c# - 如何在 C# 中反序列化 JSON 数组

Question

您好，我正在用 C# 开发 Web 应用程序。我有一个 JSON 对象。我正在尝试反序列化对象，如下所示。以下是我的结果。

 [ {
    "id": "ce053195-ae48-4457-bb88-6ca32f236bd1",
    "model": {
      "objectId": [
        "c760d95e-3fcb-43d1-a7db-111d3384ecbc"
      ],
      "name": [
        "Device1-Configuration"
      ]
    },
    "childs": 0,
    "access": 0,
    "allow": 0
  },
  {
    "id": "42ad8eb6-9f35-447c-8ea0-e1346dee410c",
    "model": {
      "objectId": [
        "c760d95e-3fcb-43d1-a7db-111d3384ecbc"
      ],
      "name": [
        "Device1-DeviceModel"
      ]
    },
    "childs": 1,
    "access": 0,
    "allow": 0
  }
] 

下面是我的模型。

public partial class Resource
{
    public System.Guid Id { get; set; }

    public Models Model { get; set; }

    public bool Selected { get; set; }

    public bool hasChildren { get; set; }

    public bool IsAllowed { get; set; }
}

下面是我的模型类。

public partial class Models
{
    public List<string> Name { get; set; }
}

我正在尝试从模型中分配名称数组。

foreach (JObject singScopeRes in result)
{
    var permission = new Rbac.BusinessEntities.V2.Resource();
    permission.Id = new Guid(singScopeRes["id"].ToString());
    permission.Model = new Rbac.BusinessEntities.V2.Models()
    {
        Name= singScopeRes["model"]["name"][0]
    };
 }

这是抛出错误:

cannot implicit convert type newtonsoft.json.linq.jtoken to system.generic.list

有人可以帮我解决这个问题吗？

Answer 1

使用类似 json2csharp 的工具生成模型:

public class Model
{
    public List<string> objectId { get; set; }
    public List<string> name { get; set; }
}

public class Resource
{
    public string id { get; set; }
    public Model model { get; set; }
    public int childs { get; set; }
    public int access { get; set; }
    public int allow { get; set; }
}

现在您可以像这样反序列化您的 json:

var obj = JsonConvert.DeserializeObject<Resource[]>(json);

---

如果您想坚持使用当前代码，您可以通过转换 JToken 并将其分配给 Name 属性来实现:

foreach (JObject singScopeRes in result)
{
    var permission = new Rbac.BusinessEntities.V2.Resource();
    permission.Id = new Guid(singScopeRes["id"].ToString());
    permission.Model = new Rbac.BusinessEntities.V2.Models()
    {
        Name = (singScopeRes["model"]["name"]).ToObject<List<string>>()
    };
 }