package cn.sunjiachao.javabook.jdom;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.List;

import org.jdom2.Document;
import org.jdom2.Element;
import org.jdom2.JDOMException;
import org.jdom2.input.SAXBuilder;
import org.jdom2.output.Format;
import org.jdom2.output.XMLOutputter;

public class XMLMain {

	public void write() {

		Element root = new Element("people");//jdom以元素为一个节点的单位
		Document document = new Document(root);

		Element male = new Element("male");//子元素
		male.setAttribute("id", "1");//属性
		male.addContent(new Element("name").setText("tom"));//叶子节点
		male.addContent(new Element("age").setText("24"));

		document.getRootElement().addContent(male);//加入根元素
		XMLOutputter output = new XMLOutputter();//输出
		output.setFormat(Format.getPrettyFormat());
		File xmlFile = new File("data2.xml");
		try {
			output.output(document, new FileWriter(xmlFile));
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public void read() {

		SAXBuilder builder = new SAXBuilder();
		File xmlFile = new File("data.xml");

		try {
			Document document = builder.build(xmlFile);// 获取文档对象
			Element root = document.getRootElement();// 获取根元素
			List<Element> children = root.getChildren();// 获取子元素集合，同一层级
			for (Element ele : children) {
				// ...
			}
		} catch (JDOMException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

	}

	public static void main(String[] args) {
		XMLMain main = new XMLMain();
		main.read();
		main.write();
	}

}