xslt - anyone please write XSLT code for this xml?

Question

<?xml version="1.0" encoding="UTF-8"?>
<school>
<classes>
    <class>
        <name>DEPT-NAME</name>
        <place>ROOM-NO</place>
    </class>
</classes>
<alldata>
    <data>
        <value>CSE</value>
        <value>101</value>
    </data>
    <data>
        <value>IT</value>
        <value>202</value>
    </data>
</alldata>
<students>
    <student>
        <DEPT-NAME>CSE</DEPT-NAME>
        <name>Jhon</name>
        <roll>111</roll>
    </student>
    <student>
        <DEPT-NAME>CSE</DEPT-NAME>
        <name>Zubi</name>
        <roll>112</roll>
    </student>
    <student>
        <DEPT-NAME>IT</DEPT-NAME>
        <name>Jack</name>
        <roll>121</roll>
    </student>
    <student>
        <DEPT-NAME>IT</DEPT-NAME>
        <name>Razz</name>
        <roll>122</roll>
    </student>
</students>
</school>

I want a csv output like

DEPT-NAME ROOM-NO NAME ROLLNO
CSE 101 Jhon 111
__________Zubi 112
IT 202 Jack 121
__________Razz 122

I was trying to do like this way but it did't work

<?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:text>SCHOOL</xsl:text>

        <xsl:variable name="StudentCSE">
            <xsl:for-each select="school/students/student[DEPT-NAME='CSE']">
                <xsl:value-of select="name"/><xsl:text>,</xsl:text>
                <xsl:value-of select="roll"/>
            </xsl:for-each>
        </xsl:variable>

        <xsl:variable name="Value">
        <xsl:for-each select="school/alldata/data">
                    <xsl:text>&#010;</xsl:text>
                    <xsl:for-each select="value" >
                        <xsl:value-of select="."/><xsl:text>,</xsl:text>
                    </xsl:for-each>
                            <xsl:copy-of select="$StudentCSE"/>
                    </xsl:for-each>
        </xsl:variable>

        <xsl:for-each select="school/classes/class">
                <xsl:text>&#010;</xsl:text>
                <xsl:value-of select="name"/><xsl:text>,</xsl:text>
                <xsl:value-of select="place"/><xsl:text>,NAME,ROll</xsl:text>
                <xsl:copy-of select="$Value"/>
        </xsl:for-each>
        </xsl:template>
</xsl:stylesheet>

score 2 · Accepted Answer

您可能需要重新格式化，因为为简单起见，我删除了您的许多元素，但要解决您的问题，请尝试使用 <xsl:key> 创建教室查找。

<xsl:key> 让我们使用数据节点作为有效负载并使用数据的第一个值元素的内容作为键来创建一个哈希映射/字典：

<?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:key name="class-lookup" match="school/alldata/data" use="value[1]" />

   <xsl:template match="/">
      <!-- header -->
      <xsl:for-each select="school/classes/class">
         <xsl:value-of select="name"/>, <xsl:value-of select="place"/>, NAME, ROll
      </xsl:for-each>

      <!-- data -->
      <xsl:for-each select="school/students/*">
         <xsl:text>&#10;</xsl:text>
         <xsl:value-of select="DEPT-NAME"/>, <xsl:value-of select="key('class-lookup', DEPT-NAME)/value[2]" />, <xsl:value-of select="name"/>,  <xsl:value-of select="roll"/>
      </xsl:for-each>

   </xsl:template>
</xsl:stylesheet>

输出：

DEPT-NAME, ROOM-NO, NAME, ROll

CSE, 101, Jhon,  111
CSE, 101, Zubi,  112
IT, 202, Jack,  121
IT, 202, Razz,  122

xslt - anyone please write XSLT code for this xml?

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