json - VB.net JSON 反序列化

Question

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 可以反序列化该结构的示例。我有以下应用程序类来存储此信息:

    <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

Answer 1

以下是将 JSON 反序列化为对象的最简单方法(使用 .NET 4):

示例 JSON:

{
    "dogs":[],
    "chickens":[
        {
            "name":"Macey",
            "eggs":7
        }, 
        {
            "name":"Alfred",
            "eggs":2
        }
    ]
}

VB.NET:

Try
    Dim j As Object = New JavaScriptSerializer().Deserialize(Of Object)(JSONString)
    Dim a = j("dogs")                   ' returns empty Object() array
    Dim b = j("chickens")(0)            ' returns Dictionary(Of String, Object)
    Dim c = j("chickens")(0)("name")    ' returns String "Macey"
    Dim d = j("chickens")(1)("eggs")    ' returns Integer 2
Catch ex As Exception
    ' in case the structure of the object is not what we expected.
End Try