如何从子节点使用xslt从xml获取以下同级

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:template match="/">
    <xsl:apply-templates select="parentNode/childNode"/>
  </xsl:template>
  
  <xsl:template match="childNode">
    <xsl:value-of select="."/>
  </xsl:template>
</xsl:stylesheet>

import javax.xml.transform.*;
import javax.xml.transform.stream.*;

public class XSLTExample {
  public static void main(String[] args) throws Exception {
    // 加载XSLT样式表
    Source xslt = new StreamSource(new FileInputStream("path/to/stylesheet.xslt"));
    
    // 创建转换器
    TransformerFactory factory = TransformerFactory.newInstance();
    Transformer transformer = factory.newTransformer(xslt);
    
    // 加载XML文档
    Source xml = new StreamSource(new FileInputStream("path/to/input.xml"));
    
    // 执行转换
    transformer.transform(xml, new StreamResult(System.out));
  }
}