VB.net使用JSON.net反序列化JSON [英] VB.net deserialize JSON with JSON.net

问题描述

自2周以来，我一直在寻找解决方案，但没有解决方案. 我想使用JSON.NET反序列化JSON，但还是要这么做……

I look for a solution to my problem since 2 weeks without solution. I would like to deserialize JSON with JSON.NET, but noway ...

我创建了类，但是当我反序列化对象时，它保持为空(无).

I create class but when i deserialize the object stay empty (Nothing).

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，我翻译该类:

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)

但是它不起作用，没有错误消息，但是保留为"Nothing"

But it doesn't work, no error message, but prev stay "Nothing"

为获得帮助，此处的源对象用于序列化(在Java上)

For help, here the source object use to serialise (it is on Java)

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;
}

如果有人有主意... 谢谢 马特

If anyone have an idea... Thanks Matt

推荐答案

您应创建一系列映射要反序列化的JSON的类.有一些工具(例如此类)可以为您完成此操作.或者，您也可以手动完成一次，一次只招募一名成员，结果如下所示:

You should create a series of classes which map the JSON you want to deserialize. There are tools (such as this one) which can do that for you. Or you can do it by hand, taking one member at a time, with the result shown below:

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

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