【问题标题】:How can I extract the distance from Google Directions API via Excel web query?如何通过 Excel 网络查询从 Google Directions API 中提取距离?
【发布时间】:2012-08-24 18:34:42
【问题描述】:
【问题讨论】:
标签:
excel
api
vba
distance
【解决方案1】:
简短的回答是XPath - 如果您要使用任何类型的 XML,都值得学习
在 Excel 的宏编辑器中,转到工具 > 引用并添加对“Microsoft XML,v6.0”的引用,现在插入 > 模块并添加以下代码:
Sub getDistances()
Dim xhrRequest As XMLHTTP60
Dim domDoc As DOMDocument60
Dim ixnlDistanceNodes As IXMLDOMNodeList
Dim ixnNode As IXMLDOMNode
Dim lOutputRow As Long
' Read the data from the website
Set xhrRequest = New XMLHTTP60
xhrRequest.Open "GET", "http://maps.googleapis.com/maps/api/directions/xml?origin=Scoresby&destination=Melborne&sensor=false", False
xhrRequest.send
' Copy the results into a format we can manipulate with XPath
Set domDoc = New DOMDocument60
domDoc.loadXML xhrRequest.responseText
' The important bit: select every node called "value" which is the child of a node called "distance" which is
' in turn the child of a node called "step"
Set ixnlDistanceNodes = domDoc.selectNodes("//step/distance/value")
' Basic stuff to output the distances
lOutputRow = 1
With Worksheets("Sheet1")
.UsedRange.ClearContents
For Each ixnNode In ixnlDistanceNodes
.Cells(lOutputRow, 1).Value = ixnNode.Text
lOutputRow = lOutputRow + 1
Next ixnNode
End With
Set ixnNode = Nothing
Set ixnlDistanceNodes = Nothing
Set domDoc = Nothing
Set xhrRequest = Nothing
End Sub
要将其扩展为涵盖多次旅行,您只需遍历所需的起点和目的地,将每一对作为参数传递给此过程,然后以您需要的任何格式输出结果