Uw advertentie kan hier zijn


Hoe kan XML ontleden met VBA

stemmen
62

Ik werk in VBA, en je wilt naar een string bv ontleden

<PointN xsi:type='typens:PointN' 
xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' 
xmlns:xs='http://www.w3.org/2001/XMLSchema'>
    <X>24.365</X>
    <Y>78.63</Y>
</PointN>

en ontvang de X en Y-waarden in twee integer variabelen.

Ik ben een newbie als het gaat om XML, want ik ben vast in VB6 en VBA, als gevolg van het veld Ik werk in.

Hoe doe ik dit?

De vraag is gesteld op 14/08/2008 om 17:41
Bron van user Devdatta Tengshe
In andere talen ...        العربية   

9 antwoorden

stemmen
65

Bedankt voor de tips.

Ik weet niet of dit de beste aanpak van het probleem of niet, maar hier is hoe ik het aan het werk. Ik verwezen de Microsoft XML, v2.6 dll in mijn VBA, en dan de volgende code fragment geeft me de gewenste waarden

Dim objXML As MSXML2.DOMDocument

    Set objXML = New MSXML2.DOMDocument

    If Not objXML.loadXML(strXML) Then  'strXML is the string with XML'
        Err.Raise objXML.parseError.ErrorCode, , objXML.parseError.reason
    End If

Dim point As IXMLDOMNode
Set point = objXML.firstChild

Debug.Print point.selectSingleNode("X").Text
Debug.Print point.selectSingleNode("Y").Text
antwoordde op 14/08/2008 om 18:40
Bron van user Devdatta Tengshe


Uw advertentie kan hier zijn


stemmen
49

Dit is een beetje een ingewikkelde vraag, maar het lijkt erop dat de meest directe route zou zijn om de XML-document of XML-reeks via MSXML2.DOMDocument die dan zal u toelaten om toegang te krijgen tot de XML-nodes te laden.

U kunt meer over MSXML2.DOMDocument vinden op de volgende sites:

antwoordde op 14/08/2008 om 17:47
Bron van user rjzii

stemmen
9

Voeg verwijzing Project-> Referenties Microsoft XML, 6.0 en u kunt bijvoorbeeld code te gebruiken:

    Dim xml As String

    xml = "<root><person><name>Me </name> </person> <person> <name>No Name </name></person></root> "
    Dim oXml As MSXML2.DOMDocument60
    Set oXml = New MSXML2.DOMDocument60
    oXml.loadXML xml
    Dim oSeqNodes, oSeqNode As IXMLDOMNode

    Set oSeqNodes = oXml.selectNodes("//root/person")
    If oSeqNodes.length = 0 Then
       'show some message
    Else
        For Each oSeqNode In oSeqNodes
             Debug.Print oSeqNode.selectSingleNode("name").Text
        Next
    End If 

wees voorzichtig met XML-node // Root / persoon is niet hetzelfde met // root / persoon, ook SelectSingleNode ( "Naam"). tekst is niet hetzelfde met SelectSingleNode ( "naam"). text

antwoordde op 13/10/2015 om 13:29
Bron van user No Name

stemmen
7

Dit is een voorbeeld OPML parser werken met FeedDemon OPML-bestanden:

Sub debugPrintOPML()

' http://msdn.microsoft.com/en-us/library/ms763720(v=VS.85).aspx
' http://msdn.microsoft.com/en-us/library/system.xml.xmlnode.selectnodes.aspx
' http://msdn.microsoft.com/en-us/library/ms256086(v=VS.85).aspx ' expressions
' References: Microsoft XML

Dim xmldoc As New DOMDocument60
Dim oNodeList As IXMLDOMSelection
Dim oNodeList2 As IXMLDOMSelection
Dim curNode As IXMLDOMNode
Dim n As Long, n2 As Long, x As Long

Dim strXPathQuery As String
Dim attrLength As Byte
Dim FilePath As String

FilePath = "rss.opml"

xmldoc.Load CurrentProject.Path & "\" & FilePath

strXPathQuery = "opml/body/outline"
Set oNodeList = xmldoc.selectNodes(strXPathQuery)

