导入jdom 包。
一:xml文件 test.xml 的内容:
<?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>
import org.jdom.Document; import org.jdom.Element; import org.jdom.JDOMException; import org.jdom.input.SAXBuilder; public class Test { public static void main(String[] args) throws Exception{ SAXBuilder sb=new SAXBuilder(); // InputStream in = Test.class.getClassLoader().getResourceAsStream("D:\\test.xml"); File file = new File("D:\\test.xml"); InputStream in = new FileInputStream(file); Document doc=sb.build(in); // Document doc=sb.build(Test.class.getClassLoader().getResourceAsStream("test.xml")); //构造文档对象 Element root=doc.getRootElement(); //获取根元素HD List list=root.getChildren("disk");//取名字为disk的所有元素 for(int i=0;i<list.size();i++){ Element element=(Element)list.get(i); String name = element.getAttributeValue("name");//获取name属性值 String capacity=element.getChildText("capacity");//取disk子元素capacity的内容 String directories=element.getChildText("directories");//取disk子元素directories的内容 String files=element.getChildText("files");//取disk子元素files的内容 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("-----------------------------------"); } } }
输出:
磁盘信息:
分区盘符:C
分区容量:8G
目录数:200
文件数:1580
-----------------------------------
磁盘信息:
分区盘符:D
分区容量:10G
目录数:500
文件数:3000
-----------------------------------
二:解析传入的xml格式的字符串:
import org.jdom.Document; import org.jdom.Element; import org.jdom.JDOMException; import org.jdom.input.SAXBuilder; public class Test { public static void main(String[] args) throws Exception{ SAXBuilder sb=new SAXBuilder(); // InputStream in = Test.class.getClassLoader().getResourceAsStream("D:\\test.xml"); // File file = new File("D:\\test.xml"); // InputStream in = new FileInputStream(file); // Document doc=sb.build(in); String str = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><HD><disk name=\"C\"><capacity>8G</capacity> <directories>200</directories> <files>1580</files></disk> </HD> "; InputStream in = new ByteArrayInputStream(str.getBytes()); InputStream in2 = new ByteArrayInputStream(str.getBytes("UTF-8")); Document doc=sb.build(in2); // Document doc=sb.build(Test.class.getClassLoader().getResourceAsStream("test.xml")); //构造文档对象 Element root=doc.getRootElement(); //获取根元素HD List list=root.getChildren("disk");//取名字为disk的所有元素 for(int i=0;i<list.size();i++){ Element element=(Element)list.get(i); String name = element.getAttributeValue("name");//获取name属性值 String capacity=element.getChildText("capacity");//取disk子元素capacity的内容 String directories=element.getChildText("directories");//取disk子元素directories的内容 String files=element.getChildText("files");//取disk子元素files的内容 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("-----------------------------------"); } } }