<?xml version="1.0" encoding="utf-8"?> 
<Accounts> 
   <Account type="type1"> 
         <code>100001</code> 
         <pass>123</pass> 
         <name>张三</name> 
         <money>1000000.00</money> 
   </Account> 
   <Account type="type2"> 
       <code>100002</code> 
       <pass>123</pass> 
       <name>李四</name> 
       <money>1000.00</money> 
    </Account> 
</Accounts>

package dom; 
 
import java.io.*; 
import javax.xml.parsers.DocumentBuilder; 
import javax.xml.parsers.DocumentBuilderFactory; 
import org.w3c.dom.Document; 
import org.w3c.dom.Element; 
import org.w3c.dom.Node; 
import org.w3c.dom.NodeList; 
 
 
public class Dom { 
 
    public static void main(String arge[]) { 
 
        Element element = null; 
        // 可以使用绝对路劲 
        File f = new File("dom/book.xml"); 
 
        // documentBuilder为抽象不能直接实例化(将XML文件转换为DOM文件) 
        DocumentBuilder db = null; 
        DocumentBuilderFactory dbf = null; 
        try { 
            // 返回documentBuilderFactory返回工厂对象 
            dbf = DocumentBuilderFactory.newInstance(); 
            // 返回db对象用documentBuilderFatory对象获得返回documentBuildr对象 
            db = dbf.newDocumentBuilder(); 
 
            // 得到一个DOM并返回给document对象 
            Document dt = db.parse(f); 
            // 得到一个elment根元素 
            element = dt.getDocumentElement(); 
            // 输出根元素的name 
            System.out.println("根元素：" + element.getNodeName());//Accounts 
 
            // 获得根元素下的子节点 
            NodeList childNodes = element.getChildNodes(); 
 
            // 遍历根节点下的所有子节点 
            for (int i = 0; i < childNodes.getLength(); i++) {//5 #text Account #text Account #text  会把回车算成子节点，实际只有两个子节点 
                // 获得每个对应位置i的结点 
                Node node1 = childNodes.item(i); 
                System.out.println("分别是="+node1.getNodeName()); 
                if ("Account".equals(node1.getNodeName())) { 
                    // 如果节点的名称为"Account"，则输出Account元素属性type 
                    //NamedNodeMap   nnm = node1.getAttributes()的返回值是NamedNodeMap对象  
                    //通过节点名称返回结点对象Node node = getNamedItem("type") 
                    //getNodeValue()返回的是xml节点的值 
                    System.out.println("/r/n找到一篇账号. 所属区域: " 
                            + node1.getAttributes().getNamedItem("type") 
                                    .getNodeValue() + ". "); 
                    // 获得<Accounts>下的节点 
                    NodeList nodeDetail = node1.getChildNodes(); 
                    // 遍历<Accounts>下的节点 
                    for (int j = 0; j < nodeDetail.getLength(); j++) {//9 #text  code  #text  pass #text  name  #text  money #text  
                        // 获得<Accounts>元素每一个节点 
                        Node detail = nodeDetail.item(j); 
                        if ("code".equals(detail.getNodeName())) // 输出code 
                            System.out 
                                    .println("卡号: " + detail.getTextContent()); 
                        else if ("pass".equals(detail.getNodeName())) // 输出pass 
                            System.out 
                                    .println("密码: " + detail.getTextContent()); 
                        else if ("name".equals(detail.getNodeName())) // 输出name 
                            System.out 
                                    .println("姓名: " + detail.getTextContent()); 
                        else if ("money".equals(detail.getNodeName())) // 输出money 
                            System.out 
                                    .println("余额: " + detail.getTextContent()); 
                    } 
                } 
 
            } 
        } 
 
        catch (Exception e) { 
            e.printStackTrace(); 
        } 
    } 
 
}

<?xml version="1.0" encoding="UTF-8"?> 
  <RESULT>  
    <VALUE >  
      <NO>A1234</NO>  
      <ADDR>河南省郑州市</ADDR>  
    </VALUE>  
    <VALUE>  
      <NO>B1234</NO>  
      <ADDR>河南省郑州市二七区</ADDR>  
    </VALUE>  
</RESULT>

package dom4J; 
 
import java.io.*;    
import java.util.*;    
import org.dom4j.*;    
import org.dom4j.io.*;  
 
public class Test { 
 
    public static void main(String arge[]) { 
         
        try { 
            File f = new File("dom4J/a.xml"); 
            SAXReader reader = new SAXReader(); 
            //得到Document对象 
            Document doc = reader.read(f); 
            //获得根节点 
            Element root = doc.getRootElement(); 
            Element foo; 
            //elementIterator从根节点遍历子节点 
            Iterator i = root.elementIterator("VALUE"); 
            while(i.hasNext()){ 
            //for (Iterator i = root.elementIterator("VALUE"); i.hasNext();) { 
                foo = (Element) i.next(); 
                //得到节点的内容 
                System.out.print("车牌号码:" + foo.elementText("NO")); 
                System.out.println("车主地址:" + foo.elementText("ADDR")); 
            } 
        } catch (Exception e) { 
            e.printStackTrace(); 
        } 
    } 
}

package jdom; 
 
import java.io.File; 
import java.util.List; 
 
import org.jdom.Document; 
import org.jdom.Element; 
import org.jdom.input.SAXBuilder; 
 
public class Test { 
    public static void main(String arge[]) { 
     
        try { 
            SAXBuilder builder = new SAXBuilder(); 
            Document doc = builder.build(new File("jdom/a.xml")); 
            Element foo = doc.getRootElement(); 
            List allChildren = foo.getChildren(); 
            for (int i = 0; i < allChildren.size(); i++) { 
                System.out.print("车牌号码:" 
                        + ((Element) allChildren.get(i)).getChild("NO") 
                                .getText()); 
                System.out.println("车主地址:" 
                        + ((Element) allChildren.get(i)).getChild("ADDR") 
                                .getText()); 
            } 
        } catch (Exception e) { 
            e.printStackTrace(); 
        } 
    } 
}