如何基于当前XML元素值从其他XML文件获取对应元素？

Alright, let's sort this out. You've already loaded the external other_XML.xml into your titleCodes variable—great start! Now you just need to match elements from your current XML to the <job> entries in that external file, right?

First, let's assume your current working XML has entries that hold a matching identifier (like the bkz attribute from the external <job> elements). For example:

<current-data>
  <position>
    <matching-bkz>B 01104-101</matching-bkz>
    <!-- Other elements specific to your current XML -->
  </position>
</current-data>

Option 1: Store the matched job in a variable (cleaner for reuse) #

If you want to reuse the matched job data multiple times, store it in a variable first. Here's how:

<!-- When your current context is a <position> node (or whatever holds your matching value) -->
<xsl:variable name="current-match-value" select="matching-bkz"/>
<!-- Grab the corresponding <job> from the external XML -->
<xsl:variable name="target-job" select="$titleCodes/job[@bkz = $current-match-value]"/>

<!-- Now you can pull data from the matched job safely -->
<xsl:if test="$target-job">
  <job-details>
    <job-id><xsl:value-of select="$target-job/@id"/></job-id>
    <job-name-nl><xsl:value-of select="$target-job/name/name_nl"/></job-name-nl>
  </job-details>
</xsl:if>

Option 2: Direct inline matching (for quick one-off uses) #

If you only need to pull one piece of data, you can skip the intermediate variable and write the XPath directly:

<xsl:template match="position">
  <div class="position-item">
    <h3><xsl:value-of select="$titleCodes/job[@bkz = current()/matching-bkz]/name/name_nl"/></h3>
    <p>Job ID: <xsl:value-of select="$titleCodes/job[@bkz = current()/matching-bkz]/@id"/></p>
  </div>
</xsl:template>

Key Notes #

• If you need to match on the id attribute instead of bkz, just swap @bkz with @id in the XPath (e.g., $titleCodes/job[@id = current()/job-id])
• Always include the <xsl:if test="$target-job"> check (or ensure your XPath only returns a result if a match exists) to avoid empty or broken output when no match is found
• The current() function is important in inline matches—it refers to the current node in your working XML, not the external one

内容的提问来源于stack exchange，提问作者Niby