我有这种表:
我需要获得这个JSON(当然命令可以是任何,结构/树是最重要的):
数据表可以更改,因此序列化应该是动态的.我正在使用vb.net并使用此代码:
Public Function GetJson() As String Dim dt As New System.Data.DataTable dt = CreateDataTable() 'here I retrive data from oracle DB Dim serializer As New System.Web.Script.Serialization.JavaScriptSerializer() Dim packet As New List(Of Dictionary(Of String,Object))() Dim row As Dictionary(Of String,Object) = Nothing For Each dr As DataRow In dt.Rows row = New Dictionary(Of String,Object)() For Each dc As DataColumn In dt.Columns row.Add(dc.ColumnName.Trim(),dr(dc)) Next packet.Add(row) Next Return serializer.Serialize(packet) End Function
但是这段代码给我带来了不好的json:[{“NAME”:“city”,“PARENT”:“address”,“VALUE”:“have child”},{“NAME”:“coordinates”,“PARENT”:“地址“,”VALUE“:”有孩子“},{”NAME“:”街道“,”父母“:”地址“,”VALUE“:”有孩子“} …….
有人可以帮助我吗?
‘哦 – 不,你没有’版本:
Public Function GetJson(ByVal dt As DataTable) As String Return New JavaScriptSerializer().Serialize(From dr As DataRow In dt.Rows Select dt.Columns.Cast(Of DataColumn)().ToDictionary(Function(col) col.ColumnName,Function(col) dr(col))) End Function