Source Code : List an XML document with DOM parser

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List an XML document with DOM parser

         

import java.io.File;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.DocumentType;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;

public class MainClass implements ErrorHandler {
  public static void main(String args[]) throws Exception {
    DocumentBuilderFactory builderFactory = DocumentBuilderFactory
        .newInstance();
    builderFactory.setNamespaceAware(true);
    builderFactory.setValidating(true);

    DocumentBuilder builder = null;
    builder = builderFactory.newDocumentBuilder();
    builder.setErrorHandler(new MainClass());
    Document xmlDoc = null;

    xmlDoc = builder.parse(new File("y.xml"));
    DocumentType doctype = xmlDoc.getDoctype();
    System.out.println("DOCTYPE node:
" + doctype);
    listNodes(xmlDoc.getDocumentElement(), "");
  }

  static void listNodes(Node node, String indent) {
    String nodeName = node.getNodeName();
    System.out.println(indent + nodeName + " Node, type is "
        + node.getClass().getName() + ":");
    System.out.println(indent + " " + node);

    NodeList list = node.getChildNodes();
    if (list.getLength() > 0) {
      System.out.println(indent + "Child Nodes of " + nodeName + " are:");
      for (int i = 0; i < list.getLength(); i++)
        listNodes(list.item(i), indent + " ");
    }
  }

  public void fatalError(SAXParseException spe) throws SAXException {
    System.out.println("Fatal error at line " + spe.getLineNumber());
    System.out.println(spe.getMessage());
    throw spe;
  }

  public void warning(SAXParseException spe) {
    System.out.println("Warning at line " + spe.getLineNumber());
    System.out.println(spe.getMessage());
  }

  public void error(SAXParseException spe) {
    System.out.println("Error at line " + spe.getLineNumber());
    System.out.println(spe.getMessage());
  }
}
<?xml version="1.0"?>
<!DOCTYPE address SYSTEM "AddressDoc.dtd">
<address>
  <buildingnumber> 29 </buildingnumber>
  <street> South Lasalle Street</street>
  <city>Chicago</city>
  <state>Illinois</state>
  <zip>60603</zip>
</address>



<!ELEMENT address (buildingnumber, street, city, state, zip)>
<!ELEMENT buildingnumber (#PCDATA)>
<!ELEMENT street (#PCDATA)>
<!ELEMENT city (#PCDATA)>
<!ELEMENT state (#PCDATA)>
<!ELEMENT zip (#PCDATA)>

   
    
    
    
    
    
    
    
  

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