XML解析入门之JDOM（一）

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package com.liuc.test;import java.io.File;import java.io.IOException;import java.util.Iterator;import java.util.List;import org.jdom2.Attribute;import org.jdom2.Document;import org.jdom2.Element;import org.jdom2.JDOMException;import org.jdom2.input.SAXBuilder;public class JdomTest {/** * @param args */public static void main(String[] args) {praseXML(new File("person.xml"));}/** * 解析XML方法 */public static void praseXML(File xmlFile){SAXBuilder sax=new SAXBuilder(); //在内存中建立一个SAX文档模型try {//创建文档Document xmlDom=sax.build(xmlFile);//获得文档的根元素Element root=xmlDom.getRootElement();System.out.println("根元素是"+root);//获得根元素的子节点List childList=root.getChildren();Iterator it=childList.iterator();while(it.hasNext()){Element element=(Element) it.next();System.out.println("孩子节点是"+element.getName());}//获得第一个孩子节点Element firstChild=(Element) childList.get(0);//获取孩子节点的属性List attriList=firstChild.getAttributes();Iterator attrIt=attriList.iterator();while(attrIt.hasNext()){Attribute  attr = (Attribute )attrIt.next();System.out.println("第一个元素属性是"+attr.getName());System.out.println("属性的值是"+attr.getValue());System.out.println("属性的类型是"+attr.getAttributeType());}} catch (JDOMException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}//创建文档}}

XML文件

<?xml version="1.0" encoding="UTF-8"?><persons>  <person perid="1001">    <name>zhangsan</name>    <age>89</age>    <address>安徽淮北</address>    <sex>男</sex>  </person>  <person perid="1002">    <name>lisi</name>    <age>56</age>    <address>北京海淀</address>    <sex>女</sex>  </person></persons>