0

我有一个如下所示的 xml：

<?xml version="1.0" encoding="UTF-8"?>
<Object>
<Data type="plan" name="testAom" id="10">

    <obj class="D" version="1.0" distName="A-1/B-1/C-1/D-1" operation="create" >
        <p name="Active">1</p>
        <p name="Type">CPU</p>
        <p name="StDate">2013-07-27T00:00:00+00:00</p>
        <p name="StpDate">2013-07-29T00:00:00+00:00</p>
    </obj>

    <obj class="E" version="1.0" distName="A-1/B-1/C-1/D-1/E-1" operation="create">
        <p name="dayOfWeek">0</p>
        <p name="interval">10</p>
    </obj>

    <obj class="E" version="1.0" distName="A-1/B-1/C-1/D-2/E-1" operation="update">
        <p name="dayOfWeek">0</p>
        <p name="interval">10</p>
    </obj>

    <obj class="D" version="1.0" distName="A-1/B-1/C-1/D-2" operation="update">
        <p name="Active">1</p>
        <p name="Type">CPU</p>
        <p name="StDate">2013-07-27T00:00:00+00:00</p>
        <p name="StpDate">2013-07-29T00:00:00+00:00</p>
    </obj>
</Data>
</Object>

这里不保证输入源文件的顺序。但在 XSL 转换后的输出中，我要求输出按特定顺序排列。

下面是 XSL：

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

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

<xsl:template match="@*|node()">
<xsl:copy>
    <xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>

<xsl:template match="obj[@class = 'D' ]">
<xsl:variable name="item" select="."/>
<xsl:choose>
    <xsl:when test="$item/@operation='update'">
        <xsl:copy>
            <xsl:apply-templates select="@*"/>
            <xsl:attribute name="operation">delete</xsl:attribute>
            <xsl:apply-templates select="node()"/>
        </xsl:copy>
        <xsl:copy>
            <xsl:apply-templates select="@*"/>
            <xsl:attribute name="operation">create</xsl:attribute>
            <xsl:apply-templates select="node()"/>
        </xsl:copy>
    </xsl:when>
    <xsl:otherwise>
        <xsl:copy>
            <xsl:apply-templates select="@*"/>
            <xsl:attribute name="operation">NEW_create</xsl:attribute>
            <xsl:apply-templates select="node()"/>
        </xsl:copy>
    </xsl:otherwise>
</xsl:choose>
</xsl:template>

<xsl:template match="obj[@class = 'E' ]">
<xsl:variable name="childitem" select="."/>
<xsl:choose>
    <xsl:when test="$childitem/@operation='update'">
        <xsl:copy>
            <xsl:apply-templates select="@*"/>
            <xsl:attribute name="operation">delete</xsl:attribute>
            <xsl:apply-templates select="node()"/>
        </xsl:copy>
        <xsl:copy>
            <xsl:apply-templates select="@*"/>
            <xsl:attribute name="operation">create</xsl:attribute>
            <xsl:apply-templates select="node()"/>
        </xsl:copy>
    </xsl:when>
    <xsl:otherwise>
        <xsl:copy>
            <xsl:apply-templates select="@*"/>
            <xsl:attribute name="operation">NEW_create</xsl:attribute>
            <xsl:apply-templates select="node()"/>
        </xsl:copy>
    </xsl:otherwise>
</xsl:choose>
</xsl:template>         
</xsl:stylesheet>

我得到的输出是：

<?xml version="1.0" encoding="UTF-8"?>
<Object>
<Data type="plan" name="testAom" id="10">

    <obj class="D" version="1.0" distName="A-1/B-1/C-1/D-1" operation="NEW_create">
        <p name="Active">1</p>
        <p name="Type">CPU</p>
        <p name="StDate">2013-07-27T00:00:00+00:00</p>
        <p name="StpDate">2013-07-29T00:00:00+00:00</p>
    </obj>

    <obj class="E" version="1.0" distName="A-1/B-1/C-1/D-1/E-1" operation="NEW_create">
        <p name="dayOfWeek">0</p>
        <p name="interval">10</p>
    </obj>

