我如何在 xslt 1.0 / xml 中使用 else 函数答案

【问题标题】：How can i use an else function in xslt 1.0 / xml我如何在 xslt 1.0 / xml 中使用 else 函数
【发布时间】：2020-02-11 13:40:56
【问题描述】：

   <cac:InvoiceLine xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2">
  <cbc:ID xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">4</cbc:ID>
  <cbc:InvoicedQuantity xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" unitCode="KWH">10825.00000000</cbc:InvoicedQuantity>
  <cbc:LineExtensionAmount xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" currencyID="EUR">405.94</cbc:LineExtensionAmount>
  <cac:InvoicePeriod>
     <cbc:StartDate xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">2020-01-01</cbc:StartDate>
     <cbc:EndDate xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">2020-01-08</cbc:EndDate>
  </cac:InvoicePeriod>
  <cac:Item>
     <cbc:Description xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">Opslag duurzame energie (schijf 2)</cbc:Description>
     <cbc:Name xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">Opslag duurzame energie (schijf 2)</cbc:Name>
     <cac:CommodityClassification>
        <cbc:ItemClassificationcode xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" listID="ZZZ">83101800</cbc:ItemClassificationcode>
     </cac:CommodityClassification>
     <cac:ClassifiedTaxCategory>
        <cbc:ID xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">S</cbc:ID>
        <cbc:Percent xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">21.00</cbc:Percent>
        <cac:TaxScheme>
           <cbc:ID xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">VAT</cbc:ID>
        </cac:TaxScheme>
     </cac:ClassifiedTaxCategory>
  </cac:Item>
  <cac:Price>
     <cbc:PriceAmount xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" currencyID="EUR">0.0375000</cbc:PriceAmount>
  </cac:Price>
 </cac:InvoiceLine>
   <cac:InvoiceLine xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2">
      <cbc:ID xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">5</cbc:ID>
      <cbc:InvoicedQuantity xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" unitCode="ANN">-0.02185792</cbc:InvoicedQuantity>
      <cbc:LineExtensionAmount xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" currencyID="EUR">-9.52</cbc:LineExtensionAmount>
      <cac:InvoicePeriod>
         <cbc:StartDate xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">2020-01-01</cbc:StartDate>
         <cbc:EndDate xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">2020-01-08</cbc:EndDate>
      </cac:InvoicePeriod>
      <cac:Item>
         <cbc:Description xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">Netbeheerkosten</cbc:Description>
         <cbc:Name xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">Netbeheerkosten</cbc:Name>
         <cac:CommodityClassification>
            <cbc:ItemClassificationcode xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" listID="ZZZ">83101800</cbc:ItemClassificationcode>
         </cac:CommodityClassification>
         <cac:ClassifiedTaxCategory>
            <cbc:ID xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">S</cbc:ID>
            <cbc:Percent xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">21.00</cbc:Percent>
            <cac:TaxScheme>
               <cbc:ID xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">VAT</cbc:ID>
            </cac:TaxScheme>
         </cac:ClassifiedTaxCategory>
      </cac:Item>
      <cac:Price>
         <cbc:PriceAmount xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" currencyID="EUR">435.6800000</cbc:PriceAmount>
      </cac:Price>
   </cac:InvoiceLine>
   <cac:InvoiceLine xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2">
      <cbc:ID xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">1</cbc:ID>
      <cbc:InvoicedQuantity xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" unitCode="MON">0.25810000</cbc:InvoicedQuantity>
      <cbc:LineExtensionAmount xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" currencyID="EUR">0.00</cbc:LineExtensionAmount>
      <cac:InvoicePeriod>
         <cbc:StartDate xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">2020-01-01</cbc:StartDate>
         <cbc:EndDate xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">2020-02-08</cbc:EndDate>
      </cac:InvoicePeriod>
      <cac:Item>
         <cbc:Description xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">Termijnbedrag Elektriciteit</cbc:Description>
         <cbc:Name xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">Termijnbedrag Elektriciteit</cbc:Name>
         <cac:CommodityClassification>
            <cbc:ItemClassificationcode xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" listID="ZZZ">83101800</cbc:ItemClassificationcode>
         </cac:CommodityClassification>
         <cac:ClassifiedTaxCategory>
            <cbc:ID xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">S</cbc:ID>
            <cbc:Percent xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">21.00</cbc:Percent>
            <cac:TaxScheme>
               <cbc:ID xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">VAT</cbc:ID>
            </cac:TaxScheme>
         </cac:ClassifiedTaxCategory>
      </cac:Item>
      <cac:Price>
         <cbc:PriceAmount xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" currencyID="EUR">0.0000000</cbc:PriceAmount>
      </cac:Price>
   </cac:InvoiceLine>
</ubl:Invoice>

