如何在 C# 对象中解析 {"Europe":{"France":"Paris","UK":"London","Germany":"Berlin" }} Json 键是实际对象值的对象？

Question

更新：我想我必须重新表述这个问题：我正在从数据库源获取大陆、国家和首都列表，我必须构建一个具有给定结构的 JSON 对象.

我必须创建一个代表以下 JSON 对象格式的 Dto 对象：

{
    "Europe":{ 
        "France":"Paris",
        "UK":"London",
        "Germany":"Berlin"
    }
 }

其中“欧洲”是大陆类型对象的值，“法国”、“英国”和“伦敦”是对象国家/地区的值：

public class Country
{
   public string Name { get; set; }
   public string Capital { get; set; }
}

如何用对象类表示 JSON 对象？

Answer 1

试试这个

var json="{\"Europe\":{\"France\":\"Paris\",\"UK\":\"London\",\"Germany\":\"Berlin\"}}";

var result= JsonConvert.DeserializeObject<EuropeCountry>));

var continent = new Continent {
 Name = nameof( result.Europe),
 Countries = result.Europe.Select(e => new Country {Name=e.Key, Capital=e.Value} ).ToList()
};
 

public class Continent
{
    public string Name { get; set; }
    public List<Country> Countries { get; set; }
}

public class EuropeCountries
{
    public Dictionary<string, string> Europe {get;set;}
}

Answer 2

按照@的建议使用代理Dictionary<string, Dictionary<string, string>> 卡米洛-特雷文托

using System.Text.Json.Serialization;
using System.Text.Json;

public class Continent
{
  public string Name { get; set; }
  public List<Country> Countries { get; set; } = new List<Country>();
}

public class Country
{
  public string Name { get; set; }
  public string Capital { get; set; }
}

string json = @"
{
    ""Europe"":{ 
        ""France"":""Paris"",
        ""UK"":""London"",
        ""Germany"":""Berlin""
    }
}
";

var dic = JsonSerializer.Deserialize<Dictionary<string,Dictionary<string,string>>>(json);

var continents = new List<Continent>();

foreach(var key in dic.Keys) {
  var continent = new Continent() { Name = key };
  foreach(var subkey in dic[key].Keys)
  {
    continent.Countries.Add(new Country() { Name = subkey, Capital = dic[key][subkey] });
  }
  continents.Add(continent);
}

如何在 C# 对象中解析 {"Europe":{"France":"Paris","UK":"London","Germany":"Berlin" }} Json 键是实际对象值的对象？

How to parse in C# object the {"Europe":{"France":"Paris","UK":"London","Germany":"Berlin"}} Json object where the keys are actual object values?

c#

json

object

dto