如何使用Access VBA导出到带有各种记录标题的XML?

时间:2015-07-27 17:49:15

标签: xml vba access-vba export

我正在使用Application.ExportXML编写代码,该代码将各种Access查询导出到单个XML文件。到目前为止我有代码并且它正在工作,但我想在将要导出的查询数据中标记每条记录。例如,我在XML文件中列出了一个名为“portOfCallList”的查询,但我希望每条记录都标记为“portOfCall”。现在一条记录看起来像这样:

- <portOfCallList>
    <arrivalDate>2015-07-17T00:00:00</arrivalDate> 
    <departureDate>2015-07-17T00:00:00</departureDate> 
    <portOfCallName>Southampton</portOfCallName> 
    <portOfCallCode>GBSOU</portOfCallCode> 
  </portOfCallList>

我希望它看起来像这样:

- <portOfCallList>
  - <portOfCall>
      <arrivalDate>2015-07-17T00:00:00</arrivalDate> 
      <departureDate>2015-07-17T00:00:00</departureDate> 
      <portOfCallName>Southampton</portOfCallName> 
      <portOfCallCode>GBSOU</portOfCallCode> 
    </portOfCall>
    'And then have various other records also labeled "portOfCall" before ending with
  </portOfCallList>.

这是我需要添加到代码中的唯一内容,因为其余的代码完成了我需要它做的事情。如果需要,我可以发布代码。

如果我能进一步解释,请告诉我,谢谢!

柯比

1 个答案:

答案 0 :(得分:1)

要设置xml文件的样式,您需要使用XSLT stylesheet。 XSL是一种用于转换xml文档的特殊用途声明性语言。

因此,根据MS Access的输出,您可以使用MS Access VBA将原始输出xml转换为所需的修改xml格式:

首先,将以下内容另存为.xsl文件:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output version="1.0" encoding="UTF-8"/>

<xsl:template match="/">
  <xsl:element name="portOfCallList"><xsl:text>&#xA;</xsl:text>

    <xsl:for-each select="//portOfCallList">      
      <xsl:element name="portOfCall"><xsl:text>&#xA;</xsl:text>
        <xsl:copy-of select="arrivalDate"/><xsl:text>&#xA;</xsl:text>
        <xsl:copy-of select="departureDate"/><xsl:text>&#xA;</xsl:text>
        <xsl:copy-of select="portOfCallName"/><xsl:text>&#xA;</xsl:text>
        <xsl:copy-of select="portOfCallCode"/><xsl:text>&#xA;</xsl:text>
      </xsl:element><xsl:text>&#xA;</xsl:text>    
    </xsl:for-each>

  </xsl:element><xsl:text>&#xA;</xsl:text>
</xsl:template>

</xsl:stylesheet>

其次,运行VBA:

Public Sub PortOfCallXML()
    Dim xmlfile As Object, xslfile As Object, newxmlfile As Object
    Dim xmlstr As String, xslstr As String, newxmlstr As String

    Set xmlfile = CreateObject("MSXML2.DOMDocument")
    Set xslfile = CreateObject("MSXML2.DOMDocument")
    Set newxmlfile = CreateObject("MSXML2.DOMDocument")

    xmlstr = "C:\Path\To\RawXMLFile.xml"     ' ORIGINAL OUTPUT
    xslstr = "C:\Path\To\XSLFile.xsl"        ' FROM ABOVE SCRIPT
    newxmlstr = "C:\Path\To\NewXMLFile.xml"  ' NEW TRANSFORMED FILE

    xmlfile.async = False
    xmlfile.Load xmlstr

    xslfile.async = False
    xslfile.Load xslstr
    xmlfile.transformNodeToObject xslfile, newxmlfile
    newxmlfile.Save newxmlstr

    Set xmlfile = Nothing
    Set xslfile = Nothing
    Set newxmlfile = Nothing

    MsgBox "XML File successfully transformed!", vbInformation, "XML Transform Successful"
End Sub

输出看起来像预期的那样(我重复发布的数据作为示例):

<?xml version="1.0" encoding="UTF-8"?>
<portOfCallList>
    <portOfCall>
        <arrivalDate>2015-07-17T00:00:00</arrivalDate>
        <departureDate>2015-07-17T00:00:00</departureDate>
        <portOfCallName>Southampton</portOfCallName>
        <portOfCallCode>GBSOU</portOfCallCode>
    </portOfCall>
    <portOfCall>
        <arrivalDate>2015-07-17T00:00:00</arrivalDate>
        <departureDate>2015-07-17T00:00:00</departureDate>
        <portOfCallName>Southampton</portOfCallName>
        <portOfCallCode>GBSOU</portOfCallCode>
    </portOfCall>
    ...
</portOfCallList>