Wicket Plugin

Added by Graeme Rocher, last edited by David Scurrah on Mar 19, 2008  (view change)

Wicket Plugin

If you want to use the Wicket framework as an alternative view rendering technology ontop of GORM then this plug-in is for you

Features

The plug-in provides the following features:

  1. Hot reloading of the WicketApplication class
  2. Hot reloading of Wicket Pages and views
  3. Integration with GORM and the underlying Spring container

Installing the Plug-in

The plug-in is available from the Grails central repository and can be installed with:

grails install-plugin wicket

The installation process will create a class called WicketApplication at the location grails-app/conf/WicketApplication.groovy

Pages and Views

The plug-in provides a new directory under grails-app/pages where you should create your Wicket page classes which should end in the convention "Page" if you want hot reloading to happen. For example:

grails-app/pages/HelloPage.groovy
import org.apache.wicket.markup.html.WebPage
import org.apache.wicket.markup.html.basic.Label
import org.apache.wicket.PageParameters

public class HelloPage extends WebPage
{
    public HelloPage(final PageParameters parameters) {
        add(new Label("message", "If you see this message wicket is properly configured and running!"));
    }
}

Now define the view in grails-app/views:

grails-app/views/HelloPage.html
<html>
<body>
    <span wicket:id="message">Message goes here</span>
</body>
</html>

Running the Application

Start-up your app with grails run-app then access http://localhost:8080/wicket-example/app

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Comments (2)

 

  1. Apr 18, 2008

    jamesqiu says:

    A problem: If I create a "MyPage.groovy" and "MyPage.html", How can I view MyPa...

    A problem:

    If I create a "MyPage.groovy" and "MyPage.html", How can I view MyPage?

    Any configuration in "WicketApplication.groovy" ?

    What's the url ? ("http://localhost:8080/wicket-example/app/MyPage" or ..)

    Thanks 

  2. Nov 29, 2008

    JF ROMPRE says:

    First, one should know that in the above example '/' is configured to go to the ...

    First, one should know that in the above example '/' is configured to go to the usual 'Welcome to Grails' page, and /app yields the HomePage wicket page (sadly, it took me a while to figure it out . To give control of the root to Wicket, go to /plugins/wicket-<version number>/WicketGrailsPlugin.groovy and edit the line mapping the wicket servlet in the closure building the deployment descriptor:

    ...
    def mappings = xml.'servlet-mapping'[0]
    ...
                    'servlet-name'('wicket')
                    'url-pattern'('/')        //changed from  'url-pattern'('/app/')
    ..
    To add other pages, one way is to "mount" them to a path expression, e.g. '/hello' to
    the HelloPage above. Simply implement the init() method in grails-app/conf/WicketApplication.groovy, e.g.

    ....
    protected void init() {
        mountBookmarkablePage("/hello", HelloPage.class);
    }
    ...

    See wicket javadocs for org.apache.wicket.protocol.http.WebApplication