    <obj class="E" version="1.0" distName="A-1/B-1/C-1/D-2/E-1" operation="delete">
        <p name="dayOfWeek">0</p>
        <p name="interval">10</p>
    </obj>
    <obj class="E" version="1.0" distName="A-1/B-1/C-1/D-2/E-1" operation="create">
        <p name="dayOfWeek">0</p>
        <p name="interval">10</p>
    </obj>

    <obj class="D" version="1.0" distName="A-1/B-1/C-1/D-2" operation="delete">
        <p name="Active">1</p>
        <p name="Type">CPU</p>
        <p name="StDate">2013-07-27T00:00:00+00:00</p>
        <p name="StpDate">2013-07-29T00:00:00+00:00</p>
    </obj>
    <obj class="D" version="1.0" distName="A-1/B-1/C-1/D-2" operation="create">
        <p name="Active">1</p>
        <p name="Type">CPU</p>
        <p name="StDate">2013-07-27T00:00:00+00:00</p>
        <p name="StpDate">2013-07-29T00:00:00+00:00</p>
    </obj>
</Data>
</Object>

在这里，当操作属性为“更新”时，我需要进行删除和创建。

上面的节点有一个基于属性distName的父子关系，即A-1/B-1/C-1/D-1是A-1/B-1/C-1/D-1/E- 的父节点1 . 为了使更新操作正常工作，我需要先创建和删除父项，然后始终删除子项并创建。

无论输入源xml文件的顺序如何，如何实现这一点？

IE。具有类属性D的 obj 节点应该比E排在第一位。

预期输出 XML：

<?xml version="1.0"?>
<Object>
<Data type="plan" name="testAom" id="10">
<obj class="D" version="1.0" distName="A-1/B-1/C-1/D-1" operation="NEW_create">
<p name="Active">1</p>
<p name="Type">CPU</p>
<p name="StDate">2013-07-27T00:00:00+00:00</p>
<p name="StpDate">2013-07-29T00:00:00+00:00</p>
</obj>
<obj class="E" version="1.0" distName="A-1/B-1/C-1/D-1/E-1" operation="NEW_create">
<p name="dayOfWeek">0</p>
<p name="interval">10</p>
</obj>
<obj class="D" version="1.0" distName="A-1/B-1/C-1/D-2" operation="delete">
<p name="Active">1</p>
<p name="Type">CPU</p>
<p name="StDate">2013-07-27T00:00:00+00:00</p>
<p name="StpDate">2013-07-29T00:00:00+00:00</p>
</obj><obj class="D" version="1.0" distName="A-1/B-1/C-1/D-2" operation="create">
<p name="Active">1</p>
<p name="Type">CPU</p>
<p name="StDate">2013-07-27T00:00:00+00:00</p>
<p name="StpDate">2013-07-29T00:00:00+00:00</p>
</obj>
<obj class="E" version="1.0" distName="A-1/B-1/C-1/D-2/E-1" operation="delete">
<p name="dayOfWeek">0</p>
<p name="interval">10</p>
</obj><obj class="E" version="1.0" distName="A-1/B-1/C-1/D-2/E-1" operation="create">
<p name="dayOfWeek">0</p>
<p name="interval">10</p>
</obj>
</Data>
</Object>
4

1 回答 1

0

我可能在您的要求中遗漏了一些东西，但如果没有，那么更新只是删除和创建，并且可以在单个模板中完成。我的解决方案集中在行动上，而不是课堂上。我认为我的样式表完全符合您的要求，但它可能没有按照您的意愿进行。我希望它有所帮助。

t:\ftemp>type objects.xml 
<?xml version="1.0" encoding="UTF-8"?>
<Object>
<Data type="plan" name="testAom" id="10">

    <obj class="D" version="1.0" distName="A-1/B-1/C-1/D-1" operation="create" >
        <p name="Active">1</p>
        <p name="Type">CPU</p>
        <p name="StDate">2013-07-27T00:00:00+00:00</p>
        <p name="StpDate">2013-07-29T00:00:00+00:00</p>
    </obj>

    <obj class="E" version="1.0" distName="A-1/B-1/C-1/D-1/E-1" operation="create">
        <p name="dayOfWeek">0</p>
        <p name="interval">10</p>
    </obj>

