package anby.com;import java.io.File;import java.io.IOException;import javax.xml.parsers.DocumentBuilder;import javax.xml.parsers.DocumentBuilderFactory;import javax.xml.parsers.ParserConfigurationException;import javax.xml.transform.Source;import javax.xml.transform.Transformer;import javax.xml.transform.TransformerConfigurationException;import javax.xml.transform.TransformerException;import javax.xml.transform.TransformerFactory;import javax.xml.transform.TransformerFactoryConfigurationError;import javax.xml.transform.Result;import javax.xml.transform.dom.DOMSource;import javax.xml.transform.stream.StreamResult;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 XmlCUP {	Book book=new Book();	public static void main(String args[]) throws Exception {		Document doc = getDocument();		 //获取根元素		Element root=doc.getDocumentElement();		  //创建子节点		Element childroot=doc.createElement("book");		//将子元素增加到根元素中		root.appendChild(childroot);		NodeList nodeHead = doc.getChildNodes();		for (int i = 0; i < nodeHead.getLength(); i++) {			Node childNode = nodeHead.item(i);			Element ele = (Element) childNode;			if ("titile".equals(ele.getElementsByTagName("id"))) {               ele.setTextContent("b003");//修改节点内容               //删除子节点就代表着删除父节点               Node parent =ele.getParentNode();               parent.removeChild(ele);                                          			}		}				SaveXml(doc);	}        //将Document对象保存为xml文档	private static void SaveXml(Document doc) throws Exception {		Transformer tansform = TransformerFactory.newInstance()				.newTransformer();		tansform.transform(new DOMSource(doc), new StreamResult("Result.xml"));	}	// 从xml文件中获取Document对象的实例	public static Document getDocument() throws Exception {		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();		DocumentBuilder docbuilder = factory.newDocumentBuilder();		Document doc = docbuilder.parse("Book.xml");		return doc;	}}

　　

 

     
       
        
       
        呐喊
          
       
        18
         
        
        
       
        彷徨
          
       
        15