,
});
factory LoginModel.fromJson(Map<String, dynamic> json) => LoginModel(
success: json["success"],
message: json["message"],
data: List<Datum>.from(json["data"].map((x) => Datum.fromJson(x))),
);
Map<String, dynamic> toJson() => {
"success": success,
"message": message,
"data": List<dynamic>.from(data.map((x) => x.toJson())),
};
}
class Datum {
String profileusersId;
String username;
String namaumkm;
String email;
String statususer;
Datum({
this.profileusersId,
this.username,
this.namaumkm,
this.email,
this.statususer,
});
factory Datum.fromJson(Map<String, dynamic> json) => Datum(
profileusersId: json["PROFILEUSERS_ID"],
username: json["USERNAME"],
namaumkm: json["NAMAUMKM"],
email: json["email"],
statususer: json["STATUSUSER"],
);
Map<String, dynamic> toJson() => {
"PROFILEUSERS_ID": profileusersId,
"USERNAME": username,
"NAMAUMKM": namaumkm,
"email": email,
"STATUSUSER": statususer,
};
}
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
// This is the theme of your application.
//
// Try running your application with "flutter run". You'll see the
// application has a blue toolbar. Then, without quitting the app, try
// changing the primarySwatch below to Colors.green and then invoke
// "hot reload" (press "r" in the console where you ran "flutter run",
// or simply save your changes to "hot reload" in a Flutter IDE).
// Notice that the counter didn't reset back to zero; the application
// is not restarted.
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
void _incrementCounter() {
loadJson();
setState(() {
// This call to setState tells the Flutter framework that something has
// changed in this State, which causes it to rerun the build method below
// so that the display can reflect the updated values. If we changed
// _counter without calling setState(), then the build method would not be
// called again, and so nothing would appear to happen.
_counter++;
});
}
@override
Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return Scaffold(
appBar: AppBar(
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
),
body: Center(
// Center is a layout widget. It takes a single child and positions it
// in the middle of the parent.
child: Column(
// Column is also layout widget. It takes a list of children and
// arranges them vertically. By default, it sizes itself to fit its
// children horizontally, and tries to be as tall as its parent.
//
// Invoke "debug painting" (press "p" in the console, choose the
// "Toggle Debug Paint" action from the Flutter Inspector in Android
// Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
// to see the wireframe for each widget.
//
// Column has various properties to control how it sizes itself and
// how it positions its children. Here we use mainAxisAlignment to
// center the children vertically; the main axis here is the vertical
// axis because Columns are vertical (the cross axis would be
// horizontal).
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.display1,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
);
}
loadJson() async {
//String fileText = await rootBundle.loadString('assets/help.html');
String url = 'http://test.com/Android/json1.txt';
Response response = await get(url);
// sample info available in response
String jsonString = response.body;
LoginModel loginModel = loginModelFromJson(jsonString);
print("${loginModel.data[0].profileusersId}");
print("${loginModel.data[0].email}");
}
}
导入“包装：颤振/材料.省道”；
导入“dart:convert”；
导入“包：http/http.dart”；
LoginModel loginModelFromJson（String str）=>LoginModel.fromJson（json.decode（str））；
字符串loginModelToJson（LoginModel数据）=>json.encode（data.toJson（））；
类登录模型{
成功；
字符串消息；
列出数据；
登录模型({
这就是成功，
这条信息，
这个数据,，
});
factory LoginModel.fromJson（映射json）=>LoginModel(
success:json[“success”]，
message:json[“message”]，
数据：List.from（json[“data”].map（（x）=>Datum.fromJson（x）），
);
映射到JSON（）=>{
“成功”：成功，
“信息”：信息，
“data”：List.from（data.map（（x）=>x.toJson（）），
};
}
类基准{
字符串profileusersId；
字符串用户名；
字符串namaumkm；
字符串电子邮件；
字符串状态用户；
基准面({
这个.profileusersId，
这个.username，
这是namaumkm，
这是一封电子邮件，
这个.statususer，
});
工厂数据.fromJson（映射json）=>数据(
profileusersId:json[“PROFILEUSERS\u ID”]，
用户名：json[“用户名”]，
namaumkm:json[“namaumkm”]，
电子邮件：json[“电子邮件”]，
statususer:json[“statususer”]，
);
映射到JSON（）=>{
“PROFILEUSERS_ID”：profileusersId，
“用户名”：用户名，
“NAMAUMKM”：NAMAUMKM，
“电子邮件”：电子邮件，
“STATUSUSER”：STATUSUSER，
};
}
void main（）=>runApp（MyApp（））；
类MyApp扩展了无状态小部件{
//此小部件是应用程序的根。
@凌驾
小部件构建（构建上下文）{
返回材料PP(
标题：“颤振演示”，
主题：主题数据(
//这是应用程序的主题。
//
//尝试使用“flutter run”运行应用程序。您将看到
//应用程序有一个蓝色工具栏。然后，在不退出应用程序的情况下，重试
//将下面的primarySwatch更改为Colors.green，然后调用
//“热重新加载”（在运行“颤振运行”的控制台中按“r”，
//或者只需将更改保存到颤振IDE中的“热重新加载”。
//请注意，计数器没有重置回零；应用程序
