使用dart从google knowledge API访问嵌套的JSON

dependencies:
  http: ^0.13.0
  convert: ^3.0.0

import 'package:http/http.dart' as http;
import 'dart:convert';

void main() async {
  var query = 'your_query_here';
  var apiUrl = Uri.parse('https://kgsearch.googleapis.com/v1/entities:search?query=$query&key=YOUR_API_KEY');

  var response = await http.get(apiUrl);
  if (response.statusCode == 200) {
    var jsonData = json.decode(response.body);
    
    // 在这里处理返回的JSON数据
  } else {
    print('请求失败，状态码：${response.statusCode}');
  }
}

class Entity {
  final String name;
  final String description;
  
  Entity({required this.name, required this.description});
  
  factory Entity.fromJson(Map<String, dynamic> json) {
    return Entity(
      name: json['name'],
      description: json['description'],
    );
  }
}

void main() async {
  // ...
  
  if (response.statusCode == 200) {
    var jsonData = json.decode(response.body);
    var entities = jsonData['itemListElement'] as List<dynamic>;
    
    var result = entities.map((e) => Entity.fromJson(e['result']['name'])).toList();
    
    // 处理解析后的数据
  }
  
  // ...
}