如何使用xslt解析另一个xml的CDATA中的xml? [英] how to parse the xml inside CDATA of another xml using xslt?
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问题描述
我需要使用单个 XSLT 在 XML 的 CDATA 中转换 XML.
I need to transform the XML inside the CDATA of the XML using the single XSLT.
我有一个如下的 XML，CDATA 中有 xml，如下面的 xml.
I have an XML as below with xml inside the CDATA as in the below xml.
<message channel-id="e01db0aa-b3db-4b6c-a055-7a0d5c1d1f20" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" >
<send-parameters>
<agent-parameter multi-valued="false">
<name>Networks</name>
<value><![CDATA[<Networks>
<Network>
<GroupCode>EXTPRI</GroupCode>
<NetworkTypeId>LANI</NetworkTypeId>
<OrgNetworkPlatformName>EON-0cbu0cust12301dcd-D-PCL-0002</OrgNetworkPlatformName>
<OrgNetworkPlatformID>urn:vcloud:network:b7ccfd5f-cfd7-48eb-9dd6-1989b08d7b86</OrgNetworkPlatformID>
</Network>
<Network>
<GroupCode>EXTPRI</GroupCode>
<NetworkTypeId>LANI</NetworkTypeId>
<OrgNetworkPlatformName>ABC-0cbu0cust12301dcd-D-PCL-XYZ</OrgNetworkPlatformName>
<OrgNetworkPlatformID>urn:vcloud:network:b7ccfd5f-cfd7-48eb-9dd6-1989b08d7b86</OrgNetworkPlatformID>
</Network>
</Networks>]]></value>
</agent-parameter>
</send-parameters>
</message>
我需要将 xml 转换为:
I need to transform the xml into :
<?xml version="1.0" encoding="UTF-8"?>
<message xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" channel-id="7652d759-4b32-44d4-8a27-9e390f0cae7b">
<send-parameters>
<agent-parameter multi-valued="false">
<name>ExternalPublicOrgNWPlatformID_DDC</name>
<value>EON-0cbu0cust12301dcd-D-PCL-0002</value>
</agent-parameter>
<agent-parameter multi-valued="false">
<name>ExternalPublicOrgNWPlatformID_DS</name>
<value>ABC-0cbu0cust12301dcd-D-PCL-XYZ</value>
</agent-parameter>
</send-parameters>
</message>
这是我给出的示例输出，我需要遍历 xml 中的多个节点并生成输出 xml.
This is the sample output I have given there would be multiple nodes inside the xml that i need to traverse through and generate the output xml.
我通过将 xpath 指向源 xml 的 cdata 内的节点来使用 xslt.但它是空的，因为它不是树结构格式.
I am using the xslt by directing the xpath upto the node inside the cdata of the source xml. but it is giving empty as it was not in a tree structure format.
我无法在 CDATA 中获取 xml 的 X 路径.如果我删除 xml 中的 CDATA ，它运行良好，但 xml 来自无法修改的外部系统.
I can not get the X-Path for the xml inside the CDATA. It is working well if I remove CDATA in the xml , but the xml is comming from the external system which can not be modified.
我不能使用多个 xslt，我需要应用单个 XSLT.
I can't use multiple xslts I need to apply single XSLT.
你能不能给我建议一下.
Could you please suggest me on this.
非常感谢期待..
推荐答案
此 XSLT 生成所需的输出:
This XSLT produces the output required:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"
xmlns:exsl="http://exslt.org/common"
extension-element-prefixes="exsl">
<xsl:output indent="yes"/>
<xsl:template match="/">
<xsl:variable name="cdata"
select="message/send-parameters/agent-parameter/value"/>
<xsl:variable name="parsedXml_">
<xsl:call-template name="parseXml">
<xsl:with-param name="text" select="$cdata"/>
</xsl:call-template>
</xsl:variable>
<xsl:variable name="parsedXml" select="exsl:node-set($parsedXml_)"/>
<message xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" >
<xsl:attribute name="channel">
<xsl:value-of select="message/@channel-id"/>
</xsl:attribute>
<send-parameters>
<agent-parameter multi-valued="false">
<name>ExternalPublicOrgNWPlatformID_DDC</name>
<value>
<xsl:value-of select="$parsedXml/Networks/Network[1]/OrgNetworkPlatformName"/>
</value>
</agent-parameter>
<agent-parameter multi-valued="false">
<name>ExternalPublicOrgNWPlatformID_DS</name>
<value>
<xsl:value-of select="$parsedXml/Networks/Network[2]/OrgNetworkPlatformName"/>
</value>
</agent-parameter>
</send-parameters>
</message>
</xsl:template>
<xsl:template name="parseXml">
<xsl:param name="text"/>
<xsl:choose>
<xsl:when test="contains($text, '>')">
<xsl:variable name="topLevelTag">
<xsl:call-template name="getTopLevelTag">
<xsl:with-param name="text" select="$text"/>
</xsl:call-template>
</xsl:variable>
<xsl:variable name="openingTag">
<xsl:value-of select="$topLevelTag"/>
</xsl:variable>
<xsl:variable name="tagName">
<xsl:call-template name="getTopLevelTagName">
<xsl:with-param name="text" select="$text"/>
</xsl:call-template>
</xsl:variable>
<xsl:variable name="closingTag">
<xsl:value-of select="concat('</',$tagName,'>')"/>
</xsl:variable>
<xsl:variable name="firstNode">
<xsl:if test="not(contains($topLevelTag,'/>'))">
<xsl:value-of select="substring-before(substring-after($text,$openingTag),$closingTag)"/>
</xsl:if>
</xsl:variable>
<xsl:variable name="afterFirstNode">
<xsl:choose>
<xsl:when test="not(contains($topLevelTag,'/>'))">
<xsl:value-of select="substring-after($text,concat($firstNode,$closingTag))"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="substring-after($text,$topLevelTag)"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:element name="{$tagName}">
<xsl:call-template name="createAttributes">
<xsl:with-param name="text" select="$topLevelTag"/>
</xsl:call-template>
<xsl:call-template name="parseXml">
<xsl:with-param name="text" select="$firstNode"/>
</xsl:call-template>
</xsl:element>
<xsl:call-template name="parseXml">
<xsl:with-param name="text" select="$afterFirstNode"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$text"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="getTopLevelTagName">
<xsl:param name="text"/>
<xsl:choose>
<xsl:when test="contains($text, '>')">
<xsl:variable name="tagWithAttributesWithoutEnd">
<xsl:value-of select="substring-before($text, '>')"/>
</xsl:variable>
<xsl:variable name="tagWithAttributesWithoutBegining">
<xsl:value-of select="substring-after($tagWithAttributesWithoutEnd, '<')"/>
</xsl:variable>
<xsl:variable name="tagName">
<xsl:choose>
<xsl:when test="contains($tagWithAttributesWithoutBegining,' ')">
<xsl:value-of
select="substring-before($tagWithAttributesWithoutBegining, ' ')"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$tagWithAttributesWithoutBegining"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:value-of select="$tagName"/>
</xsl:when>
</xsl:choose>
</xsl:template>
<xsl:template name="getTopLevelTag">
<xsl:param name="text"/>
<xsl:choose>
<xsl:when test="contains($text, '>')">
<xsl:variable name="tagWithAttributesWithoutEnd">
<xsl:value-of select="substring-before($text, '>')"/>
</xsl:variable>
<xsl:value-of select="concat($tagWithAttributesWithoutEnd,'>')"/>
</xsl:when>
</xsl:choose>
</xsl:template>
<xsl:template name="createAttributes">
<xsl:param name="text"/>
<xsl:choose>
<xsl:when test="contains($text, '="')">
<xsl:variable name="attributeName">
<xsl:value-of select="substring-before(substring-after($text,' '),'="')"/>
</xsl:variable>
<xsl:message>
<xsl:value-of select="$text"/>
</xsl:message>
<xsl:variable name="attributeValue">
<xsl:value-of select="substring-before(substring-after($text,concat($attributeName,'="')),'"')"/>
</xsl:variable>
<xsl:attribute name="{$attributeName}">
<xsl:value-of select="$attributeValue"/>
</xsl:attribute>
<xsl:call-template name="createAttributes">
<xsl:with-param name="text" select="substring-after($text,concat($attributeName,'="',$attributeValue,'"'))"/>
</xsl:call-template>
</xsl:when>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
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