import java.io.FileInputStream; 
import java.io.FileNotFoundException; 
import java.io.IOException; 
import java.io.InputStream; 

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.Node; 
import org.w3c.dom.NodeList; 
import org.xml.sax.SAXException; 

public class DomParse { 

public DomParse() { 

DocumentBuilderFactory domfac = DocumentBuilderFactory.newInstance(); 
try { 
DocumentBuilder dombuilder = domfac.newDocumentBuilder(); 
InputStream is = new FileInputStream("bin/library.xml"); 

Document doc = dombuilder.parse(is); 
Element rootElement = doc.getDocumentElement(); 

System.out.println(rootElement); 

NodeList childNodes = rootElement.getChildNodes(); 
System.out.println("子节点"+childNodes); 

if (childNodes != null) { 
for (int i = 0; i < childNodes.getLength(); i++) { 

Node node_index = childNodes.item(i); 
System.out.println("节点名称"+node_index.getNodeName()); 

if (node_index.getNodeType() == Node.ELEMENT_NODE) { 
String email = node_index.getAttributes() 
.getNamedItem("email").getNodeValue(); 

System.out.println("email="+email); 


for (Node node = node_index.getFirstChild(); node != null; node = node 
.getNextSibling()) 
{ 
if (node.getNodeType() == Node.ELEMENT_NODE) 
{ 

if (node.getNodeName().equals("name")) 

{ 
String name = node.getNodeValue(); 
String name1 = node.getFirstChild() 
.getNodeValue(); 
System.out.println("name="+name); 
System.out.println("name child="+name1); 
} 

if (node.getNodeName().equals("price")) 
{ 
String price = node.getFirstChild() 
.getNodeValue(); 
System.out.println("price="+price); 
} 

} 
} 
} 
} 
} 
} catch (ParserConfigurationException e) { 
e.printStackTrace(); 
} catch (FileNotFoundException e) { 
e.printStackTrace(); 
} catch (SAXException e) { 
e.printStackTrace(); 
} catch (IOException e) { 
e.printStackTrace(); 
} 
} 

public static void main(String[] args) { 
new DomParse(); 
} 
} 


<?xml version="1.0" encoding="gb2312"?> 
<books name="hello"> 
<book email="jadeluo@163.com"> 
<name>name_name</name> 
<price>price_price</price> 
</book> 
</books>