DOM

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="[email protected]">
<name>name_name</name>
<price>price_price</price>
</book>
</books>