如何反序列化这个嵌套的 json 响应并用多个对象保存数组值（在 Unity 中）

Question

我在 JSON 方面几乎没有经验，而且我遇到了一个问题。感谢任何帮助。

我想从 additionalInformation 数组中专门访问名称的值。

JSON 响应：

    {
    "statusCode": 200,
    "version": 1,
    "jsonData": [
        {
            "additionalInformation": [
                {
                    "id": "XXX94XXXX9xxXx_xxxXXXX",
                    "name": "xxxx xxx x xxxxxxxx"
                },
                {
                    "id": "0xXXxcXxv5PQqTi2zLgV",
                    "name": "xxx xxxxxxxx"
                },
                {
                    "id": "11Krt_our2rPCPqJ_2fKZR",
                    "name": "xxx xxxxxxxx xx"
                },
                {
                    "id": "2jYw4IyBP8KuozM_ej7DGf",
                    "name": "xxxxxxx 1"
                },
                {
                    "id": "3B8O805wL1ufabHMz1Je3v",
                    "name": "xxxxxxx 2"
                },
                {
                    "id": "0FVKUYZkvFaxd_OQUiyPBZ",
                    "name": "xxxxxxx"
                },
                {
                    "id": "3O41QFd0573QQvFco5zUUP",
                    "name": "Xxxxxxxxx"
                }
            ],
            "type": 0
        }
    ],
    "errorMessages": [],
    "warningMessages": [],
    "informationMessages": []
}

型号：

public class CFunctions
{
    public int statusCode { get; set; }
    public int version { get; set; }

    public List<PFunctions>[] jsonData { get; set; }

    public List<string> errorMessages { get; set; }

    public List<string> warningMessages { get; set; }

    public List<string> informationMessages { get; set; }

    /*public CFunctions()
    {
        jsonData = new List<PFunctions>();
    }*/
   }

[Serializable]
public class PFunctions 
{
    public List<PAdditionalInfo>[] additionalInformation { get; set; }

    public int type { get; set; }

    /*public PFunctions()
    {
        additionalInformation = new List<PAdditionalInfo>();
    }*/
}

[Serializable]
public class PAdditionalInfo 
{
   public  Guid id { get; set; }

   public string name { get; set; }
}

反序列化

var request = UnityWebRequest.Get(baseurl);
var operation = request.SendWebRequest();
var jsonResponse = request.downloadHandler.text;
List<CFunctions>[] PFunctionsList = JsonConvert.DeserializeObject<List<CFunctions>[]>(jsonResponse);

错误：

Cannot deserialize the current JSON object into type 'System.Collections.Generic.List`1[CFunctions][]' because the type requires a JSON array to deserialize correctly.
To fix this error either change the JSON to a JSON array or change the deserialized type so that it is a normal .NET type that can be deserialized from a JSON object.
JsonObjectAttribute can also be added to the type to force it to deserialize from a JSON object. Path 'statusCode', line 1, position 14. UnityEngine.Debug:Log(Object)

我试过的

即使我更改了 List<PAdditionalInfo> to List<PAdditionalInfo>[]

，错误仍然存在

我不确定如何使用 JsonObjectAttribute 以及它是否是最好的方法。

Answer 1

您已经在模型中声明了一个 List<T> 的数组，例如 List<PAdditionalInfo>[]。 json 表示单个数组，不嵌套。您可以通过选择一个或另一个来解决这个问题（我决定使用 List<> 但数组也有效）：

public class PFunctions 
{
    public List<PAdditionalInfo> additionalInformation { get; set; }  // removed []
    ...
}

public class CFunctions
{
    public int statusCode { get; set; }
    public int version { get; set; }

    public List<PFunctions> jsonData { get; set; }    // removed []
    ...
}

您要反序列化的 class 不正确。反序列化为正确的类型（CFunctions 而不是 List<CFunctions>[]）：

CFunctions cFunctions = JsonConvert.DeserializeObject<CFunctions>(json);

Answer 2

获取附加信息的最有效方法是这一行代码，您只需要一个 class

 List<AdditionalInformation>  additionalInformation = JObject.Parse(json)
["jsonData"][0]["additionalInformation"].ToObject<List<AdditionalInformation>>();

class

public class AdditionalInformation
    {
        public string id { get; set; }
        public string name { get; set; }
    }

如何反序列化这个嵌套的 json 响应并用多个对象保存数组值（在 Unity 中）

How to deserialise this nested json response and save the the array values with multiple Jobjects (in Unity)

c#

json

unity3d

deserialization