For n = 0 To (oNodeList.length - 1)
    Set curNode = oNodeList.Item(n)
    attrLength = curNode.Attributes.length
    If attrLength > 1 Then ' or 2 or 3
        Call processNode(curNode)
    Else
        Call processNode(curNode)
        strXPathQuery = "opml/body/outline[position() = " & n + 1 & "]/outline"
        Set oNodeList2 = xmldoc.selectNodes(strXPathQuery)
        For n2 = 0 To (oNodeList2.length - 1)
            Set curNode = oNodeList2.Item(n2)
            Call processNode(curNode)
        Next
    End If
        Debug.Print "----------------------"
Next

Set xmldoc = Nothing

End Sub

Sub processNode(curNode As IXMLDOMNode)

Dim sAttrName As String
Dim sAttrValue As String
Dim attrLength As Byte
Dim x As Long

attrLength = curNode.Attributes.length

For x = 0 To (attrLength - 1)
    sAttrName = curNode.Attributes.Item(x).nodeName
    sAttrValue = curNode.Attributes.Item(x).nodeValue
    Debug.Print sAttrName & " = " & sAttrValue
Next
    Debug.Print "-----------"

End Sub

Deze neemt multilevel bomen van mappen (Awasu, NewzCrawler):

...
Call xmldocOpen4
Call debugPrintOPML4(Null)
...

Dim sText4 As String

Sub debugPrintOPML4(strXPathQuery As Variant)

Dim xmldoc4 As New DOMDocument60
'Dim xmldoc4 As New MSXML2.DOMDocument60 ' ?
Dim oNodeList As IXMLDOMSelection
Dim curNode As IXMLDOMNode
Dim n4 As Long

If IsNull(strXPathQuery) Then strXPathQuery = "opml/body/outline"

' http://msdn.microsoft.com/en-us/library/ms754585(v=VS.85).aspx
xmldoc4.async = False
xmldoc4.loadXML sText4
If (xmldoc4.parseError.errorCode <> 0) Then
   Dim myErr
   Set myErr = xmldoc4.parseError
   MsgBox ("You have error " & myErr.reason)
Else
'   MsgBox xmldoc4.xml
End If

Set oNodeList = xmldoc4.selectNodes(strXPathQuery)

For n4 = 0 To (oNodeList.length - 1)
    Set curNode = oNodeList.Item(n4)
    Call processNode4(strXPathQuery, curNode, n4)
Next

Set xmldoc4 = Nothing

End Sub

Sub processNode4(strXPathQuery As Variant, curNode As IXMLDOMNode, n4 As Long)

Dim sAttrName As String
Dim sAttrValue As String
Dim x As Long

For x = 0 To (curNode.Attributes.length - 1)
    sAttrName = curNode.Attributes.Item(x).nodeName
    sAttrValue = curNode.Attributes.Item(x).nodeValue
    'If sAttrName = "text"
    Debug.Print strXPathQuery & " :: " & sAttrName & " = " & sAttrValue
    'End If
Next
    Debug.Print ""

If curNode.childNodes.length > 0 Then
    Call debugPrintOPML4(strXPathQuery & "[position() = " & n4 + 1 & "]/" & curNode.nodeName)
End If

End Sub

Sub xmldocOpen4()

Dim oFSO As New FileSystemObject ' Microsoft Scripting Runtime Reference
Dim oFS
Dim FilePath As String

FilePath = "rss_awasu.opml"
Set oFS = oFSO.OpenTextFile(CurrentProject.Path & "\" & FilePath)
sText4 = oFS.ReadAll
oFS.Close

End Sub

of beter:

Sub xmldocOpen4()

Dim FilePath As String

FilePath = "rss.opml"

' function ConvertUTF8File(sUTF8File):
' http://www.vbmonster.com/Uwe/Forum.aspx/vb/24947/How-to-read-UTF-8-chars-using-VBA
' loading and conversion from Utf-8 to UTF
sText8 = ConvertUTF8File(CurrentProject.Path & "\" & FilePath)

End Sub

maar ik begrijp niet, waarom xmldoc4 telkens moet worden geladen.

