[英]JSON: How can I get json list with object in dart
I have such a list returned from the server, I couldn't find how to create an object model for it?我从服务器返回了这样一个列表,我找不到如何为其创建对象模型? Can you help me?你能帮助我吗?
[
{
"id": 1,
"reason": "Adres Sorunu Nedeniyle Alıcıya Ulaşılmadı"
},
{
"id": 2,
"reason": "Alıcı Adresinde Yok - Notlu Kargo"
},
]
Here is a small example of how to make a model of this JSON structure:下面是一个如何制作这个 JSON 结构的模型的小例子:
import 'dart:convert';
class MyJsonObject {
int id;
String reason;
MyJsonObject({
required this.id,
required this.reason,
});
factory MyJsonObject.fromJson(Map<String, dynamic> jsonMap) => MyJsonObject(
id: jsonMap['id'] as int,
reason: jsonMap['reason'] as String,
);
Map<String, Object> toJson() => {
'id': id,
'reason': reason,
};
@override
String toString() => '{ID: $id, Reason: $reason}';
}
void main() {
String jsonString = '''[
{
"id": 1,
"reason": "Adres Sorunu Nedeniyle Alıcıya Ulaşılmadı"
},
{
"id": 2,
"reason": "Alıcı Adresinde Yok - Notlu Kargo"
}
]
''';
List<dynamic> jsonList = jsonDecode(jsonString) as List<dynamic>;
List<MyJsonObject> myObjects = [
for (final jsonMap in jsonList)
MyJsonObject.fromJson(jsonMap as Map<String, dynamic>)
];
myObjects.forEach(print);
// {ID: 1, Reason: Adres Sorunu Nedeniyle Alıcıya Ulaşılmadı}
// {ID: 2, Reason: Alıcı Adresinde Yok - Notlu Kargo}
}
I recommend reading the following if you need to handle more complicated data structures: https://docs.flutter.dev/development/data-and-backend/json如果您需要处理更复杂的数据结构,我建议您阅读以下内容: https ://docs.flutter.dev/development/data-and-backend/json
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