DOM解析XML文件

public class DomParseXml {

	public static void main(String[] args) {

		// 获得解析器工厂
		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

		// 获得解析器
		try {
			DocumentBuilder builder = factory.newDocumentBuilder();
			// 加载文件，转换成Document
			Document doc = builder.parse("studentinfo.xml");

			// 解析
			NodeList stulist = doc.getElementsByTagName("stu");
			System.out.println("一共有:" + stulist.getLength() + "个节点");
			for (int i = 0; i < stulist.getLength(); i++) {
				Node stu = stulist.item(i);
				
				// 获得stu节点下的子节点
				NodeList childList = stu.getChildNodes();
				for (int j = 0; j < childList.getLength(); j++) {
					if (childList.item(j).getNodeType() == Node.ELEMENT_NODE) {
						System.out.println("节点名称:" + childList.item(j).getNodeName());
						System.out.println("节点的值:" + childList.item(j).getFirstChild().getNodeValue());
						System.out.println("---------------------------");
					}