DOM Parser

• Our goal is to get a Document object that represents our XML file. Since Document is an interface we must use a factory.

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import java.io.File;
import org.w3c.dom.Document;

public class OrderProcessor {
  public static void main (String args[]) {
    File docFile = new File("orders.xml");
    Document doc = null;      
    try {
      DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
      
      //A document builder builds specific documents.
      DocumentBuilder db = dbf.newDocumentBuilder();

      //This call parses the file and creates the Document in memory.
      doc = db.parse(docFile);
    } catch (Exception e) {
      System.out.print("Problem parsing the file.");
    }
  }
}