java dom

	 

	First, Build a DocumentBuilderFactory, since is protected ,we have to apply newInstence()

	Second, Give the factory an order, the order is DocumentBuilder

	Third, find the root node (document)

	package DomTest;

	 

	import java.io.File;

	import java.io.IOException;

	 

	import javax.xml.parsers.DocumentBuilder;

	import javax.xml.parsers.DocumentBuilderFactory;

	import javax.xml.parsers.ParserConfigurationException;

	 

	import org.w3c.dom.Document;

	import org.w3c.dom.Element;

	import org.w3c.dom.NodeList;

	import org.xml.sax.SAXException;

	 

	public class DOMTest1

	{

	    public static void main(String[] args) throws SAXException, IOException

	    {

	        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

	        

	        try

	        {

	            DocumentBuilder db = dbf.newDocumentBuilder();

	            Document document = db.parse(new File("student.xml"));

	            NodeList list = document.getElementsByTagName("student");

	            System.out.println(list.getLength());

	            for (int i = 0; i<list.getLength(); i++)

	            {

	                Element element = (Element)list.item(i);

	                String str  = element.getElementsByTagName("name").item(0).getFirstChild().getNodeValue();

	                System.out.println(str);

	            }

	            

	        }

	        catch (ParserConfigurationException e)

	        {

	            // TODO Auto-generated catch block

	            e.printStackTrace();

	        }

	        

	    }

	}

	XML：

	 

	<?xml version="1.0" encoding="UTF-8"?>

	 

	<studentsList xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

	    xsi:noNamespaceSchemaLocation="student.xsd">

	 

	    <student>

	        <stuId>265153</stuId>

	        <name>Lily</name>

	        <age>28</age>

	    </student>

	 

	    <student>

	        <stuId>265953</stuId>

	        <name>Tom</name>

	        <age>28</age>

	    </student>

	 

	</studentsList>

	 

	本文出自 “笨鸟先飞” 博客

补充：软件开发 , Java ,

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