您可以在上面找到我得到的一段 XML。我想要以下内容：如果 ItemClassificationCode 是 83101800 并且 Item/Description 是“Termijnbedrag Elektriciteit”，那么“Elektra1” Elseif ItemClassificationCode 是 83101800 并且 Item/Description 是“Netbeheerkosten” 然后“Net1” Elseif ItemClassificationCode 是 83101800 然后“Elektra” Else “”

我尝试了以下方法：

<xsl:template match="/">
   <xsl:for-each select="/*[local-name()='InvoiceLine']">
      <xsl:if test="*[local-name()='Item']/*[local-name()='CommodityClassification']/*[local-name()='ItemClassificationcode']='83101800'">Elektra</xsl:if>
      <xsl:if test="*[local-name()='Item']/*[local-name()='CommodityClassification']/*[local-name()='ItemClassificationcode']='83101800' and *[local-name()='Item']/*[local-name()='Description']='Netbeheerkosten'">Net1</xsl:if>
      <xsl:if test="*[local-name()='Item']/*[local-name()='CommodityClassification']/*[local-name()='ItemClassificationcode']='83101800' and *[local-name()='Item']/*[local-name()='Description']='Termijnbedrag Elektriciteit'">Elektra1</xsl:if>
   </xsl:for-each>
</xsl:template>

然而，上面的代码只是让我得到了一切的结果。所以 ElektraNet1Elektra1 但我只想要 Net1 或 Elektra 1 如果 InvoiceLine 的两个变量都取决于它。因此，如果 itemcode 是 83101800 并且描述说 Netbeheerkosten 那么它应该是 Net1 和 Net1 而已..

有人可以帮帮我吗？我也用 xsl:otherwhise when 等尝试过。但我似乎没有让它工作。

【问题讨论】：

使用xsl:choose。 --附言使用前缀而不是 *[local-name()='...'] hack。
你能帮我解决这个问题吗？我对 xsl 很陌生（+/- 1 年）。
不，因为您的 XML 不完整并且您没有显示预期的结果。请参阅：minimal reproducible example.
预期结果应该是（在这种情况下）：Elektra（第 1 行）Net1（第 2 行）和 Elektra1（第 3 行）

标签： xml xslt-1.0

【解决方案1】：

这就是模板规则的用途：

<xsl:template match="/ubl:Invoice">
    <xsl:apply-templates select="cac:InvoiceLine[cac:Item/cac:CommodityClassification/cbc:ItemClassificationcode='83101800']">
</xsl:template>

<xsl:template match="cac:Item[cbc:Description='Netbeheerkosten']">Net1</xsl:template>

<xsl:template match="cac:Item[cbc:Description='Termijnbedrag Elektriciteit']">Net1</xsl:template>

<xsl:template match="cac:Item">Elektra</xsl:template>

【讨论】：

【解决方案2】：

试试这个方法：

<xsl:template match="/ubl:Invoice">
    <xsl:for-each select="cac:InvoiceLine[cac:Item/cac:CommodityClassification/cbc:ItemClassificationcode='83101800']">
        <xsl:choose>
            <xsl:when test="cac:Item/cbc:Description='Netbeheerkosten'">Net1</xsl:when>
            <xsl:when test="cac:Item/cbc:Description='Termijnbedrag Elektriciteit'">Elektra1</xsl:when>
            <xsl:otherwise>Elektra</xsl:otherwise>
        </xsl:choose>
        <xsl:text>&#10;</xsl:text>
   </xsl:for-each>
</xsl:template>

这要求您的样式表包含源 XML 中使用的命名空间声明。

【讨论】：

谢谢！！这是为我做的。