Dom4j is a Java xml api, similar to JDOM, used to read and write XML files. It features excellent performance, powerful functionality, and ease of use.
Jar packages used: dom4j-1.6.1.jar, jaxen-1.1-beta-6.jar
XML file to be parsed: people. xml
<people city="shenzhen"> <student name="milton" age="22"></student> <student name="lego" age="23"></student> <teacher name="bruce" age="27"></teacher> <teacher name="ziven" age="28"></teacher> </people>
The Java code is as follows:
package demo5;import java.io.File;import java.util.Iterator;import java.util.List;import org.dom4j.Document;import org.dom4j.DocumentException;import org.dom4j.Element;import org.dom4j.io.SAXReader; public class Test01 { public static void main(String args[]) throws DocumentException { SAXReader reader = new SAXReader(); Document document = reader.read(new File("D:/people.xml")); Element rootElm = document.getRootElement(); //Element root1Elm = rootElm.element("city"); @SuppressWarnings("rawtypes") List nodes = rootElm.elements("student"); @SuppressWarnings("rawtypes")List nodess = rootElm.elements("teacher"); for (@SuppressWarnings("rawtypes") Iterator it = nodes.iterator(); it.hasNext();) { Element elm = (Element) it.next(); System.out.println("name:" + elm.attributeValue("name") + " age:" + elm.attributeValue("age")); } for (@SuppressWarnings("rawtypes") Iterator it = nodess.iterator(); it.hasNext();) { Element elm = (Element) it.next(); System.out.println("name:" + elm.attributeValue("name") + " age:" + elm.attributeValue("age")); } System.out.println(); try { Document doc = reader.read(new File("D:/people.xml")); @SuppressWarnings("rawtypes") List projects = doc.selectNodes("people/student"); @SuppressWarnings("rawtypes")List projectss = doc.selectNodes("people/teacher"); @SuppressWarnings("rawtypes") Iterator it = projects.iterator(); while (it.hasNext()) { Element elm = (Element) it.next(); System.out.println("name:" + elm.attributeValue("name") + " age:" + elm.attributeValue("age")); } @SuppressWarnings("rawtypes") Iterator its = projectss.iterator(); while (its.hasNext()) { Element elm = (Element) its.next(); System.out.println("name:" + elm.attributeValue("name") + " age:" + elm.attributeValue("age")); } } catch (Exception ex) { ex.printStackTrace(); } } }
The result after the code is run is as follows: