使用 XSLT 从 xml 中删除所有节点，不包括特定节点 [英] Remove all nodes from xml excluding specific nodes using XSLT

问题描述

我有一堆 xml 文件，其中包含不同数量的数据节点，我想使用 XSLT 更改文件以仅包含特定节点.示例:

I have a bunch of xml files with a varying amount of data nodes in them and I want to change the files using XSLT to include only specific nodes. Example:

<?xml version="1.0" encoding="UTF-8"?> 
 <SomeName> 
 <identifier> 
    <UID> 1234 </UID> 
 </identifier> 
 <MainNode1> 
     <SubNode1> 
        <Subnode1a>DATA1a0</Subnode1a> 
     </SubNode1> 
     <SubNode1> 
        <Subnode1a>DATA1a1</Subnode1a> 
     </SubNode1> 
     <SubNode1> 
        <Subnode1a>DATA1a2</Subnode1a> 
     </SubNode1> 
  </MainNode1> 

  <MainNode2> 
     <SubNode2> 
        <Subnode2a>DATA2a0</Subnode2a> 
     </SubNode2> 
  </MainNode2> 

  <MainNodeIDONTCARE> 
       <SubnodeWhatever> 
       </SubnodeWhatever> 
  </MainNodeIDONTCARE> 

  <MainNodeuseless> 
       <SubnodeWhatever> 
       </SubnodeWhatever> 
  </MainNodeuseless>

  <MainNodewhatever> 
       <SubnodeWhatever> 
       </SubnodeWhatever> 
  </MainNodewhatever>
</SomeName> 

现在我的最终 XML 文件应该如下所示:

Now my final XML file should look like:

<?xml version="1.0" encoding="UTF-8"?> 
 <SomeName> 
 <identifier> 
    <UID> 1234 </UID> 
 </identifier> 
 <MainNode1> 
     <SubNode1> 
        <Subnode1a>DATA1a0</Subnode1a> 
     </SubNode1> 
     <SubNode1> 
        <Subnode1a>DATA1a1</Subnode1a> 
     </SubNode1> 
     <SubNode1> 
        <Subnode1a>DATA1a2</Subnode1a> 
     </SubNode1> 
  </MainNode1> 

  <MainNode2> 
     <SubNode2> 
        <Subnode2a>DATA2a0</Subnode2a> 
     </SubNode2> 
  </MainNode2>
</SomeName> 

我一直在尝试使用 XSLT 完成它，但似乎无法完成.

I've been trying to get it done with XSLT, but I can't seem to get it done.

感谢您的帮助.

推荐答案

这应该有效:

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl"
>
  <xsl:output method="xml" indent="yes"/>

  <xsl:template match="SomeName">
    <xsl:copy>
      <xsl:for-each select="identifier|MainNode1|MainNode2">
        <xsl:copy>
          <xsl:apply-templates />
        </xsl:copy>
      </xsl:for-each>
    </xsl:copy>
  </xsl:template>

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

</xsl:stylesheet>

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