Dom4J的基本使用

初始化数据

 <?xml version="1.0" encoding="UTF-8"?>
 <RESULT>
     <VALUE>　　
         <NO>A1234</NO>　　
         <ADDR>陕西省西安市</ADDR>
     </VALUE>
     <VALUE>　　
         <NO>D1234</NO> 　
         <ADDR>陕西省咸阳市</ADDR>
     </VALUE>
 </RESULT>

DOM解析

 package com.example.dom4j;

 import org.w3c.dom.Document;
 import org.w3c.dom.NodeList;

 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
 import java.io.File;

 /**
  * @program: dom4j
  * @description:
  * @author:
  * @create: 2019-03-23 13:51:22
  */
 public class Dom {
     public static void main(String[] args) {
         File file = new File("D://data.xml");
         DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
         try {
             DocumentBuilder builder = factory.newDocumentBuilder();
             Document doc = builder.parse(file);
             NodeList n1 = doc.getElementsByTagName("VALUE");
             for (int i = 0; i < n1.getLength(); i++) {
                 System.out.println("车牌号 = " + doc.getElementsByTagName("NO").item(i).getFirstChild().getNodeValue());
                 System.out.println("地址 = " + doc.getElementsByTagName("ADDR").item(i).getFirstChild().getNodeValue());
             }

         } catch (Exception e) {
             e.printStackTrace();
         }
     }
 }

DOM4J解析

 package com.example.dom4j;

 import org.dom4j.Document;
 import org.dom4j.DocumentException;
 import org.dom4j.Element;
 import org.dom4j.io.SAXReader;

 import java.io.File;
 import java.util.Iterator;

 /**
  * @program: dom4j
  * @description:
  * @author:
  * @create: 2019-03-23 14:07:56
  */
 public class Dom4j {
     public static void main(String[] args) {
         long lasting = System.currentTimeMillis();
         File file = new File("D://data.xml");
         SAXReader saxReader = new SAXReader();
         try {
             Document doc = saxReader.read(file);
             Element rootElement = doc.getRootElement();
             System.out.println("rootElement = " + rootElement);
             Iterator value = rootElement.elementIterator("VALUE");
             while (value.hasNext()){
                 Element element  = (Element) value.next();
                 System.out.println("车牌号码："+element.elementText("NO"));
                 System.out.println("车主地址："+element.elementText("ADDR"));
             }

         } catch (DocumentException e) {
             e.printStackTrace();
         }

     }
 }