dom生成和解析xml文件，dom解析xml,我特别不喜欢这种方式，最

dom生成和解析xml文件，dom解析xml,我特别不喜欢这种方式，最

我特别不喜欢这种方式，最不方便，所以解析上就做的不好，不想再继续做了，烦劳诸位给个好的方式用dom的，直接回复代码。

private static Document doc= null;    private static Person[] persons= null;    private static File file= new File("dom.xml");    public static void main(String[] A) {//      init();//      setBeanValue();        parseInit();    }    public static void init() {//Document        DocumentBuilderFactory factory= DocumentBuilderFactory.newInstance();        try {            DocumentBuilder builder= factory.newDocumentBuilder();            doc= builder.newDocument();        } catch (ParserConfigurationException e) {            System.out.println("DocumentBuilder.");            e.printStackTrace();        }    }    public static void setBeanValue() {        Element root= doc.createElement("root");        doc.appendChild(root);        Element personsxml= doc.createElement("persons");        root.appendChild(personsxml);        persons= new Person[3];        for(int i= 0; i< 3; i++) {            persons[i]= new Person();            persons[i].setAge(i+ "");            persons[i].setSex("");            Element person= doc.createElement("person");            personsxml.appendChild(person);            createXML(person, persons[i]);        }        try {            DOMSource source= new DOMSource(doc);            if(!file.exists()) {                file.createNewFile();            }            FileOutputStream output= new FileOutputStream(file);            TransformerFactory factory= TransformerFactory.newInstance();            Transformer transform= factory.newTransformer();            StreamResult result= new StreamResult(output);            transform.setOutputProperty(OutputKeys.ENCODING, "gb2312");            transform.setOutputProperty(OutputKeys.INDENT, "yes");            transform.transform(source, result);        } catch (FileNotFoundException e) {            e.printStackTrace();        } catch (TransformerConfigurationException e) {            e.printStackTrace();        } catch (TransformerException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }    }    public static void createXML(Node node, Object obj) {//xml        Class className= obj.getClass();        Field[] fields= className.getDeclaredFields();        for(Field field: fields) {            field.setAccessible(true);            String name= field.getName();            Element elementName= doc.createElement(name);            try {                elementName.setTextContent((String)field.get(obj));            } catch (DOMException e) {                e.printStackTrace();            } catch (IllegalArgumentException e) {                e.printStackTrace();            } catch (IllegalAccessException e) {                e.printStackTrace();            }            node.appendChild(elementName);        }    }    public static void parseInit() {        DocumentBuilderFactory factory= DocumentBuilderFactory.newInstance();        try {            DocumentBuilder builder= factory.newDocumentBuilder();            Document doc= builder.parse(file);            NodeList nodeList= doc.getChildNodes();            for(int i= 0; i< nodeList.getLength(); i++) {                Node node= nodeList.item(i);//root                parseXML(node);            }        } catch (ParserConfigurationException e) {            e.printStackTrace();        } catch (SAXException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }    }    public static void parseXML(Node node) {        NodeList list= node.getChildNodes();//persons        if(list!= null) {            for(int i= 0; i< list.getLength(); i++) {                Node childNode= list.item(i);//person                NodeList childList= childNode.getChildNodes();                if(childList!= null&& childNode.getNodeType()!= 3) {                    System.out.println("childList!= null :  "+childNode.getNodeName());                    parseXML(childNode);                }                if(childNode.getTextContent().trim()!= null|| !(childNode.getTextContent().trim().equals(""))) {                    System.out.println(childNode.getNodeName()+"--->"+childNode.getTextContent().trim());                }            }        }    }}//该片段来自于http://byrx.net