👀 Views: 20 💬 Answers: 1 📅 Created: 2025-06-26

xml parsing java xpath

I'm relatively new to this, so bear with me. I've been struggling with this for a few days now and could really use some help... I'm stuck trying to I'm currently working on a Java application that needs to parse an XML file containing mixed case tags. The XML structure looks something like this: ```xml <Data> <Item> <name>Item1</name> <value>10</value> </Item> <item> <Name>Item2</Name> <Value>20</Value> </item> </Data> ``` I am using the `javax.xml.parsers` library to parse this XML, but I am working with issues due to the case sensitivity of the tags. My current parsing code is as follows: ```java import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import org.w3c.dom.Document; import org.w3c.dom.NodeList; import org.w3c.dom.Element; public class XMLParser { public static void main(String[] args) { try { DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); DocumentBuilder builder = factory.newDocumentBuilder(); Document doc = builder.parse("data.xml"); doc.getDocumentElement().normalize(); NodeList itemList = doc.getElementsByTagName("Item"); for (int i = 0; i < itemList.getLength(); i++) { Element item = (Element) itemList.item(i); String name = item.getElementsByTagName("name").item(0).getTextContent(); String value = item.getElementsByTagName("value").item(0).getTextContent(); System.out.println("Name: " + name + ", Value: " + value); } } catch (Exception e) { e.printStackTrace(); } } } ``` The scenario arises when trying to access the `<item>` and `<Name>` tags, as they are not captured by `getElementsByTagName("Item")`. I thought about using a case-insensitive approach, but it seems that `getElementsByTagName` does not support this. The output is empty for these tags, and I receive no errors, just silent failures. I've tried using XPath for a more flexible querying approach, like so: ```java import javax.xml.xpath.XPath; import javax.xml.xpath.XPathConstants; import javax.xml.xpath.XPathFactory; XPath xpath = XPathFactory.newInstance().newXPath(); NodeList nodes = (NodeList) xpath.evaluate("//item | //Item", doc, XPathConstants.NODESET); ``` However, the XPath expression still seems to be case-sensitive when it comes to matching tags. Is there an efficient way to parse XML with mixed case tags in Java? Any suggestions on best practices or libraries that might handle this better would be greatly appreciated! Any ideas what could be causing this? I'm working with Java in a Docker container on Ubuntu 20.04. The stack includes Java and several other technologies. I'm working with Java in a Docker container on Debian.