Parsing
of an XML document can be easily done using Java when you load the XML
document in the document object. So you have to create a document object
and then load that object with the XML document that you want to parse.
To work with the document object you have to include certain classes
in your program and this is achieved by importing some packages as given
below.
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import
org.w3c.dom.Document;
import org.w3c.dom.DOMException;
import org.w3c.dom.Element;
The next
three lines of code would give you an idea on how to create the document
object using Java.
DocumentBuilderFactory
dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse (new File("ur_xml_file.xml"));
Upon interpreting
the above code you can find that an DocumentBuilderFactory object is
created first and from that a DocumentBuilder is created. The DocumentBuilder
is used to parse the XML file and load the XML file into the document
object.
Once you
have the XML file loaded in the document object, you can easily work
with the XML file according to your needs. There are methods like, getDocumentElement().getNodeName(),getElementsByTagName()
that can be used to work with the XML document.
