在Flutter中访问嵌套的JSON文件

{
  "name": "John",
  "age": 30,
  "address": {
    "street": "123 Main St",
    "city": "New York"
  }
}

import 'dart:convert';
import 'package:flutter/services.dart';

Future<void> loadJsonData() async {
  String jsonString = await rootBundle.loadString('assets/data.json');
  Map<String, dynamic> jsonData = jsonDecode(jsonString);

  // 访问嵌套的JSON数据
  String name = jsonData['name'];
  int age = jsonData['age'];
  String street = jsonData['address']['street'];
  String city = jsonData['address']['city'];

  // 打印数据
  print('Name: $name');
  print('Age: $age');
  print('Street: $street');
  print('City: $city');
}

flutter:
  assets:
    - assets/data.json