使用XSLT合并基于属性值的2个XML文件? [英] Merge 2 XML files based on attribute values using XSLT?

问题描述

<config>
 <state version="10">
  <root value="100" group="5">
     <leaf number = "2"/>
  </root>
  <root value="101" group="6">
     <leaf number = "3"/>
  </root>
 </state>
</config>

file2.xml

<config>
 <state version="10">
  <root value="100" group="5">
     <leaf number = "6"/>
  </root>
  <root value="101" group="6">
     <leaf number = "4"/>
  </root>
 </state>
</config>

output.xml

<config>
 <state version="10">
  <root value="100" group="5">
     <leaf number = "2"/>
     <leaf number = "6"/>
  </root>
  <root value="101" group="6">
     <leaf number = "3"/>
     <leaf number = "4"/>
  </root>
 </state>
</config>

我尝试根据此处的答案编写XSLT: 如何合并2个XML文件使用XSLT的普通节点?

I tried writing an XSLT based on the answer here: How to merge 2 XML files with common nodes using XSLT?

但是我不知道如何根据属性值进行比较(在这种情况下，属性值和'root'标签的组比较?有人可以帮忙吗?

but I do not know how to compare based on attribute values (in this case, attributes value and group of 'root' tag? Can someone please help?

推荐答案

这应该做到:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output indent="yes" omit-xml-declaration="yes"/>

  <xsl:template match="@*|node()">
    <xsl:copy>
      <xsl:apply-templates select="@*|node()" />
    </xsl:copy>
  </xsl:template>

  <xsl:template match="root">
    <xsl:copy>
      <xsl:apply-templates select="@* | node()" />
      <xsl:apply-templates
        select="document('file2.xml')
              /config/state[@version = current()/../@version]
                     /root[@value = current()/@value and
                           @group = current()/@group]/*" />
    </xsl:copy>
  </xsl:template>

</xsl:stylesheet>

以您的file1.xml示例作为主要输入运行时，将产生:

When run with your file1.xml example as the main input, this produces:

<config>
  <state version="10">
    <root value="100" group="5">
      <leaf number="2" />
      <leaf number="6" />
    </root>
    <root value="101" group="6">
      <leaf number="3" />
      <leaf number="4" />
    </root>
  </state>
</config>

这篇关于使用XSLT合并基于属性值的2个XML文件?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！