antwoordde op 09/05/2010 om 03:19
Bron van user DK.

stemmen
6

U kunt een XPath Query:

Dim objDom As Object        '// DOMDocument
Dim xmlStr As String, _
    xPath As String

xmlStr = _
    "<PointN xsi:type='typens:PointN' " & _
    "xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' " & _
    "xmlns:xs='http://www.w3.org/2001/XMLSchema'> " & _
    "    <X>24.365</X> " & _
    "    <Y>78.63</Y> " & _
    "</PointN>"

Set objDom = CreateObject("Msxml2.DOMDocument.3.0")     '// Using MSXML 3.0

'/* Load XML */
objDom.LoadXML xmlStr

'/*
' * XPath Query
' */        

'/* Get X */
xPath = "/PointN/X"
Debug.Print objDom.SelectSingleNode(xPath).text

'/* Get Y */
xPath = "/PointN/Y"
Debug.Print objDom.SelectSingleNode(xPath).text
antwoordde op 30/12/2014 om 11:24
Bron van user mvanle

stemmen
2

Hier is een korte sub naar een MicroStation TriForma XML-bestand dat gegevens bevat voor constructiestaal vormen ontleden.

'location of triforma structural files
'c:\programdata\bentley\workspace\triforma\tf_imperial\data\us.xml

Sub ReadTriformaImperialData()
Dim txtFileName As String
Dim txtFileLine As String
Dim txtFileNumber As Long

Dim Shape As String
Shape = "w12x40"

txtFileNumber = FreeFile
txtFileName = "c:\programdata\bentley\workspace\triforma\tf_imperial\data\us.xml"

Open txtFileName For Input As #txtFileNumber

Do While Not EOF(txtFileNumber)
Line Input #txtFileNumber, txtFileLine
    If InStr(1, UCase(txtFileLine), UCase(Shape)) Then
        P1 = InStr(1, UCase(txtFileLine), "D=")
        D = Val(Mid(txtFileLine, P1 + 3))

        P2 = InStr(1, UCase(txtFileLine), "TW=")
        TW = Val(Mid(txtFileLine, P2 + 4))

        P3 = InStr(1, UCase(txtFileLine), "WIDTH=")
        W = Val(Mid(txtFileLine, P3 + 7))

        P4 = InStr(1, UCase(txtFileLine), "TF=")
        TF = Val(Mid(txtFileLine, P4 + 4))

        Close txtFileNumber
        Exit Do
    End If
Loop
End Sub

Vanaf hier kunt u de waarden te gebruiken om de vorm in MicroStation 2D tekenen of doe het in 3D en extruderen tot een vaste stof.

antwoordde op 12/01/2015 om 18:30
Bron van user Bob Wheatley

stemmen
0

Vaak is het makkelijker om te ontleden zonder VBA, als je niet wilt macro's in te schakelen. Dit kan worden gedaan met de vervanging van de functie. Vul uw begin- en eindpunt nodes in cellen B1 en C1.

Cell A1: {your XML here}
Cell B1: <X>
Cell C1: </X>
Cell D1: =REPLACE(A1,1,FIND(A2,A1)+LEN(A2)-1,"")
Cell E1: =REPLACE(A4,FIND(A3,A4),LEN(A4)-FIND(A3,A4)+1,"")

En het resultaat lijn E1 zal uw ontleed waarde:

Cell A1: {your XML here}
Cell B1: <X>
Cell C1: </X>
Cell D1: 24.365<X><Y>78.68</Y></PointN>
Cell E1: 24.365
antwoordde op 30/11/2016 om 22:13
Bron van user TJ Wilkinson

stemmen
0

Bijwerken

De onderstaande procedure gepresenteerd geeft een voorbeeld van het ontleden van XML met VBA met behulp van de XML DOM-objecten. Code is gebaseerd op een beginners gids van de XML DOM .

Public Sub LoadDocument()
Dim xDoc As MSXML.DOMDocument
Set xDoc = New MSXML.DOMDocument
xDoc.validateOnParse = False
If xDoc.Load("C:\My Documents\sample.xml") Then
   ' The document loaded successfully.
   ' Now do something intersting.
   DisplayNode xDoc.childNodes, 0
Else
   ' The document failed to load.
   ' See the previous listing for error information.
End If
End Sub

Public Sub DisplayNode(ByRef Nodes As MSXML.IXMLDOMNodeList, _
   ByVal Indent As Integer)

   Dim xNode As MSXML.IXMLDOMNode
   Indent = Indent + 2

   For Each xNode In Nodes
      If xNode.nodeType = NODE_TEXT Then
         Debug.Print Space$(Indent) & xNode.parentNode.nodeName & _
            ":" & xNode.nodeValue
      End If

      If xNode.hasChildNodes Then
         DisplayNode xNode.childNodes, Indent
      End If
   Next xNode
End Sub

Nota Bene - Deze eerste antwoord laat de eenvoudigst mogelijke wat ik kon voorstellen (op het moment was ik bezig met een zeer specifieke kwestie). Natuurlijk met behulp van de XML-installaties ingebouwd in de VBA XML Dom zou veel beter zijn. Zie bovenstaande updates.

originele Response

Ik weet dat dit een zeer oude post, maar ik wilde mijn eenvoudige oplossing voor deze ingewikkelde kwestie te delen. In de eerste plaats heb ik basis snaar functies die gebruikt worden voor toegang tot de XML-gegevens.

Dit veronderstelt u een aantal xml-data (in de temp variabele) die is teruggekeerd binnen een VBA-functie. Interessant genoeg kan men ook zien hoe ik koppelen aan een xml-web service om de waarde te halen. De in de beeldfunctie neemt een zoekwaarde omdat Excel VBA functie is toegankelijk vanuit een cel met behulp FunctionName = (waarde1, waarde2) waarden terugvoer via de webservice in een spreadsheet.

voorbeeld van de functie


openTag = "<" & tagValue & ">"
closeTag = "< /" & tagValue & ">" 

' Locate the position of the enclosing tags startPos = InStr(1, temp, openTag) endPos = InStr(1, temp, closeTag) startTagPos = InStr(startPos, temp, ">") + 1 ' Parse xml for returned value Data = Mid(temp, startTagPos, endPos - startTagPos)

antwoordde op 21/04/2011 om 17:30
Bron van user Tommie C.

stemmen
-9

XML parseercode

Option Explicit
    Dim Path As String ' input path name
    Dim FileName As String ' input file name
    Dim intColumnCount As Integer ' column counter
    Dim intLoop As Integer ' Looping integer
    Dim objDictionary As Scripting.Dictionary ' dictionary object to store column identification for id, method, query string etc
    Dim intPrevRequest_id As Integer 'stores previous request id
    Dim intCurrRequest_id As Integer 'stores current request id

    Dim strWholeReq As String ' Full request that is ready to be written to file
    Dim strStartQuotes As String ' Placeholder which holds starting double quotes
    Dim strEndQuotes As String ' Placeholder which holds ending double quotes
    Dim strStepName As String ' First line of the Parsed_XML_Function. e.g. Parsed_XML_Function("Step5",
    'Here 5 comes from intStepNum variable

    Dim strUrl As String ' contains URL and Query string
    Dim strQueryStr As String ' Query string
    Dim strMethod As String ' Method part of request
    Dim strBody As String 'Body attributes
    Dim strMisc As String ' Misc items such as Resource, Snapshot number etc
    Dim strContentType As String ' Content type of request
    Dim intStepNum As Integer ' iterative count to identify step
    Dim objFileSys As Scripting.FileSystemObject ' file system object
    Dim objFile As Scripting.File 'file object
    Dim objTextStr As Scripting.TextStream 'text stream object
    Dim ActionFileName As String ' destination action name
'this funciton is the main function which calls other functions
Sub Main()

    Path = Worksheets(1).Cells(1, 2).Value
    FileName = Worksheets(1).Cells(2, 2).Value
    ActionFileName = Worksheets(1).Cells(3, 2).Value
    'open xml file
    Workbooks.Open FileName:=Path & "\" & FileName
    'activate the workbook
    Windows(FileName).Activate

    'delete first row
    Rows("1:1").Select
    Selection.Delete Shift:=xlUp
    Range(Selection, Selection.End(xlToRight)).Select
    ActiveSheet.Name = "PARSINGVS_XML"

    'get total columns and analyze the columns
    intColumnCount = Worksheets("PARSINGVS_XML").UsedRange.Columns.Count
    Set objDictionary = New Dictionary

    intLoop = 1
    For intLoop = 1 To intColumnCount
        If InStr(1, Worksheets("PARSINGVS_XML").Cells(1, intLoop), "Request/#id", 1) > 0 Then
            objDictionary.Add "Req_id", intLoop

         ElseIf InStr(1, Worksheets("PARSINGVS_XML").Cells(1, intLoop), "Request/@Method", 1) > 0 Then
            objDictionary.Add "Req_method", intLoop

         ElseIf InStr(1, Worksheets("PARSINGVS_XML").Cells(1, intLoop), "Request/@Url", 1) > 0 Then
            objDictionary.Add "Req_url", intLoop

         ElseIf InStr(1, Worksheets("PARSINGVS_XML").Cells(1, intLoop), "FormPostHttpBody/@ContentType", 1) > 0 Then
            objDictionary.Add "Req_contenttype", intLoop

         ElseIf InStr(1, Worksheets("PARSINGVS_XML").Cells(1, intLoop), "FormPostParameter/@Name", 1) > 0 Then
            objDictionary.Add "Req_itemdata_name", intLoop

         ElseIf InStr(1, Worksheets("PARSINGVS_XML").Cells(1, intLoop), "FormPostParameter/@Value", 1) > 0 Then
            objDictionary.Add "Req_itemdata_value", intLoop

        ElseIf InStr(1, Worksheets("PARSINGVS_XML").Cells(1, intLoop), "QueryStringParameter/@Name", 1) > 0 Then
            objDictionary.Add "Req_querystring_name", intLoop

        ElseIf InStr(1, Worksheets("PARSINGVS_XML").Cells(1, intLoop), "QueryStringParameter/@Value", 1) > 0 Then
            objDictionary.Add "Req_querystring_value", intLoop
        End If
    Next

    'Loop through all requests and capture querysting, itemdata, url, method, action and content type
    '-----------------------------------------------
    'Initialize variables ot default value at start
    '-----------------------------------------------
    intPrevRequest_id = 1
    intCurrRequest_id = 1
    strStartQuotes = """"
    strEndQuotes = """," & vbCrLf
    intStepNum = 1
    strQueryStr = ""
    strBody = ""

    Set objFileSys = New Scripting.FileSystemObject
    objFileSys.CreateTextFile (Path & "\" & ActionFileName)
    Set objFile = objFileSys.GetFile(Path & "\" & ActionFileName)
    Set objTextStr = objFile.OpenAsTextStream(ForAppending, TristateUseDefault)

    intLoop = 2 'first line is the header
    For intLoop = 2 To Worksheets("PARSINGVS_XML").UsedRange.Rows.Count
        If objDictionary.Exists("Req_id") Then
            intCurrRequest_id = Trim(Worksheets("PARSINGVS_XML").Cells(intLoop, objDictionary("Req_id")).Value)
        Else
            MsgBox "XML do nto contain Request id column"
            Exit Sub
        End If

        'if current and previous request id are not same OR we are at end of steps the write to file
        If (intPrevRequest_id <> intCurrRequest_id) Or (intLoop = Worksheets("PARSINGVS_XML").UsedRange.Rows.Count) Then
            Call WriteToFile
            'iterate to next step
            intStepNum = intStepNum + 1
            strQueryStr = ""
            strBody = ""
            intPrevRequest_id = intCurrRequest_id
        End If

        Call Write_Remaining_DESTINATIONVS_Req ' build the DESTINATIONVS request apart from Body & Query string
        Call WriteQuery_Body 'build hte body and querystring
    Next
    MsgBox "Completed"
    Set objDictionary = Nothing
    objTextStr.Close

