json - VB.net 使用 JSON.net 反序列化 JSON

Question

自 2 周以来我一直在寻找解决问题的方法，但没有解决方案。我想用 JSON.NET 反序列化 JSON，但现在...

我创建了类，但是当我反序列化对象时保持为空（无）。

这里是 JSON：

{"plannifReponse":
{"@competence":"Abonnement","plannifDonnees":
{"entry":
[
{"key":"2013-8-11T00:00","value":
{"creneaux":
[
{"@jour":"2013-8-11T00:00","@heure":"09","@minute":"30","nombreRessources":10},
{"@jour":"2013-8-11T00:00","@heure":"10","@minute":"30","nombreRessources":2},
{"@jour":"2013-8-11T00:00","@heure":"17","@minute":"30","nombreRessources":5},
{"@jour":"2013-8-11T00:00","@heure":"20","@minute":"30","nombreRessources":5},
{"@jour":"2013-8-11T00:00","@heure":"21","@minute":"00","nombreRessources":16}
]
}
},
{"key":"2013-7-30T00:00","value":
{"creneaux":
[{"@jour":"2013-7-30T00:00","@heure":"12","@minute":"00","nombreRessources":4},{"@jour":"2013-7-30T00:00","@heure":"12","@minute":"15","nombreRessources":10},{"@jour":"2013-7-30T00:00","@heure":"12","@minute":"30","nombreRessources":3},{"@jour":"2013-7-30T00:00","@heure":"14","@minute":"00","nombreRessources":8},{"@jour":"2013-7-30T00:00","@heure":"18","@minute":"30","nombreRessources":10}]}}]}}}

为此，我用那个类翻译：

Public Class plannifReponse
    Public competence As String
    Public plannifDonnees As Dictionary(Of String, ListCreneaux)
End Class

Public Class ListCreneaux
    Public listCreneaux() As Creneau
End Class

Public Class Creneau
    Public jour As String
    Public heure As String
    Public minute As String
    Public nombreRessources As Integer
    Public Sub New(ByVal _jour, ByVal _heure, ByVal _minute, ByVal _nombreRessources)
        jour = _jour
        heure = _heure
        minute = _minute
        nombreRessources = _nombreRessources
    End Sub
End Class

和代码：

Dim prev As plannifReponse = JsonConvert.DeserializeObject(Of plannifReponse)(My_dispos)

但它不起作用，没有错误消息，但 prev 停留“Nothing”

寻求帮助，这里的源对象用于序列化（它在 Java 上）

public class OutputPlannif {
    private String competence;
    private HashMap<String, ListCreneaux> plannifDonnees;
}

public class ListCreneaux {
    private ArrayList<Creneau> listCrenaux;
}

public class Creneau {
    private String jour;
    private String heure;
    private String minute;
    private int nombreRessources;
}

如果有人有想法...谢谢马特

Answer 1

您应该创建一系列映射您想要反序列化的 JSON 的类。有一些工具（比如这个）可以为你做到这一点。或者您也可以手动操作，一次取一个成员，结果如下所示：

Public Class StackOverflow_17956746
    Public Class OutputPlannif
        <JsonProperty("plannifReponse")> _
        Public PlannifReponse As PlannifReponse
    End Class

    Public Class PlannifReponse
        <JsonProperty("@competence")> _
        Public Competence As String

        <JsonProperty("plannifDonnees")> _
        Public PlannifDonnees As PlannifDonnees
    End Class

    Public Class PlannifDonnees
        <JsonProperty("entry")> _
        Public Entries As List(Of Entry)
    End Class

    Public Class Entry
        <JsonProperty("key")> _
        Public Key As String
        <JsonProperty("value")> _
        Public Value As Value
    End Class

    Public Class Value
        <JsonProperty("creneaux")> _
        Public ListCreneaux As List(Of Creneau)
    End Class

    Public Class Creneau
        <JsonProperty("@jour")> _
        Public Jour As String
        <JsonProperty("@heure")> _
        Public Heure As String
        <JsonProperty("@minute")> _
        Public Minute As String
        <JsonProperty("nomberRessources")> _
        Public NombreRessources As Integer
    End Class

    Const JSON As String = "{" & vbCrLf & _
"    ""plannifReponse"":" & vbCrLf & _
"{""@competence"":""Abonnement"",""plannifDonnees"":" & vbCrLf & _
"{""entry"":" & vbCrLf & _
"[" & vbCrLf & _
"{""key"":""2013-8-11T00:00"",""value"":" & vbCrLf & _
"{""creneaux"":" & vbCrLf & _
"[" & vbCrLf & _
"{""@jour"":""2013-8-11T00:00"",""@heure"":""09"",""@minute"":""30"",""nombreRessources"":10}," & vbCrLf & _
"{""@jour"":""2013-8-11T00:00"",""@heure"":""10"",""@minute"":""30"",""nombreRessources"":2}," & vbCrLf & _
"{""@jour"":""2013-8-11T00:00"",""@heure"":""17"",""@minute"":""30"",""nombreRessources"":5}," & vbCrLf & _
"{""@jour"":""2013-8-11T00:00"",""@heure"":""20"",""@minute"":""30"",""nombreRessources"":5}," & vbCrLf & _
"{""@jour"":""2013-8-11T00:00"",""@heure"":""21"",""@minute"":""00"",""nombreRessources"":16}" & vbCrLf & _
"]" & vbCrLf & _
"}" & vbCrLf & _
"}," & vbCrLf & _
"{""key"":""2013-7-30T00:00"",""value"":" & vbCrLf & _
"{""creneaux"":" & vbCrLf & _
"[{""@jour"":""2013-7-30T00:00"",""@heure"":""12"",""@minute"":""00"",""nombreRessources"":4},{""@jour"":""2013-7-30T00:00"",""@heure"":""12"",""@minute"":""15"",""nombreRessources"":10},{""@jour"":""2013-7-30T00:00"",""@heure"":""12"",""@minute"":""30"",""nombreRessources"":3},{""@jour"":""2013-7-30T00:00"",""@heure"":""14"",""@minute"":""00"",""nombreRessources"":8},{""@jour"":""2013-7-30T00:00"",""@heure"":""18"",""@minute"":""30"",""nombreRessources"":10}]}}]}}}"

    Public Shared Sub Test()
        Dim output As OutputPlannif
        output = JsonConvert.DeserializeObject(Of OutputPlannif)(JSON)
        Console.WriteLine(output)
    End Sub
End Class