解码复杂的JSON?
我想把这个复杂的JSON数据解码成普通的字符串,我如何用一种简单的方法来实现呢解码复杂的JSON?,json,jsonconvert,Json,Jsonconvert,我想把这个复杂的JSON数据解码成普通的字符串,我如何用一种简单的方法来实现呢 更新 List<Map> list = []; @override void initState() { super.initState(); getList(); } void getList() async { //get data from internet/api //for
更新
List<Map> list = [];
@override
void initState() {
super.initState();
getList();
}
void getList() async {
//get data from internet/api
//for ex. I m using offline data
var jsonData = [
{
"id": "1",
"date": "18-Sep-2019",
"paystub_Details": {
"name": "Henry Nixon",
"position": "Senior Programmer",
"address": "30 Wertheim Crt",
"suite": "Suite C16",
"richmond": "Richmond Hill, ON L4B 1B9",
"e_id": 21,
"peroid": "10-Sep-2019 to 18-Sep-2019",
"payment_date": "18-Sep-2019",
"net_pay": 24600,
"e_total": 38000,
"d_total": 13400
},
"earn": {
"detail": [
{
"description": "EI",
"Units": 80,
"Rate": 800,
"Amount": 24000
},
{
"description": "Hourly Wages",
"Units": 80,
"Rate": 800,
"Amount": 14000
}
]
},
"deduction": {
"detail": [
{
"description": "CPP/QPP",
"Units": 2400
},
{
"description": "EI",
"Units": 1400
},
{
"description": "Fed Inc Tax",
"Units": 2400
},
{
"description": "Prov Inc Taxi",
"Units": 2400
},
{
"description": "Cpp/Qpp",
"Units": 2400
},
{
"description": "Cpp/Qpp",
"Units": 2400
}
]
}
},
{
"id": "2",
"date": "18-Oct-2019",
"paystub_Details": {
"name": "Naveen Avidi",
"position": "The Programmer",
"address": "30 Wertheim Crt",
"suite": "Suite C16",
"richmond": "Richmond Hill, ON L4B 1B9",
"e_id": 21,
"peroid": "10-Oct-2019 to 18-Oct-2019",
"payment_date": "18-Oct-2019",
"net_pay": 24600,
"e_total": 38000,
"d_total": 13400
},
"earn": {
"detail": [
{
"description": "EI",
"Units": 80,
"Rate": 800,
"Amount": 25000
},
{
"description": "Hourly Wages",
"Units": 80,
"Rate": 800,
"Amount": 17000
}
]
},
"deduction": {
"detail": [
{
"description": "CPP/QPP",
"Units": 2400
},
{
"description": "EI",
"Units": 1400
},
{
"description": "Fed Inc Tax",
"Units": 2400
},
{
"description": "Prov Inc Taxi",
"Units": 2400
},
{
"description": "Cpp/Qpp",
"Units": 2400
},
{
"description": "Cpp/Qpp",
"Units": 2400
}
]
}
}
];
setState(() {
for(Map js in jsonData){
list.add(js);
}
});
}
@override
Widget build(BuildContext context) {
return Container(
padding: EdgeInsets.all(20),
color: Colors.white,
child: list.length < 1
? ListTile(
leading: CircularProgressIndicator(), title: Text('Loading...'))
