Java自动创建XML

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package test; 

import java.io.FileOutputStream; 
import java.io.IOException; 
import java.io.PrintStream; 
import java.io.StringWriter; 

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

import org.w3c.dom.Document; 
import org.w3c.dom.Element; 

import com.sun.org.apache.xml.internal.serialize.OutputFormat; 
import com.sun.org.apache.xml.internal.serialize.XMLSerializer; 

public class CreateXml { 

 /** 
  * @param args 
  * @throws ParserConfigurationException  
  */ 
 public static void main(String[] args) throws ParserConfigurationException { 
  //   
  DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); 
  //  
  DocumentBuilder db = dbf.newDocumentBuilder(); 
  Document doc = db.newDocument(); 
  // 创建根元素 root  
  Element root = doc.createElement("Student"); 
  // 创建子元素 name  
  Element item = doc.createElement("name"); 
  // 创建子元素的文本  
  item.appendChild(doc.createTextNode("wangyanping")); 
  // 为根元素添加节点  
  root.appendChild(item); 
  // 创建age元素  
  item = doc.createElement("age"); 
  item.appendChild(doc.createTextNode("28")); 
  // 为根元素添加age节点  
  root.appendChild(item); 
  // high  
  item = doc.createElement("high"); 
  item.appendChild(doc.createTextNode("180cm")); 
  root.appendChild(item); 
   
  item = doc.createElement("score"); 
  // 创建score的子元素lessons  
  Element lessons = doc.createElement("lessons"); 
  // 创建lessons的子元素lesson  
  Element lesson = doc.createElement("java"); 
  // 为子元素添加文本  
  lesson.appendChild(doc.createTextNode("90")); 
  // 把子元素添加到父节点上  
  lessons.appendChild(lesson); 
  // 把子元素添加到父节点上  
  item.appendChild(lessons); 
   
  lessons = doc.createElement("lessons"); 
  lesson = doc.createElement("struts"); 
  lesson.appendChild(doc.createTextNode("80")); 
  lessons.appendChild(lesson); 
  item.appendChild(lessons); 
   
  lessons = doc.createElement("lessons"); 
  lesson = doc.createElement("hibernet"); 
  lesson.appendChild(doc.createTextNode("100")); 
  lessons.appendChild(lesson); 
  item.appendChild(lessons); 
   
  root.appendChild(item); 
  // 为文档添加根节点  
  doc.appendChild(root); 
  //  指定输出格式  
  OutputFormat format = new OutputFormat(doc, "utf-8", true); 
  StringWriter stringOut = new StringWriter(); 
  XMLSerializer serial = new XMLSerializer(stringOut,format); 
  // 将DOM数转化成字符串  
  try { 
   serial.asDOMSerializer(); 
   serial.serialize(doc.getDocumentElement()); 
   // 创建文件输出流  
   PrintStream ps = new PrintStream(new FileOutputStream("new.xml")); 
   // 输出ｘｍｌ  
   ps.println(stringOut.toString()); 
  } catch (IOException e) { 
   // TODO Auto-generated catch block  
   e.printStackTrace(); 
  } 
    

 } 

} 

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