//未重新启动。
主样本：颜色。蓝色，
),
主页：MyHomePage（标题：“颤振演示主页”），
);
}
}
类MyHomePage扩展StatefulWidget{
MyHomePage（{Key，this.title}）：超级（Key:Key）；
//此小部件是应用程序的主页。它是有状态的，表示
//它有一个状态对象（定义如下），其中包含影响
//看起来怎么样。
//此类是状态的配置。它保存值（在此
//案例名称）由家长（在本例中为应用程序小部件）提供，以及
//由State的build方法使用。小部件子类中的字段包括
//始终标记为“最终”。
最后的字符串标题；
@凌驾
_MyHomePageState createState（）=>\u MyHomePageState（）；
}
类_MyHomePageState扩展状态{
int _计数器=0；
void _incrementCounter（）{
loadJson（）；
设置状态（）{
//这个对setState的调用告诉颤振框架，某些东西
//已在此状态下更改，这将导致它重新运行下面的生成方法
//以便显示能够反映更新的值。如果我们更改
//_计数器，而不调用setState（），则生成方法将不可用
//再打一次电话，似乎什么也没发生。
_计数器++；
});
}
@凌驾
小部件构建（构建上下文）{
//每次调用setState时都会重新运行此方法，例如，按done
//通过上面的_incrementCounter方法。
//
//对颤振框架进行了优化，以制定重新运行的构建方法
//快速，这样你就可以重建任何需要更新的东西
//而不是必须单独更改小部件的实例。
返回脚手架(
appBar:appBar(
//在这里，我们从MyHomePage对象中获取由创建的值
//使用App.build方法，并使用它设置appbar标题。
标题：文本（widget.title），
),
正文：中(
//中心是一个布局小部件。它只需要一个子元素
import 'package:flutter/material.dart';
import 'dart:convert';
import 'package:http/http.dart';
LoginModel loginModelFromJson(String str) => LoginModel.fromJson(json.decode(str));
String loginModelToJson(LoginModel data) => json.encode(data.toJson());
class LoginModel {
bool success;
String message;
List<Datum> data;
LoginModel({
this.success,
this.message,
this.data,
});
factory LoginModel.fromJson(Map<String, dynamic> json) => LoginModel(
success: json["success"],
message: json["message"],
data: List<Datum>.from(json["data"].map((x) => Datum.fromJson(x))),
);
Map<String, dynamic> toJson() => {
"success": success,
"message": message,
"data": List<dynamic>.from(data.map((x) => x.toJson())),
};
}
class Datum {
String profileusersId;
String username;
String namaumkm;
String email;
String statususer;
Datum({
this.profileusersId,
this.username,
this.namaumkm,
this.email,
this.statususer,
});
factory Datum.fromJson(Map<String, dynamic> json) => Datum(
profileusersId: json["PROFILEUSERS_ID"],
username: json["USERNAME"],
namaumkm: json["NAMAUMKM"],
email: json["email"],
statususer: json["STATUSUSER"],
);
Map<String, dynamic> toJson() => {
"PROFILEUSERS_ID": profileusersId,
"USERNAME": username,
"NAMAUMKM": namaumkm,
"email": email,
"STATUSUSER": statususer,
};
}
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
// This is the theme of your application.
//
// Try running your application with "flutter run". You'll see the
// application has a blue toolbar. Then, without quitting the app, try
// changing the primarySwatch below to Colors.green and then invoke
// "hot reload" (press "r" in the console where you ran "flutter run",
// or simply save your changes to "hot reload" in a Flutter IDE).
// Notice that the counter didn't reset back to zero; the application
// is not restarted.
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
void _incrementCounter() {
loadJson();
setState(() {
// This call to setState tells the Flutter framework that something has
// changed in this State, which causes it to rerun the build method below
// so that the display can reflect the updated values. If we changed
// _counter without calling setState(), then the build method would not be
// called again, and so nothing would appear to happen.
_counter++;
});
}
@override
Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return Scaffold(
appBar: AppBar(
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
),
body: Center(
// Center is a layout widget. It takes a single child and positions it
// in the middle of the parent.
child: Column(
// Column is also layout widget. It takes a list of children and
// arranges them vertically. By default, it sizes itself to fit its
// children horizontally, and tries to be as tall as its parent.
//
// Invoke "debug painting" (press "p" in the console, choose the
// "Toggle Debug Paint" action from the Flutter Inspector in Android
// Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
// to see the wireframe for each widget.
//
// Column has various properties to control how it sizes itself and
// how it positions its children. Here we use mainAxisAlignment to
// center the children vertically; the main axis here is the vertical
// axis because Columns are vertical (the cross axis would be
// horizontal).
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.display1,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
);
}
loadJson() async {
//String fileText = await rootBundle.loadString('assets/help.html');
String url = 'http://test.com/Android/json1.txt';
Response response = await get(url);
// sample info available in response
String jsonString = response.body;
LoginModel loginModel = loginModelFromJson(jsonString);
print("${loginModel.data[0].profileusersId}");
print("${loginModel.data[0].email}");
}
}