<?xml version=”1.0″ encoding=”UTF-8″?>

<aaaa>

<bbbb>

<cccc>

<dddd>

<username>aaa</username>

</dddd>

<dddd>

<username>bbb</username>

</dddd>

</cccc>

</bbbb>

</aaaa>

package wzq.j2se.xml;

import java.util.Iterator;

import org.dom4j.Document;

import org.dom4j.Element;

import org.dom4j.io.SAXReader;

import org.xml.sax.InputSource;

public class Dom4j4 {

public static void main(String[] args) {

try{

InputSource is = new InputSource(“http://localhost/data4.xml”);

SAXReader reader = new SAXReader();

reader.setEncoding(“utf-8″);

/*File f = new File(“D:\\androidspace\\javanote\\src\\wzq\\j2se\\xml\\data4.xml”);

Document doc = reader.read(f); */

Document doc = reader.read(is);

Dom4j4 j1 = new Dom4j4();

Element rootElt = doc.getRootElement(); // 获取根节点

        System.out.println(“根节点：” + rootElt.getName()); // 拿到根节点的名称

        Iterator bbbb = rootElt.elementIterator(“bbbb”); ///获取根节点下的子节点bbbb

           // 遍历bbbb节点

           while (bbbb.hasNext()) {

               Element recordEless = (Element) bbbb.next();

               Iterator cccc = recordEless.elementIterator(“cccc”); // 获取子节点bbbb下的子节点cccc

               while (cccc.hasNext()) {

                   Element itemEle = (Element) cccc.next();

                   Iterator dddd = itemEle.elementIterator(“dddd”);

                   while(dddd.hasNext()){

                    Element tableItem = (Element) dddd.next();

                    String username = tableItem.elementTextTrim(“username”); // 拿到dddd下的字节点username的值

                   System.out.println(“username:” + username);

                   }

               }

           }

}catch(Exception e){

e.printStackTrace();

}

}

}