What is the best way for this situation?

Question

Hi I have an xml file in my application. over a period of time i have to add few nodes to the existing xml file.
In my business logic when a specific requirement is met i have to add one child node to the existing parent node for an existing xml file.
what is the best way to do this? which api is the best for this?

Answer 1

DrClap wrote:
Muralidhar wrote:
using DOM parser we can parse the xml file but can we write to XML file?Sure. That's the inverse operation of parsing, and it's called "serializing".
The usual way to serialize a DOM to a file is to create a Transformer and apply the identity transformation to the DOM. However there are also third-party XML serializers that don't take that approach.I have not understood what the identity transformation mean. but i have searched for an example and found the following way to do it using Transformer. I hope what i find is right.
Transformer tFormer = TransformerFactory.newInstance().newTransformer();
          tFormer.setOutputProperty(OutputKeys.METHOD, "xml");
          Source source = new DOMSource(doc);
          Result result = new StreamResult(new File(url.toURI()));
          tFormer.transform(source, result);