How to strip whitespace-only text nodes from a DOM before serialization?

by

You can find empty text nodes using XPath, then remove them programmatically like so:

XPathFactory xpathFactory = XPathFactory.newInstance();
// XPath to find empty text nodes.
XPathExpression xpathExp = xpathFactory.newXPath().compile(
        "//text()[normalize-space(.) = '']");  
NodeList emptyTextNodes = (NodeList) 
        xpathExp.evaluate(doc, XPathConstants.NODESET);

// Remove each empty text node from document.
for (int i = 0; i < emptyTextNodes.getLength(); i++) {
    Node emptyTextNode = emptyTextNodes.item(i);
    emptyTextNode.getParentNode().removeChild(emptyTextNode);
}

This approach might be useful if you want more control over node removal than is easily achieved with an XSL template.

More Related Contents:

  1. Normalization in DOM parsing with java – how does it work?
  2. Order of XML attributes after DOM processing
  3. Get a node’s inner XML as String in Java DOM
  4. How to save parsed and changed DOM document in xml file?
  5. XML Document to String
  6. What is the shortest way to pretty print a org.w3c.dom.Document to stdout?
  7. HTML/XML Parser for Java [closed]
  8. How to I output org.w3c.dom.Element to string format in java?
  9. Java: Most efficient method to iterate over all elements in a org.w3c.dom.Document?
  10. Getting XML Node text value with Java DOM
  11. Pretty print XML in java 8
  12. why is sax parsing faster than dom parsing ? and how does stax work?
  13. Unable to read xml with namespace prefix using DOM parser
  14. Create XML document using nodeList
  15. Been staring at my code for an hour and still can't see the issue. Android – Java development [closed]
  16. Xml configuration versus Annotation based configuration [closed]
  17. How to add a TextView to LinearLayout in Android
  18. Converting JSON to XML in Java
  19. Best way to encode text data for XML in Java?
  20. How do I load an org.w3c.dom.Document from XML in a string?
  21. Android change Material elevation shadow color
  22. Using custom font in android TextView using xml
  23. How to set menu to Toolbar in Android
  24. How do you customize how JAXB generates plural method names?
  25. No resource identifier found for attribute ‘layout_behavior’ in package
  26. JAXB inheritance, unmarshal to subclass of marshaled class
  27. Groovy: Create a Map with JAX-B Object’s specific attributes
  28. Jaxb: how to unmarshall xs:any XML-string part?
  29. Producing valid XML with Java and UTF-8 encoding
  30. Externalize query in spring boot application

Leave a Comment