输入XML：
<output>
<queryResults>
<record id="1">
<column name="VRIdTask">1319619</column>
<column name="MSSinergieTaskP">alt</column>
<column name="VRPlanId">11310224</column>
<column name="MSSinergieTaskNP">1319575</column>
</record>
<record id="2">
<column name="VRIdTask">1319619</column>
<column name="MSSinergieTaskP">alt</column>
<column name="VRPlanId">11310224</column>
<column name="MSSinergieTaskNP">1319623</column>
</record>
<record id="3">
<column name="VRIdTask">1319648</column>
<column name="MSSinergieTaskP"/>
<column name="VRPlanId">11310337</column>
<column name="MSSinergieTaskNP"/>
</record>
<record id="4">
<column name="VRIdTask">1319652</column>
<column name="MSSinergieTaskP">1319667</column>
<column name="VRPlanId">11310281</column>
<column name="MSSinergieTaskNP">ms</column>
</record>
<record id="5">
<column name="VRIdTask">1319652</column>
<column name="MSSinergieTaskP">mss2</column>
<column name="VRPlanId">11310281</column>
<column name="MSSinergieTaskNP">ms2</column>
</record>
<record id="6">
<column name="VRIdTask">111</column>
<column name="MSSinergieTaskP">222</column>
<column name="VRPlanId">333</column>
<column name="MSSinergieTaskNP">444</column>
</record>
<record id="7">
<column name="VRIdTask">111</column>
<column name="MSSinergieTaskP">555</column>
<column name="VRPlanId">333</column>
<column name="MSSinergieTaskNP">444</column>
</record>
</queryResults>
</output>
所需的输出XML：
<CMMD>
<parameters>
<t ids="alt,1319575,1319623"/>
<!--values from record 1 and 2-->
<!--for match on VRPlan ID get the distinct values from MSSinergieTaskP and MSSInergieTaskNP and concatenate-->
<action id="11310224"/>
</parameters>
</CMMD>
<CMMD>
<parameters>
<t ids="1319667,ms,mss2,ms2"/>
<!--values from record 4 and 5. record 3 is ignored because doesn't have any values in the 2 tags-->
<!--here we have no value that repeats itself in the 2 tags from each record so we concatenate every value-->
<action id="11310281"/>
</parameters>
</CMMD>
<CMMD>
<parameters>
<t ids="444,555,222"/>
<!--values from record 5 and 6. only MSSinergieTaskNP is not unique -->
<action id="333"/>
</parameters>
</CMMD>
当前的XSL，无效：
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes"/>
<xsl:key name="VRID" match="output/queryResults/record/column[@name='VRPlanId']" use="."/>
<xsl:variable name="MSTaskP" select="output/queryResults/record/column[@name='MSSinergieTaskP']"/>
<xsl:variable name="var_vrid" select="output/queryResults/record/column[@name='VRPlanId']"/>
<xsl:variable name="MSTaskNP" select="output/queryResults/record/column[@name='MSSinergieTaskNP']"/>
<xsl:template match="output">
<queryResults>
<xsl:apply-templates select="queryResults/record/parameter[@name='VRPlanId']/value[generate-id(.)=generate-id(key('VRID',.)[1])]"/>
</queryResults>
</xsl:template>
<xsl:template match="queryResults">
<xsl:for-each select="key('VRID', $var_vrid)">
<commun_params>
<value>
<xsl:value-of select="$MSTaskNP"/>
</value>
<value>
<xsl:value-of select="$MSTaskP"/>
</value>
</commun_params>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
目标是检查每个不同的VRPlanId值，我们构建上述结构，该结构连接来自//列[@name = MSSinergieTask P和MSSinergieTaskNP的每个记录（在VRPlanId上匹配）的每个不同值。 我的变量似乎不起作用。我正在考虑匹配VR计划ID值，然后用2个不同的变量检查我所需标签的不同值。
你能帮帮我吗？ 谢谢！答案 0 :(得分：0)
请检查下面的XSL（类似示例在这里XSLT group if condition is matched）：
def check_channel_exec_request(self,channel,command):
writemessage = channel.makefile("w")
writemessage.write("SOME COMMAND SUBMITTED")
writemessage.channel.send_exit_status(0)
channel.close()
return True
如果是以下XML：
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="xml" />
