我试图过滤特定的字段,并在另一个字段上连接:
输入:
<?xml version="1.0" encoding="UTF-8"?>
<payloads>
<payload>
<firstname>michael</firstname>
<secondname>brown</secondname>
<number>1</number>
</payload>
<payload>
<firstname>michael</firstname>
<secondname>brown</secondname>
<number>2</number>
</payload>
<payload>
<firstname>michael</firstname>
<secondname>brown</secondname>
<number>3</number>
</payload>
</payloads>
输出:
<?xml version="1.0" encoding="UTF-8"?>
<payloads>
<payload>
<firstname>michael</firstname>
<secondname>brown</secondname>
<number>1,2,3</number>
</payload>
</payloads>
我知道我需要遍历每个有效负载标签,但目前我无法正确输出它.目前我有这个:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output indent="yes"/>
<xsl:template match="@* | node()">
<xsl:copy>
<xsl:apply-templates select="@* | node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="payloads">
<xsl:copy>
<xsl:for-each select="payload">
<payload>
<xsl:value-of select="firstname"/>
<xsl:value-of select="secondname"/>
<xsl:value-of select="number"/>
</payload>
</xsl:for-each>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
最佳答案 使用此模板:
<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:key name="k" match="payload" use="concat(firstname, '|', secondname)"/>
<xsl:template match="payload[generate-id() =
generate-id(key('k', concat(firstname, '|', secondname)))]">
<xsl:copy>
<xsl:copy-of select="firstname"/>
<xsl:copy-of select="secondname"/>
<number>
<xsl:for-each select="key('k', concat(firstname, '|', secondname))">
<xsl:value-of select="number"/>
<xsl:if test="position() != last()">
<xsl:text>,</xsl:text>
</xsl:if>
</xsl:for-each>
</number>
</xsl:copy>
</xsl:template>
<xsl:template match="payload"/>
<xsl:template match="@* | node()">
<xsl:copy>
<xsl:apply-templates select="@* | node()"/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
当应用于提供的输入XML时,它输出想要的正确结果:
<payloads>
<payload>
<firstname>michael</firstname>
<secondname>brown</secondname>
<number>1,2,3</number>
</payload>
</payloads>