XSLT参数的节点总和

时间:2016-11-26 22:36:05

标签: xml xslt

我遇到了XSLT问题:我喜欢用参数计算节点总和。

XML源代码如下:

<Documents>
  <Document>
    <Deleted>0</Deleted>
    <DocumentType>2</DocumentType>
    <Currency>EUR</Currency>
    <CurrencyRate>4.368400</CurrencyRate>
    <GrossValue>1000.00</GrossValue>
    <DeliveryDate>2016-08-01</DeliveryDate>
    <FormOfPayment>2</FormOfPayment>
    <DueDate>2016-09-28</DueDate>
  </Document>
  <Document>
    <Deleted>0</Deleted>
    <DocumentType>2</DocumentType>
    <Currency>EUR</Currency>
    <CurrencyRate>4.368400</CurrencyRate>
    <GrossValue>2000.00</GrossValue>
    <DeliveryDate>2016-08-05</DeliveryDate>
    <FormOfPayment>5</FormOfPayment>
    <DueDate>2016-09-05</DueDate>
  </Document>
  <Document>
    <Deleted>0</Deleted>
    <DocumentType>2</DocumentType>
    <Currency>EUR</Currency>
    <CurrencyRate>4.368400</CurrencyRate>
    <GrossValue>3000.00</GrossValue>
    <DeliveryDate>2016-08-30</DeliveryDate>
    <FormOfPayment>2</FormOfPayment>
    <DueDate>2016-10-29</DueDate>
  </Document>
  <Document>
    <Deleted>0</Deleted>
    <DocumentType>2</DocumentType>
    <Currency>EUR</Currency>
    <CurrencyRate>4.368400</CurrencyRate>
    <GrossValue>2500.00</GrossValue>
    <DeliveryDate>2016-08-26</DeliveryDate>
    <FormOfPayment>5</FormOfPayment>
    <DueDate>2016-09-10</DueDate>
  </Document>
</Documents>

我需要的结果是参数FormOfPayment的总量GrossValue。

  • 因此,如果FormOfPayment为5,则变量GrossValueCard应为4500
  • FormOfPayment为2时,变量GrossValueCash应为4000.

我试着这样做:

<xsl:template name="Suma">
    <xsl:param name="index" select="1"/>
    <xsl:param name="nodes"/>
    <xsl:param name="totalAmount" select="0"/>
    <xsl:variable name="currentAmount" select="translate($nodes[$index],',','.')"/>
    <xsl:choose>
        <xsl:when test="count($nodes)=0">
            <xsl:value-of select="0"/>
        </xsl:when>
        <xsl:when test="$index=count($nodes)">
            <xsl:value-of select="$totalAmount + $currentAmount"/>
        </xsl:when>
        <xsl:otherwise>
            <xsl:call-template name="Suma">
                <xsl:with-param name="index" select="$index+1"/>
                <xsl:with-param name="totalAmount" select="$totalAmount + $currentAmount"/>
                <xsl:with-param name="nodes" select="$nodes"/>
            </xsl:call-template>
        </xsl:otherwise>
    </xsl:choose>
</xsl:template>

并且它可以工作,但总和来自所有GrossValue个节点。你能给我一些建议,我应该设置一个参数来选择FormOfPayment之和吗?

我试图选择条件&#34;当&#34;或&#34;如果&#34;,但它没有工作。

2 个答案:

答案 0 :(得分:2)

  

我需要的结果是参数的总量GrossValue   FormOfPayment

那你为什么不这样做呢?

XSLT 1.0

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>

<xsl:param name="FormOfPayment"/>

<xsl:template match="/Documents">
    <total>
        <xsl:value-of select="sum(Document[FormOfPayment=$FormOfPayment]/GrossValue)"/>
    </total>
</xsl:template>

</xsl:stylesheet>

<强> ADDED

如果 - 从您的尝试中看起来似乎 - XML源中的金额使用十进制逗号而不是十进制点(尽管显示的XML 表现出此问题),并且您仅限于XSLT 1.0,我建议你这样做:

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:exsl="http://exslt.org/common"
extension-element-prefixes="exsl">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>

<xsl:param name="FormOfPayment"/>

<xsl:template match="/Documents">
    <xsl:variable name="amounts">
        <xsl:for-each select="Document[FormOfPayment=$FormOfPayment]">
            <amount>
                <xsl:value-of select="translate(GrossValue, ',', '.')"/>
            </amount>
        </xsl:for-each>
    </xsl:variable>
    <total>
        <xsl:value-of select="sum(exsl:node-set($amounts)/amount)"/>
    </total>
</xsl:template>

</xsl:stylesheet>

答案 1 :(得分:0)

您可以使用GrossValue之类的谓词来选择特定的GrossValue[../FormOfPayment = 'x']个节点 要添加这些选定值,请使用带有此谓词表达式的XSLT 1.0函数sum(...)

样式表可能如下所示:

<xsl:stylesheet version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output omit-xml-declaration="yes" indent="yes" method="xml" />

 <xsl:template match="text()" />

 <xsl:template match="/Documents">
   <xsl:variable name="GrossValueCard2">
     <xsl:value-of select="sum(Document/GrossValue[../FormOfPayment = '2']/text())" />
   </xsl:variable>
   <xsl:variable name="GrossValueCard5">
     <xsl:value-of select="sum(Document/GrossValue[../FormOfPayment = '5']/text())" />
   </xsl:variable>
   Sum of 'FormOfPayment 2's: <xsl:value-of select="$GrossValueCard2" />
   Sum of 'FormOfPayment 5's: <xsl:value-of select="$GrossValueCard5" />
 </xsl:template>

</xsl:stylesheet>