XSLT-分组和总和

Question

我想按类型对值进行分组，并使用下面的XML在单行中获取相似类型的总工资总额。 我提供了XML的样本数据和我想要实现的预期输出。

<--- XML数据---->

<Payroll_Data>
<EmpId>1000</EmpId>
<FirstName>Mark</FirstName>
<LastName>Henry</LastName>
<Salary>
    <Type>B</Type>   
    <GrossPay>1000.50</GrossPay>
</Salary>
<Salary>
    <Type>B</Type>   
    <GrossPay>847.50</GrossPay>
</Salary>
<Salary>
    <Type>X</Type>   
    <GrossPay>820</GrossPay>
</Salary>
</Payroll_Data>
<Payroll_Data>
<EmpId>1001</EmpId>
<FirstName>John</FirstName>
<LastName>Diggle</LastName>
<Salary>
    <Type>B</Type>   
    <GrossPay>800.98</GrossPay>
</Salary>
<Salary>
    <Type>X</Type>   
    <GrossPay>630.50</GrossPay>
</Salary>
<Salary>
    <Type>X</Type>   
    <GrossPay>600.50</GrossPay>
</Salary>

</Payroll_Data>

<----预期结果---->

EmpId   FirstName   LastName    Type    GrossPay    Sum of Grosspay by Type
1000    Mark        Henry       B       1000.50     1847.99
1000    Mark        Henry       B       847.49            
1000    Mark        Henry       X       820         820
1001    John        Diggle      B       800.98      800.98
1001    John        Diggle      X       630.50      1231
1001    John        Diggle      X       600.50      

Answer 1

就像@ ar1991说的一样，但我认为是：

 <xsl:template match="Payroll_Data">
      <xsl:for-each-group select="Salary" group-by="Type">
        <xsl:for-each select="current-group()">
           <xsl:value-of select="../(EmpId, FirstName, LastName), Type, GrossPay, 
              if (position()=1) then sum(current-group()/GrossPay) else ''" 
                         separator="&#9;"/>
          <xsl:text>&#10;</xsl:text>
        </xsl:for-each>
      </xsl:for-each-group>
  </xsl:template>

Answer 2

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    version="3.0">

  <xsl:output method="text"/>
  <xsl:variable name="comma" select="','"/>

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

  <xsl:template match="Payroll_Data">
      <xsl:for-each-group select="Salary" group-by="Type">
      <xsl:value-of select="../(EmpId, FirstName, LastName), Type, GrossPay, sum(current-group()/GrossPay)" separator="&#9;"/>
      <xsl:text>&#10;</xsl:text>
      </xsl:for-each-group>
  </xsl:template>

</xsl:stylesheet>