Dom解析xml小程序

[html]
package WildCat.Xml.Dom;

import java.io.File;
import java.io.IOException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Attr;
import org.w3c.dom.Comment;
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.xml.sax.SAXException;

public class testXml1_3 {

    /**
     * @param args
     * @throws ParserConfigurationException
     * @throws IOException
     * @throws SAXException
     */
    public static void main(String[] args) throws ParserConfigurationException, SAXException, IOException {
        //step1.获得工厂
        DocumentBuilderFactory dbf=DocumentBuilderFactory.newInstance();
        //setp2.获得解析器
        DocumentBuilder db=dbf.newDocumentBuilder();
        //step3获得Document对象(根节点)
        Document doc=db.parse(new File("test.xml"));
        //获得根元素节点
        Element root=doc.getDocumentElement();

        parseElement(root);
    }

    public static void parseElement(Element ele)
    {
        //get the tag'sName
        String tagName=ele.getNodeName();
        //获得所有的孩子
        NodeList children=ele.getChildNodes();
        System.out.print("<"+tagName);
        NamedNodeMap map=ele.getAttributes();
        if (null!=map)
        {
            for (int j=0;j<map.getLength();j++)
            {
                //向下类型转换
                Attr attr=(Attr)map.item(j);
                //获得属性名
                String attrName=attr.getNodeName();
                //获得属性值
                String attrValue=attr.getNodeValue();
                System.out.print(" "+attrName+"=\""+attrValue+"\"");

            }

        }
        System.out.print(">");

        for (int i=0;i<children.getLength();i++)
        {
            Node node=children.item(i);
            //get the node's type
            short nodeType=node.getNodeType();
            if (Node.ELEMENT_NODE==nodeType)
            {
                //go on 递归
                parseElement((Element)node);
            }
            else if (Node.TEXT_NODE==nodeType)
            {
                //if it is text
                System.out.print(node.getNodeValue());

            }
            else if (Node.COMMENT_NODE==nodeType)
            {
                System.out.print("");
            }

        }
        System.out.print("</"+tagName+">");



    }



}

作者：superlele123

补充：web前端 , HTML 5 ,