Question

I have a properties file with data to connect with database. Also, I have a hibernate config file. I would like to config the hibernate file with properties from properties file. How could I read the properties and insert them into XML file? I can read the properties via System.getProperty(name).

Thanks!

Answer 1

May this should be a good start:

File xmlfile = null;
File propertiesfile = null;
Properties p = new Properties();
p.load(new FileReader(propertiesfile));

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document parse = db.parse(xmlfile);
DOMSource domSource = new DOMSource(parse);
Node root = domSource.getNode();
for (Object key : p.keySet()) {
    String sKey = "" + key;
    root.setTextContent(root.getTextContent()+sKey + "=" + p.getProperty(sKey));
}
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
transformer.transform(domSource, new StreamResult(xmlfile));