JAVA读取XML，JAVA读取XML文档，JAVA解析XML文档，JAVA与XML，XML文档解析(Document Object Model, DOM)

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 + "    ");
}
}
}
}