寻求可提取XML元素及值的通用XSLT，以及解析内嵌转义XML字符串的XSLT示例

Got it, let's break down the two XSLT solutions you're looking for:

1. Generic XSLT to Extract Elements and Their Values from Any XML String #

This stylesheet works with any XML input and outputs a structured list of element paths (including namespaces) along with their corresponding text values. It handles nested elements recursively:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:output method="text" encoding="UTF-8"/>

    <!-- Match the root node and start processing child elements -->
    <xsl:template match="/">
        <xsl:apply-templates select="*"/>
    </xsl:template>

    <!-- Process elements recursively -->
    <xsl:template match="*">
        <!-- Output element path (namespace URI + local name) -->
        <xsl:text>Element: </xsl:text>
        <xsl:value-of select="concat(namespace-uri(), ':', local-name())"/>
        <xsl:text>&#10;</xsl:text>
        
        <!-- Output element text value if it exists -->
        <xsl:if test="normalize-space(text()) != ''">
            <xsl:text>Value: </xsl:text>
            <xsl:value-of select="normalize-space(text())"/>
            <xsl:text>&#10;&#10;</xsl:text>
        </xsl:if>

        <!-- Recursively process child elements -->
        <xsl:apply-templates select="*"/>
    </xsl:template>

    <!-- Ignore text nodes that are just whitespace -->
    <xsl:template match="text()[normalize-space() = '']"/>
</xsl:stylesheet>

How it works: #

• Uses XSLT 2.0 features for robust namespace handling (can be adjusted to 1.0 if needed, though namespace support will be more limited)
• Recursively traverses every element in the input XML
• Outputs each element's fully qualified name (namespace URI + local name) and its trimmed text value
• Skips empty whitespace-only text nodes to keep the output clean

2. XSLT to Parse Escaped XML in <ns0:xmlString> #

For your specific input XML, this stylesheet will parse the escaped XML content inside <ns0:xmlString> and replace the escaped string with actual XML nodes. Note: This requires an XSLT 2.0+ processor (like Saxon) since it uses the parse-xml() function.

Input XML (your provided structure): #

<?xml version="1.0" encoding="UTF-8"?> 
<app4:App xmlns:app4="http://www.example.org/app4"> 
<app4:appId>45645dfg</app4:appId> 
<app4:appType>Insert/Update</app4:appType> 
<app4:appName>Optin</app4:appName> 
<app4:source>Store</app4:source> 
<app4:target>apm</app4:target> 
<app4:corelationId>564654456</app4:corelationId> 
<app4:payload> 
<ns0:xmlString xmlns:ns0="http://www.example.org/ns0">&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt; 
&lt;app6:consumers xmlns:app6=&quot;http://www.example.org/consumer_Notification&quot; xmlns:ns=&quot;http://com.equinix.product/consumerxa&quot;&gt; 
&lt;app6:consumerId&gt;yjtuj&lt;/app6:consumerId&gt; 
&lt;app6:consumerNumber&gt;gdfhfh&lt;/app6:consumerNumber&gt; 
&lt;app6:orderNumber&gt;657467476&lt;/app6:orderNumber&gt; 
&lt;app6:accountNumber&gt;75654757&lt;/app6:accountNumber&gt; 
&lt;app6:accountUcid&gt;6574575747-15C8E09FBEBD&lt;/app6:accountUcid&gt; 
&lt;app6:productName&gt;updateportal&lt;/app6:productName&gt; 
&lt;app6:metro&gt;MB&lt;/app6:metro&gt; 
&lt;app6:country&gt;Japan&lt;/app6:country&gt; 
&lt;app6:consumerType&gt;Patch Panel&lt;/app6:consumerType&gt; 
&lt;app6:consumerPartNumber&gt;654757.COMP&lt;/app6:consumerPartNumber&gt; 
&lt;app6:Status&gt;Active&lt;/app6:Status&gt; 
&lt;/app6:consumers&gt;</ns0:xmlString> 
</app4:payload> 
</app4:App>

XSLT Solution: #

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0" 
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:app4="http://www.example.org/app4"
    xmlns:ns0="http://www.example.org/ns0">
    
    <xsl:output method="xml" encoding="UTF-8" indent="yes"/>
    <xsl:strip-space elements="*"/>

    <!-- Identity template: copy all nodes as-is except where overridden -->
    <xsl:template match="@*|node()">
        <xsl:copy>
            <xsl:apply-templates select="@*|node()"/>
        </xsl:copy>
    </xsl:template>

    <!-- Match the ns0:xmlString element and parse its escaped content -->
    <xsl:template match="ns0:xmlString">
        <xsl:copy>
            <!-- Parse the escaped XML string into a node set -->
            <xsl:copy-of select="parse-xml(normalize-space(.))/*"/>
        </xsl:copy>
    </xsl:template>
</xsl:stylesheet>

Output XML (matches your desired result): #

<?xml version="1.0" encoding="UTF-8"?>
<app4:App xmlns:app4="http://www.example.org/app4">
   <app4:appId>45645dfg</app4:appId>
   <app4:appType>Insert/Update</app4:appType>
   <app4:appName>Optin</app4:appName>
   <app4:source>Store</app4:source>
   <app4:target>apm</app4:target>
   <app4:corelationId>564654456</app4:corelationId>
   <app4:payload>
      <ns0:xmlString xmlns:ns0="http://www.example.org/ns0">
         <app6:consumers xmlns:app6="http://www.example.org/consumer_Notification" xmlns:ns="http://com.equinix.product/consumerxa">
            <app6:consumerId>yjtuj</app6:consumerId>
            <app6:consumerNumber>gdfhfh</app6:consumerNumber>
            <app6:orderNumber>657467476</app6:orderNumber>
            <app6:accountNumber>75654757</app6:accountNumber>
            <app6:accountUcid>6574575747-15C8E09FBEBD</app6:accountUcid>
            <app6:productName>updateportal</app6:productName>
            <app6:metro>MB</app6:metro>
            <app6:country>Japan</app6:country>
            <app6:consumerType>Patch Panel</app6:consumerType>
            <app6:consumerPartNumber>654757.COMP</app6:consumerPartNumber>
            <app6:Status>Active</app6:Status>
         </app6:consumers>
      </ns0:xmlString>
   </app4:payload>
</app4:App>

Key Notes: #

• The identity template ensures all existing nodes are copied unchanged except for <ns0:xmlString>
• parse-xml(normalize-space(.)) cleans up whitespace in the escaped string and converts it to a proper XML node tree
• Make sure to declare all required namespaces (app4, ns0) in your XSLT to avoid namespace errors

内容的提问来源于stack exchange，提问作者mayu