Question

我收到格式化为

的信息

  {"UFs":   [
     {
     "Valor": "24.184,92",
     "Fecha": "2014-10-07"
     }
   ]}

我希望能够访问此处显示的值和日期。

我有一个班级

Public Class clValores
    Private pTipoValores As String
    Private pValores As String
    Public Property Fecha() As String
        Get
            Return pTipoValores
        End Get
        Set(ByVal value As String)
            pTipoValores = value
        End Set
    End Property
    Public Property Valor() As String
        Get
            Return pValores
        End Get
        Set(ByVal value As String)
            pValores = value
        End Set
    End Property
End Class

这段代码

Dim webClient As New System.Net.WebClient
Dim result As String = webClient.DownloadString("http://api.sbif.cl/api-sbifv3/recursos_api/uf?apikey=xxxxxxxxxxxxxxxxxxxxxxx&formato=JSON")

Dim Valor As clValores = JsonConvert.DeserializeObject(Of clValores)(result)

Response.Write(Valor.Fecha)
Response.Write(Valor.Valor)

但是在运行代码时，Valor什么都没有。我缺少什么

Answer 1

从我在post中读到的内容，它就像简单地包装UFs参数一样简单，所以要创建一个包含

的额外类

Public Class UFsContainer
    public UFs as List(Of clValores)
End Class

然后使用新类而不是clValores

反序列化它

Answer 2

将Imports System.Collections.Generic添加到您的项目中，然后创建另一个如下所示的类-

Public Class UFsContainer
    public UFs as List(Of clValores)()
End Class

然后将其反序列化为-

Dim Valor As UFsContainer = JsonConvert.DeserializeObject(Of UFsContainer)(result)

如何反序列化JSON结构？

2 个答案: