Question

我必须使用以下格式的大型xml。

<First>
<Second Argument="12" Argument2="34" >
    <Order InvOrg="123" Identifier="3580456" >
                <SupplyDetails Type="TRACK" Quantity="7" Demand="ONHAND" />
    </Order>
    <Order InvOrg="Test" Identifier="3580457" >
                <SupplyDetails Type="TRACK" Quantity="15" Demand="ONHAND" />
    </Order>
    <Order InvOrg="123" Identifier="3580458" >
                <SupplyDetails Type="TRACK" Quantity="17" Demand="ONHAND" />
    </Order>
    <Order InvOrg="123" Identifier="3580459" >
                <SupplyDetails Type="TRACK" Quantity="10" Demand="ONHAND" />
    </Order>
    <Order InvOrg="123" Identifier="2888144" >
                <SupplyDetails Type="TRACK" Quantity="3" Demand="ONHAND" />
    </Order>
    <Order InvOrg="123" Identifier="2888147" >
                <SupplyDetails Type="TRACK" Quantity="9" Demand="ONHAND" />
    <Order>
    <Order InvOrg="123" Identifier="2749622" >
                <SupplyDetails Type="TRACK" Quantity="142" Demand="ONHAND" />
    </Order>
</Second>
</First>

我需要将其转换为以下格式

<First>
<Second Argument="12" Argument2="34" >
    <Order InvOrg="123" Identifier="3580456" >
                <SupplyDetails Type="TRACK" Quantity="7" Demand="ONHAND" />
    </Order>
    <Order InvOrg="Test" Identifier="3580457" >
                <SupplyDetails Type="TRACK" Quantity="15" Demand="ONHAND" />
    </Order>
    <Order InvOrg="123" Identifier="3580458" >
                <SupplyDetails Type="TRACK" Quantity="17" Demand="ONHAND" />
    </Order>
</Second>
</First>
<First>
<Second Argument="12" Argument2="34" >
    <Order InvOrg="123" Identifier="3580459" >
                <SupplyDetails Type="TRACK" Quantity="10" Demand="ONHAND" />
    </Order>
    <Order InvOrg="123" Identifier="2888144" >
                <SupplyDetails Type="TRACK" Quantity="3" Demand="ONHAND" />
    </Order>
    <Order InvOrg="123" Identifier="2888147" >
                <SupplyDetails Type="TRACK" Quantity="9" Demand="ONHAND" />
    <Order>
    <Order InvOrg="123" Identifier="2749622" >
                <SupplyDetails Type="TRACK" Quantity="142" Demand="ONHAND" />
    </Order>
</Second>
</First>

在xslt 2.0中，可以使用以下代码实现..

<xsl:stylesheet 
  version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">


<xsl:output method="xml" indent="yes"/>

<xsl:template match="/First">
  <xsl:apply-templates/>
</xsl:template>

<xsl:template match="Second">
  <xsl:for-each-group select="Order" group-starting-with="Order[(position() -1)mod 3 = 0]">

    <First>
       <Second>
          <xsl:copy-of select="current-group()"/>
       </Second>
    </First>

  </xsl:for-each-group>
</xsl:template>

我的项目只使用xslt 1.0，所以我需要将上面的逻辑更改为1.0。我怎样才能在xslt 1.0中实现相同的逻辑

Answer 1

以下XSLT使用递归来反复＆＃34;迭代＆＃34;超过配置大小的订单和拆分（例如3）。

<?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" version="1.0" encoding="UTF-8" indent="yes" />

  <!-- set the elements per block -->
  <xsl:param name="block_length" select="3"/>

  <!-- initialize the "iteration" over the Order elements by selecting all
       of them as the "child_list" -->
  <xsl:template match="/First">
    <root>
      <xsl:call-template name="split">
        <xsl:with-param name="child_list" select="Second/Order"/>
      </xsl:call-template>
    </root>
  </xsl:template>

  <!-- handle a list of orders, split off the first three and then "iterate" over
       the remaining orders by recursion -->
  <xsl:template name="split">
    <xsl:param name="child_list"/>


    <xsl:if test="count($child_list) &gt; 0">
      <!-- split off the first three -->
      <First>
        <Second>
          <xsl:copy-of select="$child_list[position() &lt;= $block_length]"/>
        </Second>
      </First>

      <!-- handle the remaining entries by recursion -->
      <xsl:call-template name="split">
        <xsl:with-param name="child_list" select="$child_list[position() > $block_length]"/>
      </xsl:call-template>
    </xsl:if>

  </xsl:template>

</xsl:stylesheet>

产生这个结果

<?xml version="1.0" encoding="UTF-8"?>
<root>
  <First>
    <Second>
      <Order InvOrg="123" Identifier="3580456">
        <SupplyDetails Type="TRACK" Quantity="7" Demand="ONHAND"/>
      </Order>
      <Order InvOrg="Test" Identifier="3580457">
        <SupplyDetails Type="TRACK" Quantity="15" Demand="ONHAND"/>
      </Order>
      <Order InvOrg="123" Identifier="3580458">
        <SupplyDetails Type="TRACK" Quantity="17" Demand="ONHAND"/>
      </Order>
    </Second>
  </First>
  <First>
    <Second>
      <Order InvOrg="123" Identifier="3580459">
        <SupplyDetails Type="TRACK" Quantity="10" Demand="ONHAND"/>
      </Order>
      <Order InvOrg="123" Identifier="2888144">
        <SupplyDetails Type="TRACK" Quantity="3" Demand="ONHAND"/>
      </Order>
      <Order InvOrg="123" Identifier="2888147">
        <SupplyDetails Type="TRACK" Quantity="9" Demand="ONHAND"/>
      </Order>
    </Second>
  </First>
  <First>
    <Second>
      <Order InvOrg="123" Identifier="2749622">
        <SupplyDetails Type="TRACK" Quantity="142" Demand="ONHAND"/>
      </Order>
    </Second>
  </First>
</root>

我认为此解决方案的一小部分具有复杂度O(n*n)，其中n是订单的初始数量，因此您可能遇到包含大量订单号的性能问题。

使用xslt 1.0拆分大型xml

1 个答案: