Source Viewer : WEB-INF/classes/org/apache/click/examples/page/ajax/AjaxRedirectPage.java

package org.apache.click.examples.page.ajax;

import java.util.Date;
import org.apache.click.ActionResult;
import org.apache.click.Context;
import org.apache.click.Control;
import org.apache.click.ajax.DefaultAjaxBehavior;
import org.apache.click.control.ActionLink;
import org.apache.click.examples.page.BorderPage;

/**
 * Provides an example Page showing how to perform redirects with Ajax requests.
 *
 * Since Ajax does not support redirects we return the url to redirect to in a
 * custom response url called 'REDIRECT_URL'. The client-side then uses JavaScript
 * to simulate a redirect by setting the value of window.location to the redirect
 * url.
 *
 */
public class AjaxRedirectPage extends BorderPage {

    private static final long serialVersionUID = 1L;
    private ActionLink redirectLink = new ActionLink("redirectLink");

    @Override
    public void onInit() {
        super.onInit();
        redirectLink.setId("redirectLinkId");
        addControl(redirectLink);

        redirectLink.addBehavior(new DefaultAjaxBehavior() {

            @Override
            public ActionResult onAction(Control source) {
                Context context = getContext();
                context.setFlashAttribute("flash", "Redirected at " + new Date());

            String redirectUrl = context.getPagePath(AjaxRedirectPage.class);
            String contextPath = context.getRequest().getContextPath();
            redirectUrl = contextPath + redirectUrl;

            context.getResponse().setHeader("REDIRECT_URL",redirectUrl);

            // We are redirecting so no response is returned
            return null;
            }
        });
    }
}