I am editing an XML file in Java with a Transformer by adding more nodes. The old XML code is unchanged but the new XML nodes have <
and >
instead of <> and are on the same line. How do I get <> instead of <
and >
and how do I get line breaks after the new nodes. I already read several similar threads but wasn't able to get the right formatting. Here is the relevant portion of the code:
// Read the XML file
DocumentBuilderFactory dbf= DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc=db.parse(xmlFile.getAbsoluteFile());
Element root = doc.getDocumentElement();
// create a new node
Element newNode = doc.createElement("Item");
// add it to the root node
root.appendChild(newNode);
// create a new attribute
Attr attribute = doc.createAttribute("Name");
// assign the attribute a value
attribute.setValue("Test...");
// add the attribute to the new node
newNode.setAttributeNode(attribute);
// transform the XML
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty(OutputKeys.METHOD, "xml");
StreamResult result = new StreamResult(new FileWriter(xmlFile.getAbsoluteFile()));
DOMSource source = new DOMSource(doc);
transformer.transform(source, result);
Thanks
To replace the > and other tags you can use org.apache.commons.lang3:
StringEscapeUtils.unescapeXml(resp.toString());
After that you can use the following property of transformer for having line breaks in your xml:
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
based on a question posted here:
public void writeToOutputStream(Document fDoc, OutputStream out) throws Exception {
fDoc.setXmlStandalone(true);
DOMSource docSource = new DOMSource(fDoc);
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.METHOD, "xml");
transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
transformer.setOutputProperty(OutputKeys.INDENT, "no");
transformer.transform(docSource, new StreamResult(out));
}
produces:
<?xml version="1.0" encoding="UTF-8"?>
The differences I see:
fDoc.setXmlStandalone(true);
transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
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