xml文件:
Xml代码
<?xml version="1.0" encoding="GB2312"?> <RESULT> <VALUE> <NO>A1234</NO> <ADDR>河南省郑州市</ADDR> </VALUE> <VALUE> <NO>B1234</NO> <ADDR>河南省郑州市二七区</ADDR> </VALUE> </RESULT> |
第一种 DOM 实现方法:
Java代码
import java.io.File; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import org.w3c.dom.Document; import org.w3c.dom.NodeList; public class MyXMLReader2DOM { public static void main(String arge[]) { long lasting = System.currentTimeMillis(); try { File f = new File("data_10k.xml"); DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); DocumentBuilder builder = factory.newDocumentBuilder(); Document doc = builder.parse(f); NodeList nl = doc.getElementsByTagName("VALUE"); for (int i = 0; i < nl.getLength(); i++) { System.out.print("车牌号码:"+ doc.getElementsByTagName("NO").item(i).getFirstChild().getNodeValue()); System.out.println("车主地址:"+ doc.getElementsByTagName("ADDR").item(i).getFirstChild().getNodeValue()); System.out.println("运行时间:" + (System.currentTimeMillis() - lasting)+ "毫秒"); } } } catch (Exception e) { e.printStackTrace(); } } } |
第二种,DOM4J实现方法:
Java代码
import java.io.*; import java.util.*; import org.dom4j.*; import org.dom4j.io.*; public class MyXMLReader2DOM4J { public static void main(String arge[]) { long lasting = System.currentTimeMillis(); try { File f = new File("data_10k.xml"); SAXReader reader = new SAXReader(); Document doc = reader.read(f); Element root = doc.getRootElement(); Element foo; for (Iterator i = root.elementIterator("VALUE"); i.hasNext();) { foo = (Element) i.next(); System.out.print("车牌号码:" + foo.elementText("NO")); System.out.println("车主地址:" + foo.elementText("ADDR")); } System.out.println("运行时间:" + (System.currentTimeMillis() - lasting) + "毫秒"); } } catch (Exception e) { e.printStackTrace(); } } } |