我有以下简化的 XML 结构:
<?xml version="1.0" encoding="UTF-8"?>
<ExportData>
<DataSet>
<Tables>
<Table>
<Rows>
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9991</revenueCenterPOSReflongtrue>
</R>
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9993</revenueCenterPOSReflongtrue>
</R>
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9992</revenueCenterPOSReflongtrue>
</R>
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9994</revenueCenterPOSReflongtrue>
</R>
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9995</revenueCenterPOSReflongtrue>
</R>
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue/>
</R>
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9993</revenueCenterPOSReflongtrue>
</R>
</Rows>
</Table>
</Tables>
</DataSet>
</ExportData>
我需要根据“Qualifierstring”和“revenueCenter”对记录集(R)进行分组。我想出了这个完美运行的 XSLT:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="xml" indent="yes"/>
<xsl:template match="text()|@*"/>
<!-- define the key to define unique elements -->
<xsl:key name="keyTranstypeCcRc" match="R" use="concat(transactionQualifierstring,'|',revenueCenterPOSReflongtrue)"/>
<!-- define which elements are unique -->
<xsl:template match="ExportData/DataSet/Tables/Table/Rows">
<xsl:variable name="uniqueTransactions" select="R[generate-id()=generate-id(key('keyTranstypeCcRc',concat(transactionQualifierstring,'|',revenueCenterPOSReflongtrue))[1])]"/>
<ExportData>
<xsl:apply-templates select="$uniqueTransactions" mode="group"/>
</ExportData>
</xsl:template>
<!-- create the unique groups -->
<xsl:template match="R" mode="group">
<transaction>
<xsl:attribute name="transactionType"><!-- write the 2 key criteria into this attribute -->
<xsl:value-of select="concat(transactionQualifierstring,'|',revenueCenterPOSReflongtrue)"/>
</xsl:attribute>
<xsl:apply-templates select="key('keyTranstypeCcRc', concat(transactionQualifierstring,'|',revenueCenterPOSReflongtrue))" mode="item"/>
</transaction>
</xsl:template>
<!-- write the item content into each group -->
<xsl:template match="R" mode="item">
<R>
<xsl:copy-of select="child::*"/>
</R>
</xsl:template>
</xsl:stylesheet>
我定义一个键并选择唯一的项目,构建组并处理记录集 (R)。
但是现在我如何定义密钥以便将“revenueCenter”9992 和 9993 组合在一起?我必须设置2个不同的键吗?(但我怎么能在我的模板中使用 2 个键)或者我可以用值扩展现有的键吗?
XML 应如下所示:
<?xml version="1.0" encoding="UTF-8"?>
<ExportData>
<transaction transactionType="Sales|9991">
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9991</revenueCenterPOSReflongtrue>
</R>
</transaction>
<transaction transactionType="Sales|9993 Sales|9992">
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9993</revenueCenterPOSReflongtrue>
</R>
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9993</revenueCenterPOSReflongtrue>
</R>
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9992</revenueCenterPOSReflongtrue>
</R>
</transaction>
<transaction transactionType="Sales|9994">
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9994</revenueCenterPOSReflongtrue>
</R>
</transaction>
<transaction transactionType="Sales|9995">
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9995</revenueCenterPOSReflongtrue>
</R>
</transaction>
<transaction transactionType="Sales|">
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue/>
</R>
</transaction>
</ExportData>
2012 年 5 月 24 日更新: 我实际上想出了一个 XSLT,它可以满足我的需求,我使用了两个不同的键:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="xml" indent="yes"/>
<xsl:template match="text()|@*"/>
<!-- define the key to define unique elements -->
<!--<xsl:key name="keyTranstypeCcRc" match="R" use="concat(transactionQualifierstring,'|',revenueCenterPOSReflongtrue)"/>-->
<xsl:key name="keyTranstypeCcRc" match="R[not(revenueCenterPOSReflongtrue='9992' or revenueCenterPOSReflongtrue='9993')]"
use="concat(transactionQualifierstring,'|',revenueCenterPOSReflongtrue)"/>
<xsl:key name="keyTranstypeCcRc99923" match="R[revenueCenterPOSReflongtrue='9992' or revenueCenterPOSReflongtrue='9993']"
use="transactionQualifierstring"/>
<!-- define which elements are unique -->
<xsl:template match="ExportData/DataSet/Tables/Table/Rows">
<xsl:variable name="uniqueTransactions" select="R[not(revenueCenterPOSReflongtrue='9992' or revenueCenterPOSReflongtrue='9993')]
[generate-id()=generate-id(key('keyTranstypeCcRc',concat(transactionQualifierstring,'|',revenueCenterPOSReflongtrue))[1])]"/>
<xsl:variable name="keyTranstypeCcRc99923" select="R[revenueCenterPOSReflongtrue='9992' or revenueCenterPOSReflongtrue='9993']
[generate-id()=generate-id(key('keyTranstypeCcRc99923',transactionQualifierstring)[1])]"/>
<ExportData>
<xsl:apply-templates select="$uniqueTransactions" mode="group"/>
<xsl:apply-templates select="$keyTranstypeCcRc99923" mode="group99923"/>
</ExportData>
</xsl:template>
<!-- create the unique groups -->
<xsl:template match="R" mode="group">
<transaction>
<xsl:attribute name="transactionType"><!-- write the 2 key criteria into this attribute -->
<xsl:value-of select="concat(transactionQualifierstring,'|',revenueCenterPOSReflongtrue)"/>
</xsl:attribute>
<xsl:apply-templates select="key('keyTranstypeCcRc', concat(transactionQualifierstring,'|',revenueCenterPOSReflongtrue))" mode="item"/>
</transaction>
</xsl:template>
<!-- create the unique groups -->
<xsl:template match="R" mode="group99923">
<transaction>
<xsl:attribute name="transactionType"><!-- write the 2 key criteria into this attribute -->
<xsl:value-of select="concat(transactionQualifierstring,'|','9992','|','9993')"/>
</xsl:attribute>
<xsl:apply-templates select="key('keyTranstypeCcRc99923', transactionQualifierstring)" mode="item"/>
</transaction>
</xsl:template>
<!-- write the item content into each group -->
<xsl:template match="R" mode="item">
<R>
<xsl:copy-of select="child::*"/>
</R>
</xsl:template>
</xsl:stylesheet>
应用到源 XML 我得到这个正确的输出:
<?xml version="1.0" encoding="UTF-8"?>
<ExportData>
<transaction transactionType="Sales|9991">
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9991</revenueCenterPOSReflongtrue>
</R>
</transaction>
<transaction transactionType="Sales|9994">
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9994</revenueCenterPOSReflongtrue>
</R>
</transaction>
<transaction transactionType="Sales|9995">
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9995</revenueCenterPOSReflongtrue>
</R>
</transaction>
<transaction transactionType="Sales|">
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue/>
</R>
</transaction>
<transaction transactionType="Sales|9992|9993">
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9993</revenueCenterPOSReflongtrue>
</R>
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9992</revenueCenterPOSReflongtrue>
</R>
<R>
<transactionQualifierstring>Sales</transactionQualifierstring>
<revenueCenterPOSReflongtrue>9993</revenueCenterPOSReflongtrue>
</R>
</transaction>
</ExportData>
该解决方案有效,因为我知道我需要分别排除和分组哪些值。