使用Document Object Model, DOM解析XML文档

也可参考我的新浪博客：http://blog.sina.com.cn/s/blog_43ac5543010190w3.html

测试代码如下

package main;

import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;

import org.w3c.dom.Element;

import org.w3c.dom.NamedNodeMap;

import org.w3c.dom.Node;

import org.w3c.dom.NodeList;

import org.w3c.dom.Text;

public class Test {

	public static void main(String[] args) throws Exception {

		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

		DocumentBuilder builder = factory.newDocumentBuilder();

		factory.setIgnoringElementContentWhitespace(true);

		factory.setIgnoringComments(true);

		factory.setValidating(true);

		Document xmlDoc = builder.parse("C:/test.xml");

		Element root = xmlDoc.getDocumentElement();

		listNodes(root, "");

	}

	public static void listNodes(Node node, String space) {

		Element element = null;

		// if (node instanceof Element) {

		if (node.getNodeType() == Node.ELEMENT_NODE) {

			element = (Element) node;

			Text textNode = (Text) element.getFirstChild();

			String tagName = element.getTagName();

			String tagValue = textNode.getData().trim();

			System.out.print(space + tagName);

			if (!"".equals(tagValue)) {

				System.out.print("=" + tagValue);

			}

			NamedNodeMap attributes = element.getAttributes();

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

				Node attribute = attributes.item(i);

				String name = attribute.getNodeName();

				String value = attribute.getNodeValue();

				System.out.print("    " + name + ":" + value);

			}

			System.out.println();

		}

		NodeList list = node.getChildNodes();

		int childNodesLength = list.getLength();

		if (childNodesLength > 0) {

			for (int i = 0; i < childNodesLength; i++) {

				listNodes(list.item(i), space + "    ");

			}

		}

	}

}