Json 反序列化 key/value 字典

Question

我看到了“类似问题”，但尝试了所有问题都没有解决我的问题。我有一个这样的Json

{
    "externalId": "pobj124",
    "dossierNumber": "Test 20210216",
    "issuedDate": "2021-01-28T23:00:00+00:00",
    "issuedPlace": "New-York",
    "properties": {
        "documentTypeId": 7,
        "countryLayout": "US"
    }
}

属性是未知数量的“名称”：“值”。既不知道名称也不知道价值。我的 class 定义为

<Serializable>
Public Class Document
    Public Property externalId As String
    Public Property dossierNumber As String
    Public Property issuedDate As Date
    Public Property issuedPlace As String
    Public Property properties As IDictionary(Of String, String)
End Class

调用代码为

Private Function DeserializeJson(json As String) As Document
    Return JsonConvert.DeserializeObject(Of Document)(json)
End Function

看来反序列化字典的方式不对。错误是

Cannot deserialize the current JSON array (e.g. [1,2,3]) into type 'Document' because the type requires a JSON object (e.g. {"name":"value"}) to deserialize correctly. To fix this error either change the JSON to a JSON object (e.g. {"name":"value"}) or change the deserialized type to an array or a type that implements a collection interface (e.g. ICollection, IList) like List that can be deserialized from a JSON array. JsonArrayAttribute can also be added to the type to force it to deserialize from a JSON array.

到目前为止我尝试过的：

Public Property properties As IDictionary(Of String, String)
Public Property properties As List(Of KeyValuePair(Of String, String))
Public Property properties As Dictionary(Of String, String)
Public Property properties() As KeyValuePair(Of String, String)

Answer 1

已在 vb.net 上尝试过类似下面的内容。使用 BsonTypeMapper.MapToDotNetValue.

JsonConvert.DeserializeObject(BsonTypeMapper.MapToDotNetValue(a(i).ToString().Replace("\n", "||")))

Answer 2

错误出现在底层类的定义中。一个被定义为

Public Class PartialClass
    Public Property goods() As Product
End Class

Public Class Product
    Public Property caracteristics As IDictionnary(Of String, String)
End Class

什么时候应该

Public Class PartialClass
    Public Property goods As List(Of Product)
End Class

Answer 3

当我试图弄明白却没有答案时，这让我发疯了。对我有用的是我从 class 中的数组和列表中删除了“属性”，只留下了 Public 关键字。

Json 反序列化 key/value 字典

Json deserialize key/value dictionary

vb.net

serialization

json.net