C# JSON 错误(将值 "username"转换为类型时出错)

Question

我收到 JSON 回复 instagram 和“序列化部分 JSON 片段”。

它是 JSON 回复

{
  "access_token": "Here token",
  "user": {
    "username": "here user name",
    "bio": "her bio.",
    "website": "her website",
    "profile_picture": "http://images.ak.instagram.com/profiles/here picture",
    "full_name": "her name",
    "id": "and her id"
  }
}

我创建了一个用户类:

public class User
{
    public string id { get; set; }
    public string username { get; set; }
    public string full_name { get; set; }
    public string profile_picture { get; set; }
}

并序列化

JObject instaCall = JObject.Parse(responseString);
            IList<JToken> results = instaCall["user"].Children().ToList();
            foreach (JToken apiResult in results)
            {
                User searchResult = JsonConvert.DeserializeObject<User>(apiResult.ToString());
            }

并给我一个错误:

Error converting value "username" to type 'WpfApplication1.Control.BasicPage1+User'. Path '', line 1, position 10.

Answer 1

正如其他人所说，您无需循环访问要反序列化的 json。另一种仅从 json 转换用户对象的方法:

JObject instaCall = JObject.Parse(responseString);    
User searchResult = instaCall["user"].ToObject<User>();