我试图使用XPath计数函数获取
XML文件中的特定节点数,但是,这会一直返回错误“类型的异常’msxml3.dll:Expression不返回DOM节点.”
如何使用VBScript和MSXML DOM从XPath计数中获取返回值
Dim oXML Dim homeId Dim awayId Dim homeGoals Dim awayGoals Set oXML = Server.CreateObject("Microsoft.XMLDOM") oXML.async = false oXML.SetProperty "SelectionLanguage","XPath" oXML.SetProperty "ServerHTTPRequest",True oXML.validateOnParse = False oXML.resolveExternals = False fileName = "http://server:8090/data/results/m12345.xml") oXML.load (fileName) homeId = oXML.SelectSingleNode("/SoccerMatch/Team[@homeOrAway='Home']/@id").text awayId = oXML.SelectSingleNode("/SoccerMatch/Team[@homeOrAway='Away']/@id").text Set homeGoals = oXML.SelectSingleNode("count(/SoccerMatch/Goals/Goal[@teamId="&homeId&"])") Set awayGoals = oXML.SelectSingleNode("count(/SoccerMatch/Goals/Goal[@teamId="&awayId&"])")
您只能使用在MSXML中返回节点的XPath,其他XPath函数只能用于最终导致选择节点的谓词.
使用:-
homeGoals = oXML.SelectNodes("/SoccerMatch/Goals/Goal[@teamId="&homeId&"]").length
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