使用id作为键反序列化JSON对象结构

Question

我有这个由第三方Web服务生成的JSON

{
  "user_data": {
    "123456789": {
      "transactions_id": 123456789,
      "transaction_date": "2015-07-08T18:31:28+01:00",
      "reason_type": "REWARD",
      "category": "categoryFoo",
      "title": "titleFoo",
      "description": "",
      "reward_quantity": 5,
      "reward_name": " foo"
    },
    "1234567891": {
      "transactions_id": 1234567891,
      "transaction_date": "2015-07-08T18:33:06+01:00",
      "reason_type": "REWARD",
      "category": "categoryFoo",
      "title": "titleFoo",
      "description": "",
      "reward_quantity": 5,
      "reward_name": " foo"
    },
    "1234567892": {
      "transactions_id": 1234567892,
      "transaction_date": "2015-07-08T18:35:00+01:00",
      "reason_type": "REWARD",
      "category": "categoryFoo",
      "title": "titleFoo",
      "description": "",
      "reward_quantity": 5,
      "issuers_name": " foo"
    }
  }
}

交易金额将随着每个请求而变化,因此可能有3个像这样一次然后10个下一个.为了处理不同数量的事务,我理解您需要使用类似于此的列表public List<User> users { get; set; },用户与此类似

public class User
{
    public int transactions_id { get; set; }
    public string transaction_date { get; set; }
    public string reason_type { get; set; }
    public string category { get; set; }
    public string title { get; set; }
    public string description { get; set; }
    public int reward_quantity { get; set; }
    public string reward_name { get; set; }
}

但是我确实认为这会有效,因为JSON的结构奇怪,每个"事务"都有ID作为名称.对不起,我不确定正确的术语,但我认为你应该能够获得要点.

Answer 1

这在JSON中并不是一个特别不寻常的结构.这应该被反序列化为Dictionary<string, User>:

public class Root
{
    [JsonProperty("user_data")]
    public Dictionary<string, User> Users { get; set; }
}

然后就像JsonConvert.DeserializeObject<Root>正常一样使用.

注意我是如何使用JsonProperty来指定在JSON中表示名称的方式,同时保留惯用的.NET属性名称 - 我建议你也在你的User类中这样做.