Question

这是我第一次使用JSON。我已经将一个自定义类序列化为一个List，但是不会反序列化。任何帮助表示赞赏

Dim Appointments As New List(Of UserAppointments)()
Using dt As DataTable = GetUserAppointments(ApptRequest.UserID, ApptRequest.PeriodFrom, ApptRequest.PeriodUntil)
For Each appt As DataRow In dt.Rows
    Appointments.Add(New UserAppointments With {.AppointmentID = CType(appt.Item("UniqueID").ToString, Long)})
    Next
End Using
Dim JSON As String = js.Serialize(JsonConvert.SerializeObject(Appointments))

产生

“ [{\” AppointmentID \“：33}，{\” AppointmentID \“：34}，{\” AppointmentID \“：35}，{\” AppointmentID \“：36}，{\” AppointmentID \ “：37}，{\” AppointmentID \“：38}，{\” AppointmentID \“：39}，{\” AppointmentID \“：40}，{\” AppointmentID \“：373}，{\” AppointmentID \ “：374}，{\” AppointmentID \“：375}，{\” AppointmentID \“：376}，{\” AppointmentID \“：377}，{\” AppointmentID \“：687}]”

当我尝试再次反序列化

Dim rslt As List(Of UserAppointments) = JsonConvert.DeserializeObject(Of List(Of UserAppointments))(JSON)

我收到以下错误

转换值“ [{{AppointmentID”：33}，{“ AppointmentID”：34}，{“ AppointmentID”：35}，{“ AppointmentID”：36}，{“ AppointmentID”：37}，{“ AppointmentID”：38}，{“ AppointmentID”：39}，{“ AppointmentID”：40}，{“ AppointmentID”：373}，{“ AppointmentID”：374}，{“ AppointmentID”：375}，{“ AppointmentID” ：376}，{“ AppointmentID”：377}，{“ AppointmentID”：687}]”以键入“ System.Collections.Generic.List`1 [NetworkRequests + UserAppointments]”。路径‘’，第1行，位置331。

Answer 1

我相信您的问题出在这条线上。您要对其进行两次序列化。

将JSON设为字符串= js.Serialize（JsonConvert.SerializeObject（Appointments））

您刚刚尝试过

将JSON设为字符串= JsonConvert.SerializeObject（Appointments）

还是有理由将其加倍？

JSON不反序列化为自定义类

1 个答案: