我正在尝试在VBA for Excel中解析返回的数据服务文件,尽管我已审查了类似问题的几个有用答案,但似乎没有一个能让SelectSingleNode为我返回任何东西。
XML文件很大,但是包装器节点如下:
<?xml version="1.0" encoding="utf-8"?>
<feed xml:base="https://___.bpmonline.com/0/ServiceModel/EntityDataService.svc/" xmlns="http://www.w3.org/2005/Atom" xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
<title type="text">labQuoteCollection</title>
...
</feed>
我的相关VBA代码在这里(我想知道其中某些属性是多余的,只是想确定一下):
Dim NS As String
NS = "xmlns:a=""http://www.w3.org/2005/Atom"" xmlns:d=""http://schemas.microsoft.com/ado/2007/08/dataservices"" xmlns:m=""http://schemas.microsoft.com/ado/2007/08/dataservices/metadata"""
Dim QuoteData As String
Dim oXMLReq As New WinHttp.WinHttpRequest
Dim oXMLDoc As New MSXML2.DOMDocument60
With oXMLHTTP
.Open "GET", DataURL, False
.setRequestHeader "Cookie", AuthCookie
.send
QuoteData = .responseXML.XML
oXMLDoc.LoadXML QuoteData
oXMLDoc.setProperty "SelectionLanguage", "XPath"
oXMLDoc.setProperty "SelectionNamespaces", NS
oXMLDoc.resolveExternals = True
Debug.Print (oXMLDoc.parseError.ErrorCode)
Debug.Print oXMLDoc.XML
Dim Quotes As IXMLDOMNode
Quotes = oXMLDoc.SelectSingleNode("//a:feed")
If Quotes Is Nothing Then
Debug.Print "fail"
End If
End With
我可以看到XML毫无错误地加载到了oXMLDoc中,并且Print语句完整地输出了它,但是我尝试过的XPath查询都没有返回任何内容。我在该主题上看到的其他问题表明上述查询正确无误。我可能还缺少其他东西吗?
答案 0 :(得分:0)
myproject
应该是
Quotes = oXMLDoc.SelectSingleNode("//a:feed")
该错误消息具有误导性,因为它似乎表明未找到xpath目标,但是如果发生这种情况,则不会引发错误,它只会返回Set Quotes = oXMLDoc.SelectSingleNode("//a:feed")