使用Dart语言解析嵌套的JSON数组并将其放在Model类中 [英] Parse Nested JSON Array and put it in a Model class using Dart Language
本文介绍了使用Dart语言解析嵌套的JSON数组并将其放在Model类中的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
关于我的问题此处
我想解析一个JSON数组而不在JSON数组中包含键,并将其放在Model类中.
I want to parse a JSON array without a key within JSON array and put it in a Model class.
这是我要解析的JSON数组.
here is a JSON Array that I want to parse.
[
{
"pk": 100,
"user": 5,
"name": "Flutter",
"details": "Fluttery",
"images": [
89,
88,
87,
86
],
"priority": 5
},
{
"pk": 99,
"user": 5,
"name": "",
"details": "h",
"images": [],
"priority": 5
},
{
"pk": 98,
"user": 5,
"name": "Flutter",
"details": "Fluttery",
"images": [
85
],
"priority": 5
},
]
我已经成功解析了主数组,但是无法解析包含整数数组的images
键.我想把它放到Model类中.请帮忙.
I have successfully parse the main Array but I cannot parse the images
key that contains an array of integers. I want to put it into Model class. please help.
谢谢!
推荐答案
您可以这样操作:
final jsonList = json.decode(response.body) as List;
final userList = jsonList.map((map) => User.fromJson(map)).toList();
用户类别
class User {
final int pk;
final String name;
final List<int> images;
User._({this.pk, this.name, this.images});
factory User.fromJson(Map<String, dynamic> json) {
return new User._(
pk: json['pk'],
name: json['name'],
images: (json['images'] as List).map((map) => int.parse("$map")).toList());
}
}
打印数据
for (var i = 0; i < userList.length; i++) {
print(userList[i].name);
final imageList = userList[i].images;
for (var j = 0 ; j < imageList.length; j++){
print("image: ${imageList[j]}");
}
}
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