Use TreeWalker To Read XML File

Ta sẽ tạo một project với tên module6, tiếp đó tạo ra một file xml như dưới đây với tên Employee.xml:
<?xml version="1.0" encoding="UTF-8" standalone="no"?><EmployeeList>
    <Employee>
        <Name>nguyen van0</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van1</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van2</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van3</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van4</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van5</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van6</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van7</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van8</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van9</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van10</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van11</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van12</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van13</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van14</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van15</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van16</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van17</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van18</Name>
        <Address>address1</Address>
    </Employee>
    <Employee>
        <Name>nguyen van19</Name>
        <Address>address1</Address>
    </Employee>
</EmployeeList>

Ở trang lớp chứa hàm main chúng ta viết các câu lệnh như dưới đây:

package module6;

import java.io.File;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.traversal.DocumentTraversal;
import org.w3c.dom.traversal.NodeFilter;
import org.w3c.dom.traversal.TreeWalker;
import org.xml.sax.SAXException;

/**
 *
 * @author Nguyen Minh An
 */
public class Module6 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        try {
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = factory.newDocumentBuilder();

            if (!builder.getDOMImplementation().hasFeature("traversal", "2.0")) {
                System.out.println("Traversal 2.0 is required");
                System.exit(-1);
            }

            Document document = builder.parse(new File("D:\\NetBean\\Module6\\src\\Employee.xml"));

            DocumentTraversal traversal = (DocumentTraversal) document;
            TreeWalker tw = traversal.createTreeWalker(document, NodeFilter.SHOW_ALL, null, true);
            
            Node node = tw.nextNode();
            
            while (node != null) {                
                if ("Name".equals(node.getNodeName())) {
                    System.out.println(node.getTextContent());
                }
                if ("Address".equals(node.getNodeName())) {
                    System.out.println(node.getTextContent());
                }
                node = tw.nextNode();
            }
            
        } catch (SAXException | IOException | ParserConfigurationException ex) {
            Logger.getLogger(Module6.class.getName()).log(Level.SEVERE, null, ex);
        }

    }

}

Source Code