<xsl:template name="task-attr">
<!--parameter to filter per VRPlanId-->
<xsl:param name="param.VRPlanId"/>
<xsl:variable name="var.mstp">
<xsl:for-each select="/output/queryResults/record[column[@name='VRPlanId'] = $param.VRPlanId]">
<!--preventing empty blocks and duplicates for MSTP-->
<xsl:if test="string-length(column[@name='MSSinergieTaskP']) >0 and not(preceding::record[column[@name='MSSinergieTaskP']/text() = current()/column[@name='MSSinergieTaskP']/text()])">
<xsl:value-of select="concat(column[@name='MSSinergieTaskP'], ',')"/>
</xsl:if>
</xsl:for-each>
</xsl:variable>
<xsl:variable name="var.msonpc">
<xsl:for-each select="/output/queryResults/record[column[@name='VRPlanId'] = $param.VRPlanId]">
<!--preventing empty blocks and duplicates for MSONPC-->
<xsl:if test="string-length(column[@name='MSSinergieTaskNP']) >0 and not(preceding::record[column[@name='MSSinergieTaskNP']/text() = current()/column[@name='MSSinergieTaskNP']/text()])">
<xsl:value-of select="concat(column[@name='MSSinergieTaskNP'], ',')"/>
</xsl:if>
</xsl:for-each>
</xsl:variable>
<!--concat all non-duplicates MSTP and MSONPC without last delimiter-->
<xsl:value-of select="concat($var.mstp, substring($var.msonpc, 1, string-length($var.msonpc)-1))"/>
</xsl:template>
<xsl:template match="/">
<output>
<xsl:for-each select="/output/queryResults/record">
<xsl:if test ="not(preceding::record[column[@name='VRPlanId']/text() = current()/column[@name='VRPlanId']/text()])">
<xsl:variable name="task.id">
<xsl:call-template name="task-attr">
<!--as input parameter put non-duplicate VRPlanId-->
<xsl:with-param name="param.VRPlanId" select="column[@name='VRPlanId']"/>
</xsl:call-template>
</xsl:variable>
<!--if all non-duplicates MSTP and MSONPC will be blank block Cdo won't be created-->
<xsl:if test="string-length($task.id) >0">
<CMMD>
<parameters>
<task>
<xsl:attribute name="id">
<xsl:value-of select="$task.id"/>
</xsl:attribute>
</task>
<action>
<xsl:attribute name="id">
<xsl:value-of select="column[@name='VRPlanId']"/>
</xsl:attribute>
</action>
</parameters>
</CMMD>
</xsl:if>
</xsl:if>
</xsl:for-each>
</output>
</xsl:template>
</xsl:stylesheet>
结果如下：
<output>
<queryResults>
<record id="1">
<column name="VRIdTask">1319619</column>
<column name="MSSinergieTaskP">alt</column>
<column name="VRPlanId">11310224</column>
<column name="MSSinergieTaskNP">1319575</column>
</record>
<record id="2">
<column name="VRIdTask">1319619</column>
<column name="MSSinergieTaskP">alt</column>
<column name="VRPlanId">11310224</column>
<column name="MSSinergieTaskNP">1319623</column>
</record>
<record id="3">
<column name="VRIdTask">1319648</column>
<column name="MSSinergieTaskP"/>
<column name="VRPlanId">11310337</column>
<column name="MSSinergieTaskNP"/>
</record>
<record id="4">
<column name="VRIdTask">1319652</column>
<column name="MSSinergieTaskP">1319667</column>
<column name="VRPlanId">11310281</column>
<column name="MSSinergieTaskNP">ms</column>
</record>
<record id="5">
<column name="VRIdTask">1319652</column>
<column name="MSSinergieTaskP">mss2</column>
<column name="VRPlanId">11310281</column>
<column name="MSSinergieTaskNP">ms2</column>
</record>
<record id="6">
<column name="VRIdTask">111</column>
<column name="MSSinergieTaskP">222</column>
<column name="VRPlanId">333</column>
<column name="MSSinergieTaskNP">444</column>
</record>
<record id="7">
<column name="VRIdTask">111</column>
<column name="MSSinergieTaskP">555</column>
<column name="VRPlanId">333</column>
<column name="MSSinergieTaskNP">444</column>
</record>
</queryResults>
</output>