XSLT在concating时删除重复值

我的XML如下所示：

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<BATCHES>
    <item>
        <Material>1000000079</Material>
        <Description>330 Bulk</Description>
        <Tank>T123</Tank>
        <Batch>2013225287</Batch>
        <Quantity>510</Quantity>
    </item>
    <item>
        <Material>1000000079</Material>
        <Description>330 Bulk</Description>
        <Tank>T123</Tank>
        <Batch>2013225301</Batch>
        <Quantity>520</Quantity>
    </item>
    <item>
        <Material>1000000196</Material>
        <Description>340R Bulk</Description>
        <Tank>T700</Tank>
        <Batch>1000188378</Batch>
        <Quantity>510</Quantity>
    </item>
    <item>
        <Material>1000002754</Material>
        <Description>43 Bulk</Description>
        <Tank>T515</Tank>
        <Batch>2013180125</Batch>
        <Quantity>300</Quantity>
    </item>
    <item>
        <Material>1000002754</Material>
        <Description>43 Bulk</Description>
        <Tank>T515</Tank>
        <Batch>2013203124</Batch>
        <Quantity>200</Quantity>
    </item>
    <item>
        <Material>1000002754</Material>
        <Description>43 Bulk</Description>
        <Tank>T515</Tank>
        <Batch>2013214839</Batch>
        <Quantity>700</Quantity>
    </item>
    <item>
        <Material>1000002754</Material>
        <Description>43 Bulk</Description>
        <Tank>T517</Tank>
        <Batch>2013214342</Batch>
        <Quantity>890</Quantity>
    </item>
</BATCHES>

<item>
            <Material>1000002754</Material>
            <Description>43 Bulk</Description>
            <Tank>T515</Tank>
            <Batch>2013214839</Batch>
            <Quantity>700</Quantity>
        </item>

1000000079
330散装
T123
2013225287
510
1000000079
330散装
T123
2013225301
520
1000000196
340R散装
T700
1000188378
510
1000002754
43散装
T515
2013180125
300
1000002754
43散装
T515
2013203124
200
1000002754
43散装
T515
2013214839
700
1000002754
43散装
T517
2013214342
890

我的原始XSLT如下所示：

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
    <xsl:output encoding="UTF-8" indent="yes" method="xml" version="1.0"/>
    <xsl:template match="/">
        <Rowsets>
            <Rowset>
                <xsl:variable name="materials" select=".//item[Tank!='RECV' and Tank!='PARK'] "/>
                <xsl:for-each select="$materials">
                    <xsl:if test="generate-id(.)=                       generate-id($materials[Material=current()/Material])">
                        <Row>
                            <Material>
                                <xsl:value-of select="Material"/>
                            </Material>
                            <Description>
                                <xsl:value-of select="Description"/>
                            </Description>
                            <Value>
                                <xsl:for-each select="$materials[Material=current()/Material]/Tank">
                                    <xsl:if test="node()">
                                        <xsl:value-of select="concat(.,'||')"/>
                                    </xsl:if>
                                </xsl:for-each>
                            </Value>
                        </Row>
                    </xsl:if>
                </xsl:for-each>
            </Rowset>
        </Rowsets>
    </xsl:template>
</xsl:stylesheet>

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<Rowsets>
<Rowset>
<Row>
<Material>1000000079</Material>
<Description>330 Bulk</Description>
<Value>T123||T123||</Value>
</Row>
<Row>
<Material>1000000196</Material>
<Description>340R Bulk</Description>
<Value>T700||</Value>
</Row>
<Row>
<Material>1000002754</Material>
<Description>43 Bulk</Description>
<Value>T515||T517||</Value>
</Row>
</Rowset>
</Rowsets>

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<Rowsets>
<Rowset>
<Row>
<Material>1000000079</Material>
<Description>330 Bulk</Description>
<Value>T123||</Value>
</Row>
<Row>
<Material>1000000196</Material>
<Description>340R Bulk</Description>
<Value>T700||</Value>
</Row>
<Row>
<Material>1000002754</Material>
<Description>43 Bulk</Description>
<Value>T517||</Value>
</Row>
</Rowset>
</Rowsets>

此XSLT的结果如下所示：

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
    <xsl:output encoding="UTF-8" indent="yes" method="xml" version="1.0"/>
    <xsl:template match="/">
        <Rowsets>
            <Rowset>
                <xsl:variable name="materials" select=".//item[Tank!='RECV' and Tank!='PARK'] "/>
                <xsl:for-each select="$materials">
                    <xsl:if test="generate-id(.)=                       generate-id($materials[Material=current()/Material])">
                        <Row>
                            <Material>
                                <xsl:value-of select="Material"/>
                            </Material>
                            <Description>
                                <xsl:value-of select="Description"/>
                            </Description>
                            <Value>
                                <xsl:for-each select="$materials[Material=current()/Material]/Tank">
                                    <xsl:if test="node()">
                                        <xsl:value-of select="concat(.,'||')"/>
                                    </xsl:if>
                                </xsl:for-each>
                            </Value>
                        </Row>
                    </xsl:if>
                </xsl:for-each>
            </Rowset>
        </Rowsets>
    </xsl:template>
</xsl:stylesheet>

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<Rowsets>
<Rowset>
<Row>
<Material>1000000079</Material>
<Description>330 Bulk</Description>
<Value>T123||T123||</Value>
</Row>
<Row>
<Material>1000000196</Material>
<Description>340R Bulk</Description>
<Value>T700||</Value>
</Row>
<Row>
<Material>1000002754</Material>
<Description>43 Bulk</Description>
<Value>T515||T517||</Value>
</Row>
</Rowset>
</Rowsets>

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<Rowsets>
<Rowset>
<Row>
<Material>1000000079</Material>
<Description>330 Bulk</Description>
<Value>T123||</Value>
</Row>
<Row>
<Material>1000000196</Material>
<Description>340R Bulk</Description>
<Value>T700||</Value>
</Row>
<Row>
<Material>1000002754</Material>
<Description>43 Bulk</Description>
<Value>T517||</Value>
</Row>
</Rowset>
</Rowsets>

1000000079
330散装
T123 | | T123||
1000000196
340R散装
T700||
1000002754
43散装
T515 | T517||

我想删除重复的坦克，同时将其浓缩在值字段中。因此，我将XSLT更改为以下内容：

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
    <xsl:output encoding="UTF-8" indent="yes" method="xml" version="1.0"/>
    <xsl:template match="/">
        <Rowsets>
            <Rowset>
                <xsl:variable name="materials" select=".//item[Tank!='RECV' and Tank!='PARK' and Quantity &gt; 500]"/>
                <xsl:for-each select="$materials">
                    <xsl:if test="generate-id(.)= generate-id($materials[Material=current()/Material])">
                        <Row>
                            <Material>
                                <xsl:value-of select="Material"/>
                            </Material>
                            <Description>
                                <xsl:value-of select="Description"/>
                            </Description>
                            <Value>
                                <xsl:for-each select="$materials[Material=current()/Material]/Tank[not(.=preceding::Tank)]">
                                    <xsl:if test="node()">
                                        <xsl:value-of select="concat(.,'||')"/>
                                    </xsl:if>
                                </xsl:for-each>
                            </Value>
                        </Row>
                    </xsl:if>
                </xsl:for-each>
            </Rowset>
        </Rowsets>
    </xsl:template>
</xsl:stylesheet>

现在，我的结果如下所示：

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
    <xsl:output encoding="UTF-8" indent="yes" method="xml" version="1.0"/>
    <xsl:template match="/">
        <Rowsets>
            <Rowset>
                <xsl:variable name="materials" select=".//item[Tank!='RECV' and Tank!='PARK'] "/>
                <xsl:for-each select="$materials">
                    <xsl:if test="generate-id(.)=                       generate-id($materials[Material=current()/Material])">
                        <Row>
                            <Material>
                                <xsl:value-of select="Material"/>
                            </Material>
                            <Description>
                                <xsl:value-of select="Description"/>
                            </Description>
                            <Value>
                                <xsl:for-each select="$materials[Material=current()/Material]/Tank">
                                    <xsl:if test="node()">
                                        <xsl:value-of select="concat(.,'||')"/>
                                    </xsl:if>
                                </xsl:for-each>
                            </Value>
                        </Row>
                    </xsl:if>
                </xsl:for-each>
            </Rowset>
        </Rowsets>
    </xsl:template>
</xsl:stylesheet>

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<Rowsets>
<Rowset>
<Row>
<Material>1000000079</Material>
<Description>330 Bulk</Description>
<Value>T123||T123||</Value>
</Row>
<Row>
<Material>1000000196</Material>
<Description>340R Bulk</Description>
<Value>T700||</Value>
</Row>
<Row>
<Material>1000002754</Material>
<Description>43 Bulk</Description>
<Value>T515||T517||</Value>
</Row>
</Rowset>
</Rowsets>

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<Rowsets>
<Rowset>
<Row>
<Material>1000000079</Material>
<Description>330 Bulk</Description>
<Value>T123||</Value>
</Row>
<Row>
<Material>1000000196</Material>
<Description>340R Bulk</Description>
<Value>T700||</Value>
</Row>
<Row>
<Material>1000002754</Material>
<Description>43 Bulk</Description>
<Value>T517||</Value>
</Row>
</Rowset>
</Rowsets>

1000000079
330散装
T123||
1000000196
340R散装
T700||
1000002754
43散装
T517||

它删除了材料100000079的重复储罐T123，但对于材料10000002754，它甚至删除了T515，该储罐应出现在值字段中，因为其数量大于500，用于以下操作：

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<BATCHES>
    <item>
        <Material>1000000079</Material>
        <Description>330 Bulk</Description>
        <Tank>T123</Tank>
        <Batch>2013225287</Batch>
        <Quantity>510</Quantity>
    </item>
    <item>
        <Material>1000000079</Material>
        <Description>330 Bulk</Description>
        <Tank>T123</Tank>
        <Batch>2013225301</Batch>
        <Quantity>520</Quantity>
    </item>
    <item>
        <Material>1000000196</Material>
        <Description>340R Bulk</Description>
        <Tank>T700</Tank>
        <Batch>1000188378</Batch>
        <Quantity>510</Quantity>
    </item>
    <item>
        <Material>1000002754</Material>
        <Description>43 Bulk</Description>
        <Tank>T515</Tank>
        <Batch>2013180125</Batch>
        <Quantity>300</Quantity>
    </item>
    <item>
        <Material>1000002754</Material>
        <Description>43 Bulk</Description>
        <Tank>T515</Tank>
        <Batch>2013203124</Batch>
        <Quantity>200</Quantity>
    </item>
    <item>
        <Material>1000002754</Material>
        <Description>43 Bulk</Description>
        <Tank>T515</Tank>
        <Batch>2013214839</Batch>
        <Quantity>700</Quantity>
    </item>
    <item>
        <Material>1000002754</Material>
        <Description>43 Bulk</Description>
        <Tank>T517</Tank>
        <Batch>2013214342</Batch>
        <Quantity>890</Quantity>
    </item>
</BATCHES>

<item>
            <Material>1000002754</Material>
            <Description>43 Bulk</Description>
            <Tank>T515</Tank>
            <Batch>2013214839</Batch>
            <Quantity>700</Quantity>
        </item>

1000002754
43散装
T515
2013214839
700

我做错了什么？

好的，我知道你的问题了

为此，需要基于密钥的解决方案： 试试这个：

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
    <xsl:output encoding="UTF-8" indent="yes" method="xml" version="1.0"/>
    <xsl:key name="kMaterial" match="item[Tank!='RECV' and Tank!='PARK' and Quantity &gt; 500]" 
             use="Material"/>
    <xsl:key name="kMaterialTank" match="item[Tank!='RECV' and Tank!='PARK' and Quantity &gt; 500]"
             use="concat(Material,'|', Tank)"/>


    <xsl:template match="/">
        <Rowsets>
            <Rowset>
                <xsl:variable name="materials" select=".//item[Tank!='RECV' and Tank!='PARK'] "/>
                <xsl:for-each select="//item[ generate-id(.) = generate-id( key('kMaterial', Material)[1]) ]" >
                    <xsl:variable name="m" select="Material" />
                        <Row>
                            <Material>
                                <xsl:value-of select="Material"/>,<xsl:value-of select="$m"/>
                            </Material>
                            <Description>
                                <xsl:value-of select="Description"/>
                            </Description>
                            <Value>
                                <xsl:for-each select="//item[ generate-id(.) =
                                                      generate-id( key('kMaterialTank', concat( $m,'|', Tank))[1])]" mode="tank" >
                                    <xsl:apply-templates select="." mode="tank" />
                                </xsl:for-each>
                            </Value>
                        </Row>
                </xsl:for-each>
            </Rowset>
        </Rowsets>
    </xsl:template>
    <xsl:template match="item" mode="tank" >
        <xsl:value-of select="Tank"/>
        <xsl:text>||</xsl:text>
    </xsl:template>

</xsl:stylesheet>

,
||

将生成以下输出：

<?xml version="1.0" encoding="UTF-8"?>
<Rowsets>
  <Rowset>
    <Row>
      <Material>1000000079,1000000079</Material>
      <Description>330 Bulk</Description>
      <Value>T123||</Value>
    </Row>
    <Row>
      <Material>1000000196,1000000196</Material>
      <Description>340R Bulk</Description>
      <Value>T700||</Value>
    </Row>
    <Row>
      <Material>1000002754,1000002754</Material>
      <Description>43 Bulk</Description>
      <Value>T515||T517||</Value>
    </Row>
  </Rowset>
</Rowsets>

1000000079,1000000079
330散装
T123||
1000000196,1000000196
340R散装
T700||
1000002754,1000002754
43散装
T515 | T517||

我最后一次见面有什么问题？似乎仍然有效。另外，请考虑将一些答案标记为有效或告诉什么是错误的。看看常见问题解答。如果我将XSLT应用于上述XML，我将给出以下结果：100000079330批量T123 | | T123 | 1000000196 340R批量T700 | | 1000002754 43批量T515 | | T517 |它将T123 | T123作为第一个材质，并且不会删除重复项：（不，抱歉，它不应该，也不是。你真的尝试我的答案吗？它不考虑数量，因为它不是在原来的问题。对于原来的问题，它是有效的BU后添加数量，它只是不删除重复坦克从第一材料。我猜它符合我的要求。辉煌。感谢和欣赏Y我们的耐心。