Mega Code Archive
StAX parser
<![CDATA[
/*
This program is a part of the companion code for Core Java 8th ed.
(http://horstmann.com/corejava)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.io.InputStream;
import java.net.URL;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamReader;
/**
* This program demonstrates how to use a StAX parser. The program prints all hyperlinks links of an
* XHTML web page. <br>
* Usage: java StAXTest url
* @author Cay Horstmann
* @version 1.0 2007-06-23
*/
public class StAXTest
{
public static void main(String[] args) throws Exception
{
String urlString;
if (args.length == 0)
{
urlString = "http://www.w3c.org";
System.out.println("Using " + urlString);
}
else urlString = args[0];
URL url = new URL(urlString);
InputStream in = url.openStream();
XMLInputFactory factory = XMLInputFactory.newInstance();
XMLStreamReader parser = factory.createXMLStreamReader(in);
while (parser.hasNext())
{
int event = parser.next();
if (event == XMLStreamConstants.START_ELEMENT)
{
if (parser.getLocalName().equals("a"))
{
String href = parser.getAttributeValue(null, "href");
if (href != null)
System.out.println(href);
}
}
}
}
}
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