Serializzare oggetti in JSON

Imports System.Runtime.Serialization.Json

Imports System.IO

Imports System.Text

Public NotInheritable Class SerializzatoreJSON(Of T As New)

    Private Sub New()

    End Sub

    Public Shared Function Serializza(ByVal oggetto As T) As String

        If oggetto Is Nothing Then Throw New ArgumentNullException("Oggetto non può essere null")

        Dim strJSON As String = Nothing

        Dim serializer = New DataContractJsonSerializer(GetType(T))

        Using memStream = New MemoryStream()

            serializer.WriteObject(memStream, oggetto)

            strJSON = Encoding.Default.GetString(memStream.ToArray())

        End Using

        Return strJSON

    End Function

    Public Shared Function Deserializza(ByVal strOggetto As String) As T

        Dim retObj As T

        Dim serializer = New DataContractJsonSerializer(GetType(T))

        Using memStream = New MemoryStream(Encoding.Default.GetBytes(strOggetto))

            retObj = CType(serializer.ReadObject(memStream), T)

        End Using

        Return retObj

    End Function

End Class

public sealed class SerializzatoreJSON<T>

    where T : new()

{

    private SerializzatoreJSON()

    {

    }

    public static string Serializza(T oggetto)

    {

        if (oggetto == null) throw new ArgumentNullException("Oggetto non può essere null");

        string strJSON = null;

        DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));

        using (MemoryStream memStream = new MemoryStream())

        {

            serializer.WriteObject(memStream, oggetto);

            strJSON = Encoding.Default.GetString(memStream.ToArray());

        }

        return strJSON;

    }

    public static T Deserializza(string strOggetto)

    {

        T retObj;

        DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));

        using (MemoryStream memStream = new MemoryStream(Encoding.Default.GetBytes(strOggetto)))

        {

            retObj = (T)serializer.ReadObject(memStream);

        }

        return retObj;

    }

}