/*
?*?創建日期?2005-2-15
?*/
package?com.tiantian.xmlguestbook;//com.tiantian
import?org.jdom.Document;
import?org.jdom.Element;
import?org.jdom.JDOMException;
import?org.jdom.input.SAXBuilder;
import?org.jdom.output.*;
import?java.io.*;
/**
?*?@author?tiantian
?*/
public?class?XMLguestbookBean?{
????public?static?void?main(String[]?args)?{
????????XMLguestbookBean?exam?=?new?XMLguestbookBean();//聲明XMLguestbookBean的一個實例
????????exam.addmessage("james",?"202.11.223.22",?"hahah");//增加一個留言，測試
????}
????public?Element?root?=?null;//定義根
????public?XMLguestbookBean()?{
????????//空的構造函數
????}
????private?void?addmessage(String?name,?String?ip,?String?content)?{
????????try?{
????????????SAXBuilder?sb?=?new?SAXBuilder();
????????????Document?doc?=?sb.build("guestbook.xml");
????????????root?=?doc.getRootElement();//取得根元素
????????????Element?newMessage?=?new?Element("message");
????????????Element?newName?=?new?Element("name");
????????????Element?newContent?=?new?Element("content");
????????????Element?newIp?=?new?Element("ip");
????????????newName.setText(name);?//填入名字
????????????newContent.setText(content);//填入設置
????????????newIp.setText(ip);//填入IP
????????????newMessage.addContent(newName);//添加名字到message
????????????newMessage.addContent(newIp);//添加ip地址到message
????????????newMessage.addContent(newContent);//添加留言內容到message
????????????root.addContent(newMessage);//把message添加到根上
????????????Format?format?=?Format.getCompactFormat();
????????????format.setEncoding("gb2312");?//設置xml文件的字符為gb2312
????????????format.setIndent("????");
????????????XMLOutputter?XMLOut?=?new?XMLOutputter(format);//在元素后換行，每一層元素縮排四格
????????????XMLOut.output(doc,?new?FileOutputStream("guestbook.xml"));//輸出到文件
????????}?catch?(FileNotFoundException?e)?{
????????????//?文件未找到
????????????e.printStackTrace();
????????}?catch?(JDOMException?e)?{
????????????//?JDOM異常
????????????e.printStackTrace();
????????}?catch?(IOException?e)?{
????????????//?IO異常
????????????e.printStackTrace();
????????}
????}
}