如何使用XSL将首个termVehicleHistory的coverageData复制到其他节点？

核心思路是利用XSLT的身份转换模板复制XML的大部分结构，仅对termVehicleHistory节点做特殊处理：

• 保留第一个termVehicleHistory的所有内容（包括自带的coverageData）
• 对后续的termVehicleHistory，先复制原节点内的所有子节点，再将第一个termVehicleHistory下的所有coverageData节点追加进去

完整XSLT代码 #

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <!-- 身份转换模板：默认复制所有节点和属性 -->
    <xsl:template match="@*|node()">
        <xsl:copy>
            <xsl:apply-templates select="@*|node()"/>
        </xsl:copy>
    </xsl:template>

    <!-- 匹配第一个termVehicleHistory节点，直接保留原内容 -->
    <xsl:template match="termVehicleHistory[1]">
        <xsl:copy>
            <xsl:apply-templates select="@*|node()"/>
        </xsl:copy>
    </xsl:template>

    <!-- 匹配后续的termVehicleHistory节点，追加第一个节点的coverageData -->
    <xsl:template match="termVehicleHistory[position() > 1]">
        <xsl:copy>
            <!-- 复制当前节点的原有子节点 -->
            <xsl:apply-templates select="@*|node()"/>
            <!-- 插入第一个termVehicleHistory下的所有coverageData -->
            <xsl:copy-of select="/root//termVehicleHistory[1]/coverageData"/>
        </xsl:copy>
    </xsl:template>
</xsl:stylesheet>

示例输入XML #

<root>
    <termVehicleHistory>
        <vehicleInfo>Car 1</vehicleInfo>
        <coverageData>
            <coverageType>Collision</coverageType>
            <limit>100000</limit>
        </coverageData>
        <coverageData>
            <coverageType>Comprehensive</coverageType>
            <limit>50000</limit>
        </coverageData>
    </termVehicleHistory>
    <termVehicleHistory>
        <vehicleInfo>Car 2</vehicleInfo>
    </termVehicleHistory>
    <termVehicleHistory>
        <vehicleInfo>Car 3</vehicleInfo>
    </termVehicleHistory>
</root>

预期输出XML #

<root>
    <termVehicleHistory>
        <vehicleInfo>Car 1</vehicleInfo>
        <coverageData>
            <coverageType>Collision</coverageType>
            <limit>100000</limit>
        </coverageData>
        <coverageData>
            <coverageType>Comprehensive</coverageType>
            <limit>50000</limit>
        </coverageData>
    </termVehicleHistory>
    <termVehicleHistory>
        <vehicleInfo>Car 2</vehicleInfo>
        <coverageData>
            <coverageType>Collision</coverageType>
            <limit>100000</limit>
        </coverageData>
        <coverageData>
            <coverageType>Comprehensive</coverageType>
            <limit>50000</limit>
        </coverageData>
    </termVehicleHistory>
    <termVehicleHistory>
        <vehicleInfo>Car 3</vehicleInfo>
        <coverageData>
            <coverageType>Collision</coverageType>
            <limit>100000</limit>
        </coverageData>
        <coverageData>
            <coverageType>Comprehensive</coverageType>
            <limit>50000</limit>
        </coverageData>
    </termVehicleHistory>
</root>

内容的提问来源于stack exchange，提问作者user6186585