How to make a HTTP connection to a website

[Alayna]

I want to connect to a website from my Java application, download its source and process it. How can i download the source code of a web page?

[levent]

You can use URLConnection class.

Here is a sample code:

        try {
            URL google = new URL("http://www.google.com/");
            URLConnection googleConnection = google.openConnection();
            DataInputStream dis = new DataInputStream(googleConnection.getInputStream());
          
            String inputLine;

            while ((inputLine = dis.readLine()) != null) {
                System.out.println(inputLine);
            }

            dis.close();

        } catch (MalformedURLException me) {
            System.out.println("MalformedURLException: " + me);
        } catch (IOException ioe) {
            System.out.println("IOException: " + ioe);
        }

If you have more advanced requirements, i recommend you to use Apache HTTPClient library.