[英]Move xml element with xslt
I have a xml file like this: 我有一个这样的xml文件:
<?xml version="1.0" encoding="UTF-8"?>
<i xmlns="http://stuff.com" >
<v>
<iNumber>0118</iNumber>
<s>1</s>
<a>24</a>
<p>2175</p>
<p>2175</p>
<p>4534</p>
</v>
</i>
But I need the export to look like this. 但是我需要导出看起来像这样。
<?xml version="1.0" encoding="UTF-8"?>
<i xmlns="http://stuff.com" >
<v>
<iNumber>0118</iNumber>
<s>1</s>
<a>24</a>
<p>2175</p>
</v>
<v>
<iNumber>0118</iNumber>
<s>1</s>
<a>24</a>
<p>2175</p>
</v>
<iNumber>0118</iNumber>
<s>1</s>
<a>24</a>
<p>4534</p>
</v>
</i>
I am new to xslt so I would like some help with transforming this xml please 我是xslt的新手,所以我需要一些有关转换此xml的帮助
Here's my attempt: 这是我的尝试:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"
xmlns:stuff="http://stuff.com" exclude-result-prefixes="stuff">
<xsl:output version="1.0" encoding="UTF-8" indent="yes" omit-xml-declaration="yes" />
<xsl:strip-space elements="*"/>
<xsl:template match="stuff:v">
<xsl:copy>
<xsl:copy-of select="ancestor::stuff:v/stuff:p"/>
<xsl:apply-templates/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
I've updated my question to show my attempt 我已经更新了问题以显示我的尝试
This should do the trick: 这应该可以解决问题:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0" xmlns:stuff="http://stuff.com" exclude-result-prefixes="stuff">
<xsl:output version="1.0" encoding="UTF-8" indent="yes" omit-xml-declaration="yes" />
<xsl:strip-space elements="*"/>
<xsl:template match="node()|@*">
<xsl:copy>
<xsl:apply-templates select="node()|@*"/>
</xsl:copy>
</xsl:template>
<xsl:template match="stuff:v">
<xsl:for-each select="stuff:p">
<xsl:apply-templates select="ancestor::stuff:v" mode="copying">
<xsl:with-param name="pId" select="generate-id()" />
</xsl:apply-templates>
</xsl:for-each>
</xsl:template>
<xsl:template match="stuff:v" mode="copying">
<xsl:param name="pId" />
<xsl:copy>
<xsl:apply-templates select="@*|node()">
<xsl:with-param name="pId" select="$pId" />
</xsl:apply-templates>
</xsl:copy>
</xsl:template>
<xsl:template match="stuff:p">
<xsl:param name="pId"/>
<xsl:if test="generate-id() = $pId">
<xsl:copy-of select="." />
</xsl:if>
</xsl:template>
</xsl:stylesheet>
Some explanation. 一些解释。 The first template matching
node()|@*
just copies things by default. 默认情况下,第一个匹配
node()|@*
模板只是复制内容。
The second template matching stuff:v
will take over when a stuff:v element is encountered. 遇到stuff:v元素时,匹配
stuff:v
的第二个模板将接管。 It will iterate over all stuff:p elements in it, and for each of them applies matching templates to its stuff:v ancestor. 它将遍历其中的所有stuff:p元素,并为每个元素将匹配的模板应用于其stuff:v祖先。 However, it enters a mode I named "copying" and calls the templates with a parameter
pId
which is the id of the p element. 但是,它进入我称为“复制”的模式,并使用参数
pId
调用模板,参数pId
是p元素的ID。 Each element in XML has some implicit id that uniquely identifies it. XML中的每个元素都有一些唯一标识它的隐式ID。
This way we end up in the next template, which also matches stuff:v
but only in mode "copying". 这样,我们最终到达了下一个模板,该模板也匹配
stuff:v
但仅在“复制”模式下。 It accepts a pId parameter, copies the v element and then applies templates to all its attributes and child nodes, no longer with the "copying" mode but with the pId parameter . 它接受一个pId参数,复制v元素,然后将模板应用于其所有属性和子节点,不再使用“复制”模式, 而是使用pId参数 。 That last part is crucial.
最后一部分至关重要。
The final template matches stuff:p
but will only copy it if the id of that element is the same as the one given in the pId parameter. 最终的模板与
stuff:p
相匹配,但是仅当该元素的id与pId参数中指定的ID相同时才将其复制。
So basically, we get to stuff:v, go through each stuff:p in it, for each of them it goes to stuff:v again in a different mode to match another template (otherwise it would recurse infinitely), and from there copy everything but for stuff:p elements require that they match a parameter passed into the template. 因此,基本上,我们进入stuff:v,遍历其中的每个stuff:p,对于它们中的每一个,它再次以不同的模式进入stuff:v,以匹配另一个模板(否则它将无限递归),然后从那里复制除东西以外的所有内容:p元素都要求它们与传递到模板中的参数匹配。
Why don't you do simply: 为什么不简单地做:
XSLT 1.0 XSLT 1.0
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:stuff="http://stuff.com"
exclude-result-prefixes="stuff">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:template match="/stuff:i">
<i xmlns="http://stuff.com">
<xsl:for-each select="stuff:v/stuff:p">
<v>
<xsl:copy-of select="../*[not(self::stuff:p)]"/>
<xsl:copy-of select="."/>
</v>
</xsl:for-each>
</i>
</xsl:template>
</xsl:stylesheet>
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