如何使用xslt对min值进行排序？

Question

下面是我的xml文件test.xml

<products>
    <supplier>
        <supplierid>1001</supplierid>
        <totalprice>30</totalprice>
        <items>
            <item>Pen</item> 
            <price>10</price>
        </items>
        <items>
            <item>Pencil</item> 
            <price>5</price>
        </items>
        <items>
            <item>Bag</item> 
            <price>15</price>
        </items>
    </supplier>
    <supplier>
        <supplierid>1001</supplierid>
        <totalprice>23</totalprice>
        <items>
            <item>Pencil</item> 
            <price>8</price>
        </items>
        <items>
            <item>Pen</item> 
            <price>5</price>
        </items>
        <items>
            <item>Bag</item> 
            <price>10</price>
        </items>        
    </supplier>
    <supplier>
        <supplierid>1001</supplierid>
        <totalprice>24</totalprice>
        <items>
            <item>Paper Box</item> 
            <price>7</price>
        </items>
        <items>
            <item>Pen</item> 
            <price>4</price>
        </items>
        <items>
            <item>Bag</item> 
            <price>13</price>
        </items>
    </supplier>
    <supplier>
        <supplierid>1002</supplierid>
        <totalprice>26</totalprice>
        <items>
            <item>Sharpner Box</item> 
            <price>7</price>
        </items>
        <items>
            <item>Pen</item> 
            <price>4</price>
        </items>
        <items>
            <item>Bag</item> 
            <price>15</price>
        </items>
    </supplier>
</products>

我需要使用xsl 1.0或2.0

获取如下输出

<products>
    <supplier>
        <supplierid>1001</supplierid>
        <totalprice>23</totalprice>
        <items>
            <item>Pencil</item> 
            <price>8</price>
        </items>
        <items>
            <item>Pen</item> 
            <price>5</price>
        </items>
        <items>
            <item>Bag</item> 
            <price>10</price>
        </items>        
    </supplier>
    <supplier>
        <supplierid>1001</supplierid>
        <totalprice>24</totalprice>
        <items>
            <item>Paper Box</item> 
            <price>7</price>
        </items>
        <items>
            <item>Pen</item> 
            <price>4</price>
        </items>
        <items>
            <item>Bag</item> 
            <price>13</price>
        </items>
    </supplier>
    <supplier>
        <supplierid>1002</supplierid>
        <totalprice>26</totalprice>
        <items>
            <item>Sharpner Box</item> 
            <price>7</price>
        </items>
        <items>
            <item>Pen</item> 
            <price>4</price>
        </items>
        <items>
            <item>Bag</item> 
            <price>15</price>
        </items>
    </supplier>
</products>

1. 从“相同供应商”中选择较低的价格，例如<supplierid>1001</supplierid>
2. 基于子节点<items>
3. 1001/23和1001/30基于<items><item>相同。我们需要从列表中删除1001/30。因为价格很高

Answer 1

基于您希望根据供应商的总价格对供应商进行分类的假设：

<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema" version="2.0">
<xsl:template match="/">
<products>
  <xsl:for-each select="products/supplier">  
    <xsl:sort select="totalprice" data-type="number" order="ascending"/>  
      <xsl:copy-of select="."/>  
  </xsl:for-each> 
</products>
</xsl:template>
</xsl:transform>

Answer 2

这将首先根据supplierid进行排序，然后根据totalprice

进行排序

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:template match="@*|node()">
        <xsl:copy>
            <xsl:apply-templates select="@*|node()">
                <xsl:sort select="supplierid"/>  <!-- 1st level sorting -->
                <xsl:sort select="totalprice"/>  <!-- 2nd level sorting -->
                <xsl:sort select="price"/>       <!-- 3rd level sorting -->
            </xsl:apply-templates>
        </xsl:copy>
    </xsl:template>
</xsl:stylesheet>

注意：您可以使用名为Online XSLT Test Tool的免费在线工具来测试您的xml / xslt文件。