Read And Edit Xml File

public class ReadAndEditXmlFile {
	public static String queryXmlElementValue(String path, String name){
		String res = "";
		try {
			String filepath = path;
			File f = new File(filepath);
			SAXReader saxReader = new SAXReader(); 
			Document document = saxReader.read(f);
			Element root = document.getRootElement();
			Iterator itElem = root.elementIterator();
			while(itElem.hasNext()){
				Element sonElem = (Element) itElem.next();
				if (sonElem.getName().equals(name)) {
					res = sonElem.getText();
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		} 
		return res;
	}
	public static boolean editXmlElementValue(String path, String name, String value){
		boolean b = false;
		try {
			String filepath = path;
			File f = new File(filepath); 
			SAXReader saxReader = new SAXReader();
			Document document = saxReader.read(f);
			Writer w = new FileWriter(f);
			OutputFormat opf = OutputFormat.createPrettyPrint();
			opf.setEncoding("UTF-8");
	        XMLWriter xw = new XMLWriter(w, opf);
			Element root = document.getRootElement();
			Iterator itElem = root.elementIterator();
			while(itElem.hasNext()){
				Element sonElem = (Element) itElem.next();
				if (sonElem.getName().equals(name)) {
					sonElem.setText(value);
				}
			}
			xw.write(document);   
	        xw.close();
	        return true;
		} catch (Exception e) {
			e.printStackTrace();
		}
		return b;
	}
}