Question

我遵循反序列化数组的准则，但无法弄清楚为什么我一直得到这个例外。我也用非空的json字符串尝试了这个，不像下面那个。

Private Class lobbActivity
    Public Property billNum_List() As String
    Public Property ruleOrReg_List() As String
    Public Property ratemaking_List() As String
    Public Property PcontrNum_List() As String
    Public Property Ptitle_List() As String
    Public Property MuniOrd_List() As String
    Public Property MuniRed_List() As String
    Public Property ExOrders_List() As String
    Public Property TribeSub_List() As String
    Public Property Tribes_List() As String
End Class

Function JSONCreateLobbyist(ByVal activityArr As String)
     Dim item = Newtonsoft.Json.JsonConvert.DeserializeObject(Of lobbActivity())(activityArr)

exception

{"billNum_List":["aa","aa"],"ruleOrReg_List":["vbb","vbb"],"ratemaking_List":["bb","bb"],"PcontrNum_List":[],"Ptitle_List":[],"MuniOrd_List":[],"MuniRed_List":[],"ExOrders_List":[],"TribeSub_List":[],"Tribes_List":[]}

使用不同的语法结束

Dim act As lobbActivity = js.Deserialize(Of lobbActivity)(activityArr)

Answer 1

如果在Visual Studio中使用“粘贴为JSON”功能，则无法正确定义数组属性。

Private Class lobbActivity
    Public Property billNum_List As String()
    Public Property ruleOrReg_List As String()
    Public Property ratemaking_List As String()
    Public Property PcontrNum_List As String()
    Public Property Ptitle_List As String()
    Public Property MuniOrd_List As String()
    Public Property MuniRed_List As String()
    Public Property ExOrders_List As String()
    Public Property TribeSub_List As String()
    Public Property Tribes_List As String()
End Class

Answer 2

您的属性不是数组，而是字符串。使用以下修改过的类

Private Class lobbActivity
    Public Property billNum_List() As String()
    Public Property ruleOrReg_List() As String()
    Public Property ratemaking_List() As String()
    Public Property PcontrNum_List() As String()
    Public Property Ptitle_List() As String()
    Public Property MuniOrd_List() As String()
    Public Property MuniRed_List() As String()
    Public Property ExOrders_List() As String()
    Public Property TribeSub_List() As String()
    Public Property Tribes_List() As String()
End Class

将json数组反序列化为vb .NET对象异常 - 无法序列化，因为类型需要数组

2 个答案: