是否使用XSLT在XML文件中显示重复的值？

Question

我对XSLT完全不熟悉。下面的输入文件的标记中有重复的值，我的要求是使用XSLT在<PGS>中显示<Rip>的所有重复值。

<Rip>是随机值，它将被复制到另一个标签中。我们需要识别<RIP>标记值与重复项匹配的位置。

如何使用XSLT只显示重复的标记<PGS>？

输入文件：

<?xml version="1.0" encoding="UTF-8"?>
<Rows>
    <PGS>
    <Rip>93S981371 </Rip>
    <Settled>NO</Settled>
    <MaturityDate>1/1/2025</MaturityDate>
    <RemainingFace>105000000</RemainingFace>
    <CurrentFace>0</CurrentFace>
    </PGS>
    <PGS>
    <Rip>02R030483 </Rip>
    <Settled>YES</Settled>
    <MaturityDate>9/8/2025</MaturityDate>
    <Remaining-Face>285000000</RemainingFace>
    <CurrentFace>0</CurrentFace>
    </PGS>
    <PGS>
    <Rip>77344444 </Rip>
    <Settled>YES</Settled>
    <MaturityDate>9/8/2025</MaturityDate>
    <Remaining-Face>285000000</RemainingFace>
    <CurrentFace>0</CurrentFace>
    </PGS>
    <PGS>
    <Rip>02R030483 </Rip>
    <Settled>NO</Settled>
    <MaturityDate>9/8/2025</MaturityDate>
    <Remaining-Face>285000000</RemainingFace>
    <CurrentFace>0</CurrentFace>
    </PGS>
    <PGS>
    <Rip>93S981371 </Rip>
    <Settled>YES</Settled>
    <MaturityDate>1/1/2025</MaturityDate>
    <Remaining-Face>405000000</RemainingFace>
    <CurrentFace>0</CurrentFace>
    </PGS>
</Rows>

预期输出文件：

<?xml version="1.0"?>
<Rows>
<PGS>
<Rip>93S981371 </Rip>
<Settled>NO</Settled>
<MaturityDate>1/1/2025</MaturityDate>
<RemainingFace>105000000</RemainingFace>
<CurrentFace>0</CurrentFace>
</PGS>
 <PGS>
<Rip>93S981371 </Rip>
<Settled>YES</Settled>
<MaturityDate>1/1/2025</MaturityDate>
<Remaining-Face>405000000</RemainingFace>
<CurrentFace>0</CurrentFace>
</PGS>
<PGS>
<Rip>02R030483 </Rip>
<Settled>YES</Settled>
<MaturityDate>9/8/2025</MaturityDate>
<Remaining-Face>285000000</RemainingFace>
<CurrentFace>0</CurrentFace>
</PGS>
</PGS>
<Rip>02R030483 </Rip>
<Settled>NO</Settled>
<MaturityDate>9/8/2025</MaturityDate>
<Remaining-Face>285000000</RemainingFace>
<CurrentFace>0</CurrentFace>
</PGS>

Answer 1

你的问题的答案是：

首先定义一个密钥，它通过PGS的Rip值来标识它，例如

<xsl:key name="pgs" match="PGS" use="Rip" />

然后匹配(或复制)具有多个“相关”值的PGS元素：

PGS[count(key('pgs', Rip)) > 1]

即，它们与自身之外的另一个PGS元素相匹配。