javaxml文件基础:Dom怎么生成xml文件
package CreateXmlByDom; import java.io.File; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import javax.xml.transform.Result; import javax.xml.transform.Source; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerException; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import org.w3c.dom.Document; import org.w3c.dom.Element; public class testCom { public static void main(String[] args) throws Exception{ //1:第一步获取DocumentBuilderFactory对象 DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance(); //2:获取一个DocumentBuilder对象 DocumentBuilder db= factory.newDocumentBuilder(); //3:创建一个Document类型的空文档 Document doc=db.newDocument(); //4:创建doc文档中的根节点bookstore Element bookstore=doc.createElement("bookstore"); //5:创建一个bookstore节点的子节点book Element book=doc.createElement("book"); //6:为book节点设置属性 book.setAttribute("id ", "1"); //7:为book设置文本内容,包括四个文本内容,name, author,price ,version Element name=doc.createElement("name");//继续设定一个孙节点 name.setTextContent("Core java"); Element author=doc.createElement("author");//继续设定一个孙节点 author.setTextContent("Horstmann"); Element price=doc.createElement("price");//继续设定一个孙节点 price.setTextContent("36"); Element version=doc.createElement("version");//继续设定一个孙节点 version.setTextContent("4.0"); //8:同时的将创建的bookstore 节点添加到doc文件中去 doc.appendChild(bookstore); //9:将book节点添加到bookstore节点中去 bookstore.appendChild(book); //10:将name,author,price ,version 等文本添加到book节点中去 book.appendChild(name); book.appendChild(author); book.appendChild(price); book.appendChild(version); //11:获得TransformerFactory对象,并且通过newInstance()方法实例化TransformerFactory对象 TransformerFactory transformerfactory=TransformerFactory.newInstance();//工厂类 //12:获得Transformer对象,注意这里面的transform的方法
// transformer.transform(new DOMSource(doc), new StreamResult(new File("bookstore.xml")));
Transformer transformer=transformerfactory.newTransformer();
Source xmlsource=new DOMSource(doc);
Result outputTarget = new StreamResult(new File("bookstore1.xml"));
transformer.transform(xmlsource, outputTarget); } }