    Set objTextStr = Nothing
    Set objFile = Nothing
    Set objFileSys = Nothing
    Windows(FileName).Close (False)
End Sub
'funciton to write contents to file
Sub WriteToFile()

    strWholeReq = strWholeReq & vbCrLf & strStepName & strUrl

    If strQueryStr <> "" Then
        strWholeReq = strWholeReq & "?" & strQueryStr
    End If

    strWholeReq = strWholeReq & strEndQuotes & strMethod & strContentType & strMisc

    If strBody <> "" Then
        strWholeReq = strWholeReq & strStartQuotes & "Body=" & strBody & strEndQuotes
    End If

    strWholeReq = strWholeReq & " LAST);" & vbCrLf

    objTextStr.WriteLine strWholeReq

    strWholeReq = ""
End Sub
'function to build the querystring and body part which are iterative
Sub WriteQuery_Body()
    If objDictionary.Exists("Req_querystring_name") Then
        If Trim(Worksheets("PARSINGVS_XML").Cells(intLoop, objDictionary("Req_querystring_name")).Value) <> "" Then
            If strQueryStr <> "" Then
                strQueryStr = strQueryStr & "&"
            End If
            'Querystring
            strQueryStr = strQueryStr & Trim(Worksheets("PARSINGVS_XML").Cells(intLoop, objDictionary("Req_querystring_name")).Value) & "=" & _
               Trim(Worksheets("PARSINGVS_XML").Cells(intLoop, objDictionary("Req_querystring_value")).Value)
        End If
    End If
    If objDictionary.Exists("Req_itemdata_name") Then
        If Trim(Worksheets("PARSINGVS_XML").Cells(intLoop, objDictionary("Req_itemdata_name")).Value) <> "" Then
            If strBody <> "" Then
                strBody = strBody & "&"
            End If
            'Body
            strBody = strBody & Trim(Worksheets("PARSINGVS_XML").Cells(intLoop, objDictionary("Req_itemdata_name")).Value) & "=" & _
               Trim(Worksheets("PARSINGVS_XML").Cells(intLoop, objDictionary("Req_itemdata_value")).Value)
        End If
    End If
End Sub
'function which creates remaining part of web_custom request other than querystring and body
Sub Write_Remaining_DESTINATIONVS_Req()
    'Name of Parsed_XML_Function("Step2",
    strStepName = "Parsed_XML_Function(" & strStartQuotes & "Step" & intStepNum & strEndQuotes

    If objDictionary.Exists("Req_url") Then
        '"URL = "
        strUrl = strStartQuotes & _
        "URL=" & Trim(Worksheets("PARSINGVS_XML").Cells(intLoop, objDictionary("Req_url")).Value)
    End If

    If objDictionary.Exists("Req_method") Then
        'Method =
        strMethod = strStartQuotes & _
        "Method=" & Trim(Trim(Worksheets("PARSINGVS_XML").Cells(intLoop, objDictionary("Req_method")).Value)) & strEndQuotes
    End If

    If objDictionary.Exists("Req_contenttype") Then
        'ContentType =
        If Trim(Trim(Worksheets("PARSINGVS_XML").Cells(intLoop, objDictionary("Req_contenttype")).Value)) <> "" Then
        strContentType = strStartQuotes & _
        "RecContentType=" & Trim(Trim(Worksheets("PARSINGVS_XML").Cells(intLoop, objDictionary("Req_contenttype")).Value)) & strEndQuotes
        Else
           strContentType = strStartQuotes & "RecContentType=text/html" & strEndQuotes
        End If
    Else
        strContentType = strStartQuotes & "RecContentType=text/html" & strEndQuotes
    End If
    'remaining all
    strMisc = strStartQuotes & "TargetFrame=" & strEndQuotes & _
         strStartQuotes & "Resource=0" & strEndQuotes & _
         strStartQuotes & "Referer=" & strEndQuotes & _
         strStartQuotes & "Mode=HTML" & strEndQuotes & _
         strStartQuotes & "Snapshot=t" & intStepNum & ".inf" & strEndQuotes
End Sub
antwoordde op 02/10/2013 om 16:56
Bron van user Vinit sachdeva