Java tutorial
//package com.java2s; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.xml.sax.SAXException; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerException; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import java.io.File; import java.io.IOException; import java.lang.reflect.Field; public class Main { public static boolean creteEntity(Object entity, String fileName) { boolean flag = false; try { DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance(); DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder(); Document document = documentBuilder.parse(fileName); Class clazz = entity.getClass(); Field[] fields = clazz.getDeclaredFields(); Node EntityElement = document.getElementsByTagName(clazz.getSimpleName() + "s").item(0); Element newEntity = document.createElement(clazz.getSimpleName()); EntityElement.appendChild(newEntity); for (Field field : fields) { field.setAccessible(true); Element element = document.createElement(field.getName()); element.appendChild(document.createTextNode(field.get(entity).toString())); newEntity.appendChild(element); } TransformerFactory transformerFactory = TransformerFactory.newInstance(); Transformer transformer = transformerFactory.newTransformer(); DOMSource domSource = new DOMSource(document); StreamResult streamResult = new StreamResult(new File(fileName)); transformer.transform(domSource, streamResult); flag = true; } catch (ParserConfigurationException pce) { System.out.println(pce.getLocalizedMessage()); pce.printStackTrace(); } catch (TransformerException te) { System.out.println(te.getLocalizedMessage()); te.printStackTrace(); } catch (IOException ioe) { System.out.println(ioe.getLocalizedMessage()); ioe.printStackTrace(); } catch (SAXException sae) { System.out.println(sae.getLocalizedMessage()); sae.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } return flag; } }