java - XML 的 XSL 排序

Question

请找到输入和输出 xml 文件。 XML 在“Code”节点上排序(按 CodeValue 排序)。

输入 XML

<?xml version="1.0" encoding="UTF-8"?>
<Service>
    <Account>
        <AccountNumber>AB1234</AccountNumber>       
        <Code>
            <CodeType>ABC</CodeType>
            <CodeValue>3456</CodeValue>
        </Code>
        <Code>
            <CodeType>ZCR</CodeType>
            <CodeValue>1234</CodeValue>
        </Code>
        <Bonus>
            <BonusDescription>INCR</BonusDescription>
            <BonusOfferNumber>1004</BonusOfferNumber>
        </Bonus>
        <Bonus>
            <BonusDescription>BNP</BonusDescription>
            <BonusOfferNumber>1326</BonusOfferNumber>
        </Bonus>
        <AccountOption>
            <AccountOptionNumber>1</AccountOptionNumber>
            <Supplier>
                <SupplierName>HSBC</SupplierName>
                <SupplierDetails>UK</SupplierDetails>
            </Supplier>
            <Supplier>
                <SupplierName>BARCLAYS</SupplierName>
                <SupplierDetails>US</SupplierDetails>
            </Supplier>
        </AccountOption>
    </Account>    
    <Account>
        <AccountNumber>AC7658</AccountNumber>       
        <Code>
            <CodeType>HGV</CodeType>
            <CodeValue>6780</CodeValue>
        </Code>
        <Code>
            <CodeType>MNR</CodeType>
            <CodeValue>67</CodeValue>
        </Code>
        <Bonus>
            <BonusDescription>BNP</BonusDescription>
            <BonusOfferNumber>5678</BonusOfferNumber>
        </Bonus>
        <Bonus>
            <BonusDescription>INCR</BonusDescription>
            <BonusOfferNumber>7804</BonusOfferNumber>
        </Bonus>
        <AccountOption>
            <AccountOptionNumber>9</AccountOptionNumber>
            <Supplier>
                <SupplierName>NAT</SupplierName>
                <SupplierDetails>US</SupplierDetails>
            </Supplier>
            <Supplier>
                <SupplierName>LKM</SupplierName>
                <SupplierDetails>GB</SupplierDetails>
            </Supplier>
        </AccountOption>
    </Account>    
</Service>

输出 XML:

<?xml version="1.0" encoding="UTF-8"?>
<Service>
    <Account>
        <AccountNumber>AB1234</AccountNumber>       
        <Code>
            <CodeType>ZCR</CodeType>
            <CodeValue>1234</CodeValue>
        </Code>
        <Code>
            <CodeType>ABC</CodeType>
            <CodeValue>3456</CodeValue>
        </Code>
        <Bonus>
            <BonusDescription>INCR</BonusDescription>
            <BonusOfferNumber>1004</BonusOfferNumber>
        </Bonus>
        <Bonus>
            <BonusDescription>BNP</BonusDescription>
            <BonusOfferNumber>1326</BonusOfferNumber>
        </Bonus>
        <AccountOption>
            <AccountOptionNumber>1</AccountOptionNumber>
            <Supplier>
                <SupplierName>HSBC</SupplierName>
                <SupplierDetails>UK</SupplierDetails>
            </Supplier>
            <Supplier>
                <SupplierName>BARCLAYS</SupplierName>
                <SupplierDetails>US</SupplierDetails>
            </Supplier>
        </AccountOption>
    </Account>    
    <Account>
        <AccountNumber>AC7658</AccountNumber>       
        <Code>
            <CodeType>MNR</CodeType>
            <CodeValue>67</CodeValue>
        </Code>
        <Code>
            <CodeType>HGV</CodeType>
            <CodeValue>6780</CodeValue>
        </Code>
        <Bonus>
            <BonusDescription>BNP</BonusDescription>
            <BonusOfferNumber>5678</BonusOfferNumber>
        </Bonus>
        <Bonus>
            <BonusDescription>INCR</BonusDescription>
            <BonusOfferNumber>7804</BonusOfferNumber>
        </Bonus>
        <AccountOption>
            <AccountOptionNumber>9</AccountOptionNumber>
            <Supplier>
                <SupplierName>NAT</SupplierName>
                <SupplierDetails>US</SupplierDetails>
            </Supplier>
            <Supplier>
                <SupplierName>LKM</SupplierName>
                <SupplierDetails>GB</SupplierDetails>
            </Supplier>
        </AccountOption>
    </Account>    
</Service>

Answer 1

我可以描述<xsl:sort>详细，但是 w3schools 可以比我做得更好:

http://www.w3schools.com/xsl/el_sort.asp

您可以定义一个模板来按节点的值对任何节点进行排序，只需对身份模板稍作修改即可:

<xsl:template match="@* | node()">
    <xsl:copy>
        <xsl:apply-templates select="@* | node()">
          <xsl:sort />
        </xsl:apply-templates>
    </xsl:copy>
</xsl:template>

根据您的评论，我相信您需要这样的东西:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:param name="sort" />

  <xsl:template match="@* | node()">
    <xsl:copy>
      <xsl:choose>
        <xsl:when test="name() = $sort">
          <xsl:apply-templates select="@* | node()">
            <xsl:sort />
          </xsl:apply-templates>
        </xsl:when>
        <xsl:otherwise>
          <xsl:apply-templates select="@* | node()" />
        </xsl:otherwise>
      </xsl:choose>
    </xsl:copy>
  </xsl:template>
</xsl:stylesheet>