Question

我是json的新手，正在努力将一些嵌套的json反序列化为一个对象。外部对象工作正常，但我没有得到内部对象的任何值。我尝试了几种解决方案，包括使用列表对象，集合，datacontractserializer，但似乎没有任何工作。我想我可能错过了一些明显的东西。这就是我现在所拥有的：

json字符串如下所示： { “类型”： “查找”， “消息”： “成功”， “版本”：0.1， “用户”：{ “LOGINNAME”： “用户名”， “供应商”：空}}

我的代码如下：

<Serializable()> Public Class LookupReturn
    Private _Type As String = ""
    Private _Message As String = ""
    Private _Version As String = ""
    Private _user As New jsonUser


    Public Property Type() As String
        Get
            Return _Type
        End Get
        Set(ByVal value As String)
            _Type = value
        End Set
    End Property

    Public Property Message() As String
        Get
            Return _Message
        End Get
        Set(ByVal value As String)
            _Message = value
        End Set
    End Property

    Public Property Version() As String
        Get
            Return _Version
        End Get
        Set(ByVal value As String)
            _Version = value
        End Set
    End Property

    Public Property Userobj() As jsonUser
        Get
            Return _user
        End Get
        Set(ByVal value As jsonUser)
            _user = value
        End Set
    End Property

End Class

<Serializable()> Public Class jsonUser
    Private _loginName As String = ""
    Private _vendor As String = ""

    Public Property loginName() As String
        Get
            Return _loginName
        End Get
        Set(ByVal value As String)
            _loginName = value
        End Set
    End Property

    Public Property vendor() As String
        Get
            Return _vendor
        End Get
        Set(ByVal value As String)
            _vendor = value
        End Set
    End Property

End Class

Dim _Json As New JavaScriptSerializer()
Dim _Message as string = "{"type":"lookup","message":"Success","version":0.1,"user"{"loginName":"username","vendor":null}}"
Dim returnData As LookupReturn = _Json.Deserialize(Of LookupReturn)(_Message)

我正在查找LookupReturn对象的类型，消息，版本值中的数据，并且它返回用户项的对象，但loginName的值是一个空字符串。

任何帮助将不胜感激！

谢谢！

Answer 1

在使用了这个之后，我意识到问题是我的嵌套对象没有被命名，因为它应该在我的代码的Get / Set部分中。因为我在jSon中调用了它“Userobj”而不是“user”，所以反序列化器无法正常工作。我把名字改为“用户”，一切运作良好！

在vb.net中反序列化嵌套的json

1 个答案: