VB.net JSON反序列化

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VB.net JSON反序列化

json

我有以下JSON字符串要反序列化：

[{"application_id":"1","application_package":"abc"},{"application_id":"2","application_package":"xyz"}]

我正在使用DataContractJsonSerializer方法。

它由项目数组组成，我找不到使用VB.Net可以反序列化此结构的示例。我具有以下Application类来存储此信息：

    <DataContract(Namespace:="")> _
    Public Class ApplicationItem

    <DataMember(Name:="application_id")>
    Public Property application_id As String

    <DataMember(Name:="application_package")>
    Public Property application_package As String

    End Class

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2020-07-27

共1个答案

小编典典

我建议你使用JavaScriptSerializer过DataContractJsonSerializer。原因如下：

JavaScriptSerializer 更快 DataContractJsonSerializer
DataContractJsonSerializer比JavaScriptSerializer简单的序列化需要更多的代码。

您无需将DataContractand DataMember属性与JavaScriptSerializer

使用此数据类

<Serializable> _
Public Class ApplicationItem
    Public Property application_id() As String
        Get
            Return m_application_id
        End Get
        Set
            m_application_id = Value
        End Set
    End Property
    Private m_application_id As String
    Public Property application_package() As String
        Get
            Return m_application_package
        End Get
        Set
            m_application_package = Value
        End Set
    End Property
    Private m_application_package As String
End Class

并使用它反序列化您的jsonText：

Dim jss As New JavaScriptSerializer()
Dim dict = jss.Deserialize(Of List(Of ApplicationItem))(jsonText)

如果仍要使用DataContractJsonSerializer，则可以使用以下代码反序列化：

Dim obj As New List(Of ApplicationItem)()
Dim ms As New MemoryStream(Encoding.Unicode.GetBytes(json))
Dim serializer As New System.Runtime.Serialization.Json.DataContractJsonSerializer(obj.[GetType]())
obj = DirectCast(serializer.ReadObject(ms), List(Of ApplicationItem))
ms.Close()
ms.Dispose()

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2020-07-27