: ListView.builder(
itemCount: list.length,
itemBuilder: (rCon, rInd) {
return Card(
color: Colors.blueAccent,
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment:CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.all(5.0),
child: Text('${list[rInd]['paystub_Details']['name']}',
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 17)),
),
Padding(
padding: const EdgeInsets.all(3.0),
child: Text(
'${list[rInd]['paystub_Details']['position']}',
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 15)),
),
SizedBox(height: 10),
Container(
padding: const EdgeInsets.all(7.0),
height: 50,
child: ListView.builder(
scrollDirection: Axis.horizontal,
itemCount: list[rInd]['earn']['detail'].length,
itemBuilder: (con, ind) {
return Container(
padding: const EdgeInsets.all(5.0),
margin: const EdgeInsets.all(5.0),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(7),
color: Colors.cyanAccent),
child: Text(
'${list[rInd]['earn']['detail'][ind]['Amount']}',
style: TextStyle(
color: Colors.black,
fontWeight: FontWeight.bold,
fontSize: 15)));
}),
)
]));
}));
}
List=[];
@凌驾
void initState(){
super.initState();
getList();
}
void getList()异步{
//从internet/api获取数据
//例如,我正在使用脱机数据
var jsonData=[
{
“id”:“1”,
“日期”:“2019年9月18日”,
“工资存根详细信息”:{
“姓名”:“亨利·尼克松”,
“职位”:“高级程序员”,
“地址”:“30 Wertheim Crt”,
“套件”:“套件C16”,
“里士满”:“里士满山,L4B 1B9上”,
“e_id”:21,
“peroid”:“2019年9月10日至2019年9月18日”,
“付款日期”:“2019年9月18日”,
“净薪酬”:24600,
“e_总数”:38000,
“d_总计”:13400
},
“赚取”:{
“细节”:[
{
“说明”:“EI”,
“单位”:80,
“费率”:800,
“数额”:24 000
},
{
“说明”:“小时工资”,
“单位”:80,
“费率”:800,
“金额”:14000
}
]
},
“扣除额”:{
“细节”:[
{
“说明”:“CPP/QPP”,
“单位”:2400
},
{
“说明”:“EI”,
“单位”:1400
},
{
“说明”:“美联储公司税”,
“单位”:2400
},
{
“说明”:“Prov公司出租车”,
“单位”:2400
},
{
“说明”:“Cpp/Qpp”,
“单位”:2400
},
{
“说明”:“Cpp/Qpp”,
“单位”:2400
}
]
}
},
{
“id”:“2”,
“日期”:“2019年10月18日”,
“工资存根详细信息”:{
“姓名”:“纳文·阿维迪”,
“职位”:“程序员”,
“地址”:“30 Wertheim Crt”,
“套件”:“套件C16”,
“里士满”:“里士满山,L4B 1B9上”,
“e_id”:21,
“peroid”:“2019年10月10日至2019年10月18日”,
“付款日期”:“2019年10月18日”,
“净薪酬”:24600,
“e_总数”:38000,
“d_总计”:13400
},
“赚取”:{
“细节”:[
{
“说明”:“EI”,
“单位”:80,
“费率”:800,
“金额”:25000
},
{
“说明”:“小时工资”,
“单位”:80,
“费率”:800,
“金额”:17000
}
]
},
“扣除额”:{
“细节”:[
{
“说明”:“CPP/QPP”,
“单位”:2400
},
{
“说明”:“EI”,
“单位”:1400
},
{
“说明”:“美联储公司税”,
“单位”:2400
},
{
“说明”:“Prov公司出租车”,
“单位”:2400
},
{
“说明”:“Cpp/Qpp”,
“单位”:2400
},
{
“说明”:“Cpp/Qpp”,
“单位”:2400
}
]
}
}
];
设置状态(){
for(jsonData中的映射js){
list.add(js);
}
});
}
@凌驾
小部件构建(构建上下文){
返回容器(
填充:边缘设置。全部(20),
颜色:颜色,白色,
子项:list.length<1
?列表磁砖(
前导:CircularProgressIndicator(),标题:Text('Loading…'))
:ListView.builder(
itemCount:list.length,
项目生成器:(rCon,外皮){
回程卡(
颜色:Colors.blueAccent,
子:列(
mainAxisSize:mainAxisSize.min,
crossAxisAlignment:crossAxisAlignment.start,
儿童:[
填充物(
填充:常数边集全部(5.0),
子项:文本(“${list[rInd]['paystub\u Details']['name']}”,
样式:TextStyle(
颜色:颜色,白色,
fontWeight:fontWeight.bold,
尺寸:17),,
),
填充物(
填充:常数边集全部(3.0),
子:文本(
“${list[rInd]['paystub_Details']['position']}”,
样式:TextStyle(
颜色:颜色,白色,
fontWeight:fontWeight.bold,
尺寸:15),,
),
尺寸箱(高度:10),
容器(
填充:常数边集全部(7.0),
身高:50,
子项:ListView.builder(
滚动方向:轴水平,
itemCount:list[rInd]['earn']['detail'].长度,
项目生成器:(con,ind){
返回容器(
填充:常数边集全部(5.0),
边距:所有常数边集(5.0),
装饰:盒子装饰(
边界半径:边界半径。圆形(7),
颜色:颜色。青色强调),
子:文本(
“${list[rInd]['earn']['detail'][ind]['Amount']}”,
样式:TextStyle(
颜色:颜色,黑色,
容重:Fo