从XSLT中的节点的子节点访问另一个节点的子节点

时间:2011-05-02 05:49:56

标签: xslt

如何在XSLT中从父节点2的子节点访问父节点1的子节点?

<Test>
    <SOLUTIONS>
        <SOLUTION>
            <OBSERVATIONS>
                <OBSERVATION Key = "1ASED">A1</OBSERVATION>
                <OBSERVATION Key = "2DFED">A2</OBSERVATION>
                <OBSERVATION Key = "3DGEE">A3</OBSERVATION>
            </OBSERVATIONS>
            <ITRs>
                <ITR Key = "ASE1">P1</ITR>
                <ITR Key = "GGEE1">P2</ITR>
                <ITR Key = "GERFECE1">P3</ITR>
            </ITRs>
        </SOLUTION>
        <SOLUTION>
            <OBSERVATIONS>
                <OBSERVATION Key = "ABCD">A1</OBSERVATION>
                <OBSERVATION Key = "EFGH">A2</OBSERVATION>
                <OBSERVATION Key = "IJKL">A3</OBSERVATION>
            </OBSERVATIONS>
            ...
        </SOLUTION>
    </SOLUTIONS>
</Test>

对于每个ITR,我需要打印观察。对于内部的第一个ITR,我必须将它的Key链接到观察的Key。因此,共显示9条记录。

我的XSLT

<xsl:for-each select="/Test/SOLUTIONS/SOLUTION">
    <xsl:for-each select="ITRs/ITR">
      <xsl:variable name="Key_ITRPS" select="@Key"/>
      <xsl:for-each select="/Test/SOLUTIONS/SOLUTION/OBSERVATIONS/OBSERVATION">
            <xsl:variable name="srcKey_A" select="@Key"/>
            <xsl:element name="Relationship">
                <xsl:attribute name="RelCommonKey">
                    <xsl:value-of select="concat($Key_ITRPS,$srcKey_A)"/>
                </xsl:attribute>
            </xsl:element>
      </xsl:for-each>
    </xsl:for-each>
</xsl:for-each>

我需要的输出是

 RelCommonKey

 ASE11ASED
 ASE12DFED
 ASE13DGEE

 GGEE11ASED
 GGEE12DFED
 GGEE13DGEE

 GERFECE11ASED
 GERFECE12DFED
 GERFECE13DGEE

我在这里遇到的问题是上面的数据,我晚上也注意到第二个观察键。

ITR键“ASE1”也链接到“ABCD”,“EFGH”,“IJKL”。请帮我限制上面显示的数据。

1 个答案:

答案 0 :(得分:2)

你的问题是你的XPath查询全部“锚定”在根节点“/ Test”上,你需要做的是使用当前上下文和'父'XPath轴来导航ITR元素到同一解决方案中的观察。以下XSLT提供了您需要的输出:

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

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

  <xsl:template match="SOLUTION">
    <!-- iterat over the ITRs for this solution -->
    <xsl:for-each select="ITRs/ITR">
      <xsl:variable name="Key_ITRPS" select="@Key"/>
      <!-- iterate over the observations -->
      <xsl:for-each select="../../OBSERVATIONS/OBSERVATION">
        <!-- the ITR Key -->
        <xsl:value-of select="$Key_ITRPS"/>
        <!-- the related observation -->
        <xsl:value-of select="@Key"/>
        <!-- a newline -->
        <xsl:text>
        </xsl:text>
      </xsl:for-each>
    </xsl:for-each>
  </xsl:template>

</xsl:stylesheet>