[Java] JDOM 读取 xml 文件 示例程序初步

JDOM 读取 xml 示例程序

sample.xml

<?xml version="1.0" encoding="UTF-8"?>
<HD>
 <disk name="C">
  <capacity>8G</capacity>
  <directories>200</directories>
  <files>1580</files>
 </disk>
 <disk name="D"> 
  <capacity>10G</capacity>
  <directories>500</directories>
  <files>3000</files> 
 </disk>
</HD>

Sample2

import java.util.*;
import org.jdom.*;
import org.jdom.input.SAXBuilder;
import org.jdom.xpath.XPath;

public class Sample2 {
	public static void main(String[] args) throws Exception {
		SAXBuilder sb = new SAXBuilder();
		Document doc = sb.build(Sample2.class.getClassLoader()
				.getResourceAsStream("sample.xml"));
		Element root = doc.getRootElement();
		System.out.println(root);
		System.out.println("haha");
		List list = XPath.selectNodes(root, "/HD/disk");
		System.out.println(list.size());
		for (int i = 0; i > list.size(); i++) {
			Element disk_element = (Element) list.get(i);
			String name = disk_element.getAttributeValue("name");
			String capacity = ((Text) XPath.selectSingleNode(disk_element,
					"//disk[@name='" + name + "']/capacity/text()"))
					.getTextNormalize();
			String directories = ((Text) XPath.selectSingleNode(disk_element,
					"//disk[@name='" + name + "']/directories/text()"))
					.getTextNormalize();
			String files = ((Text) XPath.selectSingleNode(disk_element,
					"//disk[@name='" + name + "']/files/text()"))
					.getTextNormalize();
			System.out.println("磁盘信息:");
			System.out.println("分区盘符:" + name);
			System.out.println("分区容量:" + capacity);
			System.out.println("目录数:" + directories);
			System.out.println("文件数:" + files);
			System.out.println("-----------------------------------");
		}
	}
}