我需要使用以下结构转换XML
<CustomerStatements>
<CustomerStatement>
<Name>ABC</Name>
<ID>1</ID>
<Amt>10</Amt>
</CustomerStatement>
<CustomerStatement>
<Name>ABC</Name>
<ID>1</ID>
<Amt>20</Amt>
</CustomerStatement>
<CustomerStatement>
<Name>XYZ</Name>
<ID>2</ID>
<Amt>30</Amt>
</CustomerStatement>
<CustomerStatement>
<Name>XYZ</Name>
<ID>2</ID>
<Amt>40</Amt>
</CustomerStatement>
</CustomerStatements>
要
<Customers>
<Customer>
<Name>ABC</Name>
<Id>1</Id>
<Amounts>
<Amount>10</Amount>
<Amount>20</Amount>
</Amounts>
</Customer>
<Customer>
<Name>XYZ</Name>
<Id>2</Id>
<Amount>30</Amount>
<Amount>40</Amount>
</Customer>
</Customers>
我尝试使用for循环并将名称转换为变量以比较下一条记录中的名称,但这不起作用。你有没有人帮我提供一个示例XSLT psudo代码。
由于
答案 0 :(得分:1)
<强>予。当这个XSLT 1.0解决方案:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output omit-xml-declaration="no" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:key
name="kCustByNameId"
match="CustomerStatement"
use="concat(Name, '+', ID)" />
<xsl:template match="/*">
<Customers>
<xsl:apply-templates
select="CustomerStatement[
generate-id() =
generate-id(key('kCustByNameId', concat(Name, '+', ID))[1])]" />
</Customers>
</xsl:template>
<xsl:template match="CustomerStatement">
<Customer>
<xsl:copy-of select="Name|ID" />
<Amounts>
<xsl:for-each select="key('kCustByNameId', concat(Name, '+', ID))/Amt">
<Amount>
<xsl:apply-templates />
</Amount>
</xsl:for-each>
</Amounts>
</Customer>
</xsl:template>
</xsl:stylesheet>
...适用于OP的原始XML:
<CustomerStatements>
<CustomerStatement>
<Name>ABC</Name>
<ID>1</ID>
<Amt>10</Amt>
</CustomerStatement>
<CustomerStatement>
<Name>ABC</Name>
<ID>1</ID>
<Amt>20</Amt>
</CustomerStatement>
<CustomerStatement>
<Name>XYZ</Name>
<ID>2</ID>
<Amt>30</Amt>
</CustomerStatement>
<CustomerStatement>
<Name>XYZ</Name>
<ID>2</ID>
<Amt>40</Amt>
</CustomerStatement>
</CustomerStatements>
...生成了想要的结果:
<?xml version="1.0" encoding="UTF-8"?><Customers>
<Customer>
<Name>ABC</Name>
<ID>1</ID>
<Amounts>
<Amount>10</Amount>
<Amount>20</Amount>
</Amounts>
</Customer>
<Customer>
<Name>XYZ</Name>
<ID>2</ID>
<Amounts>
<Amount>30</Amount>
<Amount>40</Amount>
</Amounts>
</Customer>
</Customers>
这里要看的主要内容是Muenchian Grouping,这是在XSLT 1.0中对问题进行分组的普遍接受的方法。
<强> II。这是一个更紧凑的XSLT 2.0解决方案:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0">
<xsl:output omit-xml-declaration="no" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:template match="/*">
<Customers>
<xsl:for-each-group select="CustomerStatement" group-by="ID">
<Customer>
<xsl:copy-of select="current-group()[1]/Name|current-group()[1]/ID" />
<Amounts>
<xsl:for-each select="current-group()/Amt">
<Amount>
<xsl:apply-templates />
</Amount>
</xsl:for-each>
</Amounts>
</Customer>
</xsl:for-each-group>
</Customers>
</xsl:template>
</xsl:stylesheet>
在这种情况下,请注意XSLT 2.0对for-each-group元素的使用,这消除了对有时冗长且可能令人困惑的Muenchian分组方法的需要。