Java DOM4J解析器 - 查詢XML文檔
演示示例
這是輸入需要解析xml文件：
演示示例：
DOM4JQueryDemo.java
package com.yiibai.xml; import java.io.File; import java.util.List; import org.dom4j.Document; import org.dom4j.DocumentException; import org.dom4j.Element; import org.dom4j.Node; import org.dom4j.io.SAXReader; public class DOM4JQueryDemo { public static void main(String[] args) { try { File inputFile = new File("input.txt"); SAXReader reader = new SAXReader(); Document document = reader.read( inputFile ); System.out.println("Root element :" + document.getRootElement().getName()); Element classElement = document.getRootElement(); List<Node> nodes = document.selectNodes("/class/student[@rollno='493']" ); System.out.println("----------------------------"); for (Node node : nodes) { System.out.println("\nCurrent Element :" + node.getName()); System.out.println("Student roll no : " + node.valueOf("@rollno") ); System.out.println("First Name : " + node.selectSingleNode("firstname").getText()); System.out.println("Last Name : " + node.selectSingleNode("lastname").getText()); System.out.println("First Name : " + node.selectSingleNode("nickname").getText()); System.out.println("Marks : " + node.selectSingleNode("marks").getText()); } } catch (DocumentException e) { e.printStackTrace(); } } }
這將產生以下結果:
Root element :class
Current Element :student
Student roll no : 493
First Name : Vaneet
Last Name : Gupta
First Name : vinni
Marks : 95