我在组合多个密钥以获取更改记录时遇到问题。
我有2条XML记录。文件1和文件2
目标是创建一个包含4个部分的表。相同，更改，添加和删除。
两个文档中具有相同rec_no，part_no，ext_qty的元素应该在相同的子节中。 Document1中没有Document2中的元素需要在Delete子部分下 Document2中没有Document2中的元素需要在Add子部分下 上述3个条件中不存在的元素应在变更小节内。例如，有一个记录 这两个文件以及数量或部件号或描述都有任何变化
现在我可以毫无问题地添加前3个部分，问题出现在第4个条件中。我无法结合前三个 得到这些条件的条件。
这是带有我的评论的输出表。这里的记录999在删除部分，不应该在更改子部分
----------------------------------------------------
Section PartNo RecNo Desc Doc-1 Qty Doc-2 Qty Total
----------------------------------------------------
Same 111 aaa Desc1 1 1 200
----------------------------------------------------
Same Total 100
----------------------------------------------------
Change 222 bbb Desc2 2 3 200
Change 333 ccc Desc3 3 3 200
Change 444 ddd Desc4 6 4 500
Change 999 ggg Desc9 2 0 100
----------------------------------------------------
Change Total 400
----------------------------------------------------
Add 666 ff Desc4 0 6 400
----------------------------------------------------
Add Total 0
----------------------------------------------------
Delete 999 ggg Desc9 2 0 100
----------------------------------------------------
Delete Total 0
----------------------------------------------------
Grand Total 500
----------------------------------------------------
这是我的XML
<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet type="text/xsl" href="sample.xslt"?>
<Logia>
<DocHeader>
<Document>
<Downto>
<part_no>111</part_no>
<rec_no>aaa</rec_no>
<desc>Desc1</desc>
<ext_qty>1</ext_qty>
<mat_cost>100.00</mat_cost>
</Downto>
<Downto>
<part_no>222</part_no>
<rec_no>bbb</rec_no>
<desc>Desc2</desc>
<ext_qty>2</ext_qty>
<mat_cost>100.00</mat_cost>
</Downto>
<Downto>
<part_no>333</part_no>
<rec_no>ccc</rec_no>
<desc>Desc3</desc>
<ext_qty>3</ext_qty>
<mat_cost>100.00</mat_cost>
</Downto>
<Downto>
<part_no>444</part_no>
<rec_no>ddd</rec_no>
<desc>Desc4</desc>
<ext_qty>6</ext_qty>
<mat_cost>100.00</mat_cost>
</Downto>
<Downto>
<part_no>999</part_no>
<rec_no>ggg</rec_no>
<desc>Desc9</desc>
<ext_qty>2</ext_qty>
<mat_cost>100.00</mat_cost>
</Downto>
</Document>
<Document>
<Downto>
<part_no>111</part_no>
<rec_no>aaa</rec_no>
<desc>Desc1</desc>
<ext_qty>1</ext_qty>
<mat_cost>100.00</mat_cost>
</Downto>
<Downto>
<part_no>222</part_no>
<rec_no>bbb</rec_no>
<desc>Desc3</desc>
<ext_qty>3</ext_qty>
<mat_cost>100.00</mat_cost>
</Downto>
<Downto>
<part_no>333</part_no>
<rec_no>bbb</rec_no>
<desc>Desc3</desc>
<ext_qty>3</ext_qty>
<mat_cost>100.00</mat_cost>
</Downto>
<Downto>
<part_no>444</part_no>
<rec_no>ddd</rec_no>
<desc>Desc4</desc>
<ext_qty>4</ext_qty>
<mat_cost>400.00</mat_cost>
</Downto>
<Downto>
<part_no>666</part_no>
<rec_no>ff</rec_no>
<desc>Desc4</desc>
<ext_qty>6</ext_qty>
<mat_cost>400.00</mat_cost>
</Downto>
</Document>
</DocHeader>
</Logia>
我的XSL如下
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="html" omit-xml-declaration="yes" version="1.0" encoding="utf-8" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:key name="MAT1PARTKEY" match="Document[1]/Downto" use="part_no" />
<xsl:key name="MAT2PARTKEY" match="Document[2]/Downto" use="part_no" />
<xsl:key name="MATERIALBYPARTNO" match="Document/Downto" use="part_no" />
<xsl:key name="MATERIAL2BYKEY" match="Document[2]/Downto" use="concat(rec_no, '||', part_no, '||', ext_qty)" />
<xsl:key name="MATERIALKEY" match="Document[1]/Downto" use="concat(rec_no, '||', part_no, '||', ext_qty)" />
<xsl:template match="/Logia/DocHeader">
<table border="1">
<!-- header -->
<tr>
<th>Section</th>
<th>PartNo</th>
<th>RecNo</th>
<th>Desc</th>
<th>Doc-1 Qty</th>
<th>Doc-2 Qty</th>
<th>Total</th>
</tr>
<!-- same -->
<xsl:variable name="same" select="Document[1]/Downto[key('MATERIAL2BYKEY', concat(rec_no, '||', part_no, '||', ext_qty))]" />
<xsl:apply-templates select="$same">
<xsl:with-param name="section">Same</xsl:with-param>
</xsl:apply-templates>
<xsl:variable name="same-total" select="sum($same/mat_cost)" />
<tr>
<td colspan="6">Same Total</td>
<th><xsl:value-of select="$same-total"/></th>
</tr>
<!-- change -->
<xsl:variable name="change" select="Document[1]/Downto[not(key('MATERIAL2BYKEY', concat(rec_no, '||', part_no, '||', ext_qty)))]" />
<xsl:apply-templates select="$change">
<xsl:with-param name="section">Change</xsl:with-param>
</xsl:apply-templates>
<xsl:variable name="change-total" select="sum($change/mat_cost)" />
<tr>
<td colspan="6">Change Total</td>
<th><xsl:value-of select="$change-total"/></th>
</tr>
<!-- Add -->
<xsl:variable name="add" select="Document[2]/Downto[not(key('MAT1PARTKEY', part_no ))]" />
<xsl:apply-templates select="$add">
<xsl:with-param name="section">Add</xsl:with-param>
</xsl:apply-templates>
<xsl:variable name="add-total" select="sum($add/Value)" />
<tr>
<td colspan="6">Add Total</td>
<th><xsl:value-of select="$add-total"/></th>
</tr>
<!-- delete -->
<xsl:variable name="delete" select="Document[1]/Downto[not(key('MAT2PARTKEY', part_no ))]" />
<xsl:apply-templates select="$delete">
<xsl:with-param name="section">Delete</xsl:with-param>
</xsl:apply-templates>
<xsl:variable name="delete-total" select="sum($delete/Value)" />
<tr>
<td colspan="6">Delete Total</td>
<th><xsl:value-of select="$delete-total"/></th>
</tr>
<!-- grand total -->
<tr>
<th colspan="6">Grand Total</th>
<th><xsl:value-of select="$same-total + $change-total"/></th>
</tr>
</table>
</xsl:template>
<xsl:template match="Downto">
<xsl:param name="section"/>
<xsl:if test="generate-id() = generate-id(key('MATERIALBYPARTNO', part_no)[1])">
<tr>
<td><xsl:value-of select="$section"/></td>
<td><xsl:value-of select="part_no"/></td>
<td><xsl:value-of select="rec_no"/></td>
<td><xsl:value-of select="desc"/></td>
<td><xsl:value-of select="sum(key('MAT1PARTKEY', part_no)/ext_qty)"/></td>
<td><xsl:value-of select="sum(key('MAT2PARTKEY', part_no)/ext_qty)"/></td>
<td><xsl:value-of select="sum(key('MATERIALBYPARTNO', part_no)/mat_cost)"/></td>
</tr>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
答案 0 :(得分：1)
<xsl:variable name="change" select="Document[1]/Downto[
key('MAT2PARTKEY', part_no) and not(
key('MATERIAL2BYKEY', concat(rec_no, '||', part_no, '||', ext_qty))
)
]" />