JsonConvert.DeserializeObject 数组问题

Question

我有这个我正在尝试反序列化的 JSON：

{
  "events": [
    {
      "eventName": "service-review-created",
      "version": "1",
      "eventData": {
        "id": "XXXXXXbca843690a3015d3c0",
        "language": "en",
        "stars": 5,
        "title": "I was particularly impressed by the...",
        "text": "I was particularly impressed by the...",
        "referenceId": null,
        "createdAt": "2019-03-29T23:05:32Z",
        "link": "https://api.trustpilot.com/v1/reviews/XXX",
        "consumer": {
          "id": "XXXXXX40000ff000a74b9e1",
          "name": "XXX",
          "link": "https://api.trustpilot.com/v1/consumers/5899b3140000ff000a74b9e1"
        }
      }
    }
  ]
}

这些是我的模型：

public class Event
{
    public string eventName { get; set; }
    public string version { get; set; }
    public EventData eventData { get; set; }
}

public class EventData
{
    public string id { get; set; }
    public string language { get; set; }
    public int stars { get; set; }
    public string title { get; set; }
    public string text { get; set; }
    public string referenceId { get; set; }
    public DateTime createdAt { get; set; }
    public string link { get; set; }
    public Consumer consumer { get; set; }
}

public class Consumer
{
    public string id { get; set; }
    public string name { get; set; }
    public string link { get; set; }
}

当我尝试时：

List<Event> events = JsonConvert.DeserializeObject<List<Event>>(jsonstring);

我明白了：

无法反序列化当前的 JSON 对象（例如 { “名称”：“价值” } ) 转换为 'System.Collections.Generic.List`1[LambdaFeedFunctions.Trustpilot.Models.Event]' 类型，因为该类型需要 JSON 数组（例如 [1,2,3]）才能正确反序列化。 要修复此错误，请将 JSON 更改为 JSON 数组（例如 [1,2,3]）或更改反序列化类型，使其成为普通的 .NET 类型（例如，不是像整数这样的原始类型，而不是像可以从 JSON 对象反序列化的数组或列表。 JsonObjectAttribute 也可以添加到类型中，以强制它从 JSON 对象反序列化。

我不确定我需要进行哪些更改才能使其正常工作。

Answer 1

使用Json2CSharp:

public class Consumer
{
    public string id { get; set; }
    public string name { get; set; }
    public string link { get; set; }
}

public class EventData
{
    public string id { get; set; }
    public string language { get; set; }
    public int stars { get; set; }
    public string title { get; set; }
    public string text { get; set; }
    public string referenceId { get; set; }
    public DateTime createdAt { get; set; }
    public string link { get; set; }
    public Consumer consumer { get; set; }
}

public class Event
{
    public string eventName { get; set; }
    public string version { get; set; }
    public EventData eventData { get; set; }
}

public class RootObject
{
    public List<Event> events { get; set; }
}

然后

RootObject rootEvents = JsonConvert.DeserializeObject<RootObject>(jsonstring);

您现在可以通过以下方式访问您的活动：

rootEvents.events

Answer 2

您的 JSON 有一个 RootObject，这需要另一个 wrapper RootObject 类才能如前所述正确反序列化。

或者，如果您可以更改 JSON 结构以发送如下所示的数组（不带 RootObject），它应该可以正常解析。

[
  {
    "eventName": "service-review-created",
    "version": "1",
    "eventData": {
      "id": "XXXXXXbca843690a3015d3c0",
      "language": "en",
      "stars": 5,
      "title": "I was particularly impressed by the...",
      "text": "I was particularly impressed by the...",
      "referenceId": null,
      "createdAt": "2019-03-29T23:05:32Z",
      "link": "https://api.trustpilot.com/v1/reviews/XXX",
      "consumer": {
        "id": "XXXXXX40000ff000a74b9e1",
        "name": "XXX",
        "link": "https://api.trustpilot.com/v1/consumers/5899b3140000ff000a74b9e1"
      }
    }
  }
]