Xml 使用XPath-如何选择/计算直接同级?
我正在尝试将具有相同值的相邻兄弟姐妹组合在一起。但我很难只选择直系兄弟姐妹 输入:Xml 使用XPath-如何选择/计算直接同级?,xml,xslt,xpath,count,siblings,Xml,Xslt,Xpath,Count,Siblings,我正在尝试将具有相同值的相邻兄弟姐妹组合在一起。但我很难只选择直系兄弟姐妹 输入: <ROWS> <ROW> <MONTH>1</MONTH> <START_DATE>15/04/2013</START_DATE> <RATE_AMOUNT>10</RATE_AMOUNT> <DISCOUNT>-2</DISCO
<ROWS>
<ROW>
<MONTH>1</MONTH>
<START_DATE>15/04/2013</START_DATE>
<RATE_AMOUNT>10</RATE_AMOUNT>
<DISCOUNT>-2</DISCOUNT>
</ROW>
<ROW>
<MONTH>2</MONTH>
<START_DATE>15/05/2013</START_DATE>
<RATE_AMOUNT>10</RATE_AMOUNT>
<DISCOUNT>-2</DISCOUNT>
</ROW>
<ROW>
<MONTH>3</MONTH>
<START_DATE>15/06/2013</START_DATE>
<RATE_AMOUNT>10</RATE_AMOUNT>
<DISCOUNT>-5</DISCOUNT>
</ROW>
<ROW>
<MONTH>4</MONTH>
<START_DATE>15/07/2013</START_DATE>
<RATE_AMOUNT>10</RATE_AMOUNT>
<DISCOUNT>-2</DISCOUNT>
</ROW>
</ROWS>
1.
15/04/2013
10
-2
2.
15/05/2013
10
-2
3.
15/06/2013
10
-5
4.
15/07/2013
10
-2
预期产出:
<RateList>
<Rate>
<NoOfMonths>2</NoOfMonths>
<StartDate>15/04/2013</StartDate>
<RateAmount>10</RateAmount>
<Discount>-2</Discount>
</Rate>
<Rate>
<NoOfMonths>1</NoOfMonths>
<StartDate>15/06/2013</StartDate>
<RateAmount>10</RateAmount>
<Discount>-5</Discount>
</Rate>
<Rate>
<NoOfMonths>1</NoOfMonths>
<StartDate>15/07/2013</StartDate>
<RateAmount>10</RateAmount>
<Discount>-2</Discount>
</Rate>
</RateList>
2.
15/04/2013
10
-2
1.
15/06/2013
10
-5
1.
15/07/2013
10
-2
这是我的XSL:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes"/>
<xsl:template match="/">
<RateList>
<xsl:apply-templates/>
</RateList>
</xsl:template>
<xsl:template match="ROW">
<xsl:variable name="noOfMonths" select=".|following-sibling::*[RATE_AMOUNT=current()/RATE_AMOUNT][DISCOUNT=current()/DISCOUNT]"/>
<xsl:if test="not(preceding-sibling::*[RATE_AMOUNT=current()/RATE_AMOUNT][DISCOUNT=current()/DISCOUNT])">
<Rate>
<NoOfMonths>
<xsl:value-of select="count($noOfMonths)"/>
</NoOfMonths>
<StartDate>
<xsl:value-of select="START_DATE"/>
</StartDate>
<RateAmount>
<xsl:value-of select="RATE_AMOUNT"/>
</RateAmount>
<Discount>
<xsl:value-of select="DISCOUNT"/>
</Discount>
</Rate>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
这是我得到的结果:
<RateList>
<Rate>
<NoOfMonths>3</NoOfMonths>
<StartDate>15/04/2013</StartDate>
<RateAmount>10</RateAmount>
<Discount>-2</Discount>
</Rate>
<Rate>
<NoOfMonths>1</NoOfMonths>
<StartDate>15/06/2013</StartDate>
<RateAmount>10</RateAmount>
<Discount>-5</Discount>
</Rate>
</RateList>
3.
15/04/2013
10
-2
1.
15/06/2013
10
-5
有人能帮忙吗?如何仅选择/计算直系亲属
谢谢大家! 通过直系兄弟姐妹,我只了解上面和下面的兄弟姐妹。在这种情况下,可以使用position()函数来限制。我自己刚刚开始学习,但可能是这样的
following-sibling::*[1]
及
尝试以下方法(在xslt中以注释的形式进行解释):
将生成以下输出:
<?xml version="1.0"?>
<RateList>
<Rate>
<NoOfMonths>2</NoOfMonths>
<StartDate>15/04/2013</StartDate>
<RateAmount>10</RateAmount>
<Discount>-2</Discount>
</Rate>
<Rate>
<NoOfMonths>1</NoOfMonths>
<StartDate>15/06/2013</StartDate>
<RateAmount>10</RateAmount>
<Discount>-5</Discount>
</Rate>
<Rate>
<NoOfMonths>1</NoOfMonths>
<StartDate>15/07/2013</StartDate>
<RateAmount>10</RateAmount>
<Discount>-2</Discount>
</Rate>
</RateList>
2.
15/04/2013
10
-2
1.
15/06/2013
10
-5
1.
15/07/2013
10
-2
注释:我没有使用xlt:key,因为我最喜欢的xlst处理器xsltproc不支持xls:key语句中的current() 您能使用XSLT2.0吗?这不会生成预期的输出谢谢!太完美了!很高兴我能帮忙。你能把答案标为有效吗?如果您不知道如何查看:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes"/>
<xsl:template match="/">
<RateList>
<xsl:apply-templates select="*/ROW"/>
</RateList>
</xsl:template>
<xsl:template match="ROW">
<!--Look for preceding row which has not the same data (RATE_AMOUNT and DISCOUNT ) as the current.
And generate a id, here month concatenated with an '#'.-->
<xsl:variable name="notSameData"
select="concat(preceding-sibling::ROW
[not(RATE_AMOUNT=current()/RATE_AMOUNT
and DISCOUNT=current()/DISCOUNT )][1]/MONTH,'#')"/>
<!--Count following month which has same data as current
and also the same preceding month with not the same data as the current-->
<xsl:variable name="noOfMonths"
select="count(following-sibling::*
[ RATE_AMOUNT=preceding-sibling::*[1]/RATE_AMOUNT and
DISCOUNT = preceding-sibling::*[1]/DISCOUNT]
[
concat(preceding-sibling::ROW
[not(RATE_AMOUNT=current()/RATE_AMOUNT
and DISCOUNT=current()/DISCOUNT )][1]/MONTH,'#') = $notSameData
]) +1 "/>
<!--Output only for rows which don not have a not a direct (first) preceding one with same data.-->
<xsl:if test="not(preceding-sibling::ROW[1][RATE_AMOUNT=current()/RATE_AMOUNT][DISCOUNT=current()/DISCOUNT])">
<Rate>
<NoOfMonths>
<xsl:value-of select="$noOfMonths"/>
</NoOfMonths>
<StartDate>
<xsl:value-of select="START_DATE"/>
</StartDate>
<RateAmount>
<xsl:value-of select="RATE_AMOUNT"/>
</RateAmount>
<Discount>
<xsl:value-of select="DISCOUNT"/>
</Discount>
</Rate>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
<?xml version="1.0"?>
<RateList>
<Rate>
<NoOfMonths>2</NoOfMonths>
<StartDate>15/04/2013</StartDate>
<RateAmount>10</RateAmount>
<Discount>-2</Discount>
</Rate>
<Rate>
<NoOfMonths>1</NoOfMonths>
<StartDate>15/06/2013</StartDate>
<RateAmount>10</RateAmount>
<Discount>-5</Discount>
</Rate>
<Rate>
<NoOfMonths>1</NoOfMonths>
<StartDate>15/07/2013</StartDate>
<RateAmount>10</RateAmount>
<Discount>-2</Discount>
</Rate>
</RateList>