ADO Recordset 持久化格式 XML 读取保存

ADO Recordset 持久化格式 XML 读取保存

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--- ADO Recordset 持久化格式 XML 读取保存 (http://www.webasp.net/article/17/16707.htm)

-- 作者：未知
-- 发布日期： 2005-02-28

<%
Class DataSet
Private Recordset
Public TableName, FieldCount
Public XmlString

Private TableMap

Private Sub Class_Initialize ' 设置 Initialize 事件。
Set Recordset = Server.CreateObject("ADODB.RecordSet")
Recordset.ActiveConnection = "Provider=MSDAOSP; Data Source=Msxml2.DSOControl;"
End Sub

Private Sub Class_Terminate ' 设置 Terminate 事件。
Set Recordset = Nothing
End Sub

Function ReadXml(Name, filespec)
TableName = Name
Recordset.Open(filespec)
End Function

Function GetXml()
Call GetTableMap()
Do While not Recordset.Eof
XmlString = XmlString + GetXmlRow(Recordset.Fields)
Recordset.MoveNext()
Loop
Recordset.Close
XmlString = XmlRow(TableName, XmlString)
GetXml = XmlString

End Function

Sub GetTableMap()
IF (not Recordset.Eof) Then
FieldCount = Recordset.Fields.Count - 2
Execute("ReDim TableMap("& FieldCount &")")
For i = 0 To FieldCount
TableMap(i) = Recordset.Fields.Item(i).Name
Next
End IF
End Sub

Function GetXmlRow(Item)
Dim XmlRowString
For i = 0 To FieldCount
XmlRowString = XmlRowString + XmlField(TableMap(i), Item(i).Value)
Next
GetXmlRow = XmlRow("Row", XmlRowString)
End Function

Function XMlEncode(XmlString)
XmlString = Replace(XmlString, "<", "<")
XmlString = Replace(XmlString, ">", ">")
XMlEnCode = XmlString
End Function

Function XmlField(NodeName, NodeValue)
XmlField = "<"+ NodeName +">"+ XMlEncode(NodeValue) +"</"+ NodeName +">"
End Function

Function XmlRow(NodeName, NodeValue)
XmlRow = "<"+ NodeName +">"+ NodeValue +"</"+ NodeName +">"
End Function

End Class

Dim ds : Set ds = new DataSet
Call ds.ReadXml( "News", Server.MapPath("news.xml") )

Response.ContentType = "text/xml"
Response.Write(ds.GetXml())

Set ds = Nothing
%>

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