    <obj class="E" version="1.0" distName="A-1/B-1/C-1/D-2/E-1" operation="update">
        <p name="dayOfWeek">0</p>
        <p name="interval">10</p>
    </obj>

    <obj class="D" version="1.0" distName="A-1/B-1/C-1/D-2" operation="update">
        <p name="Active">1</p>
        <p name="Type">CPU</p>
        <p name="StDate">2013-07-27T00:00:00+00:00</p>
        <p name="StpDate">2013-07-29T00:00:00+00:00</p>
    </obj>
</Data>
</Object>
t:\ftemp>call xslt objects.xml objects.xsl 
<?xml version="1.0" encoding="utf-8"?>
<Object>

   <Data type="plan" name="testAom" id="10">
      <obj class="D" version="1.0" distName="A-1/B-1/C-1/D-1" operation="New_create">
         <p name="Active">1</p>
         <p name="Type">CPU</p>
         <p name="StDate">2013-07-27T00:00:00+00:00</p>
         <p name="StpDate">2013-07-29T00:00:00+00:00</p>
      </obj>
      <obj class="E" version="1.0" distName="A-1/B-1/C-1/D-1/E-1" operation="New_create">
         <p name="dayOfWeek">0</p>
         <p name="interval">10</p>
      </obj>
      <obj class="D" version="1.0" distName="A-1/B-1/C-1/D-2" operation="delete">
         <p name="Active">1</p>
         <p name="Type">CPU</p>
         <p name="StDate">2013-07-27T00:00:00+00:00</p>
         <p name="StpDate">2013-07-29T00:00:00+00:00</p>
      </obj>
      <obj class="D" version="1.0" distName="A-1/B-1/C-1/D-2" operation="create">
         <p name="Active">1</p>
         <p name="Type">CPU</p>
         <p name="StDate">2013-07-27T00:00:00+00:00</p>
         <p name="StpDate">2013-07-29T00:00:00+00:00</p>
      </obj>
      <obj class="E" version="1.0" distName="A-1/B-1/C-1/D-2/E-1" operation="delete">
         <p name="dayOfWeek">0</p>
         <p name="interval">10</p>
      </obj>
      <obj class="E" version="1.0" distName="A-1/B-1/C-1/D-2/E-1" operation="create">
         <p name="dayOfWeek">0</p>
         <p name="interval">10</p>
      </obj>
   </Data>

</Object>
t:\ftemp>type objects.xsl 
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  version="1.0">

<xsl:output indent="yes"/>

<xsl:template match="Object/Data">
  <xsl:copy>
    <xsl:apply-templates select="@*"/>
    <!--results are in distName order-->
    <xsl:apply-templates select="obj">
      <xsl:sort select="@distName"/>
    </xsl:apply-templates>
  </xsl:copy>
</xsl:template>

<!--for creation, only the attribute changes, nothing else-->
<xsl:template match="obj[@operation='create']">
  <xsl:copy>
    <xsl:copy-of select="@*"/>
    <xsl:attribute name="operation">New_create</xsl:attribute>
    <xsl:apply-templates select="*"/>
  </xsl:copy>
</xsl:template>

<!--remove those marked for deletion-->
<xsl:template match="obj[@operation='delete']"/>

<!--remove and recreate those marked for update-->
<xsl:template match="obj[@operation='update']">
  <xsl:copy>
    <xsl:copy-of select="@*"/>
    <xsl:attribute name="operation">delete</xsl:attribute>
    <xsl:apply-templates select="*"/>
  </xsl:copy>
  <xsl:copy>
    <xsl:copy-of select="@*"/>
    <xsl:attribute name="operation">create</xsl:attribute>
    <xsl:apply-templates select="*"/>
  </xsl:copy>
</xsl:template>

<xsl:template match="@*|node()"><!--identity for all other nodes-->
  <xsl:copy>
    <xsl:apply-templates select="@*|node()"/>
  </xsl:copy>
</xsl:template>

</xsl:stylesheet>
t:\ftemp>rem Done!
于 2013-08-05T19:16:48.430 回答