排除所选元素的某些部分的 XPath? [英] XPath that excludes some part of selected element?
本文介绍了排除所选元素的某些部分的 XPath?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
XML:
<root>
<rows>
<row hash="156458">
<column name="Id">1</column>
<column name="Nome">Evandro</column>
<column name="CPF">98765432100</column>
</row>
<row hash="52458">
<column name="Id">2</column>
<column name="Nome">Everton</column>
<column name="CPF">12345678900</column>
</row>
</rows>
</root>
XPath 查询:
<代码>./root/rows/row/column[@name='Nome'] |./root/rows/row/column[@name='CPF']
XPath 返回:
<root>
<column name="Nome">Evandro</column>
<column name="CPF">98765432100</column>
<column name="Nome">Everton</column>
<column name="CPF">12345678900</column>
</root>
我希望 XPath 返回什么:
What I wish the XPath return:
<root>
<rows>
<row hash="156458">
<column name="Nome">Evandro</column>
<column name="CPF">98765432100</column>
</row>
<row hash="52458">
<column name="Nome">Everton</column>
<column name="CPF">12345678900</column>
</row>
</rows>
</root>
我想让 xpath 在我进行查询时保留文档结构.
I want to make the xpath preserve the document structure when I make the query.
推荐答案
XPath 非常适合选择,但不适用于结构化.加强对两者的完整 XSLT.您只需要一个简单的基于身份的转换...
XPath's great for selecting but not for structuring. Step up to full XSLT for both. A simple identity-based transformation is all you need...
鉴于此 XML 输入:
<?xml version="1.0" encoding="utf-8" ?>
<root>
<rows>
<row hash="156458">
<column name="Id">1</column>
<column name="Nome">Evandro</column>
<column name="CPF">98765432100</column>
</row>
<row hash="52458">
<column name="Id">2</column>
<column name="Nome">Everton</column>
<column name="CPF">12345678900</column>
</row>
</rows>
</root>
这个 XSLT 转换:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="column[@name='Id']"/>
</xsl:stylesheet>
将产生所需的 XML 输出:
<?xml version="1.0" encoding="UTF-8"?>
<root>
<rows>
<row hash="156458">
<column name="Nome">Evandro</column>
<column name="CPF">98765432100</column>
</row>
<row hash="52458">
<column name="Nome">Everton</column>
<column name="CPF">12345678900</column>
</row>
</rows>
</root>
注意事项:
- 第一个模板是标识模板;它将从中复制节点输入到输出,除非有更具体的模板覆盖它.
- 第二个模板是省略
Id
column
s 的覆盖.
- The first template is the identify template; it will copy nodes from input to output unless a more specific template overrides it.
- The second template is an override to omit
Id
column
s.
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