Hello,
I've implemented the custom error 404 page solution from
http://www.mkyong.com/wicket/how-do-configure-404-error-page-in-wicket-solution/
http://www.mkyong.com/wicket/how-do-configure-404-error-page-in-wicket-solution/
. However, I noticed some strange behavior:
There is a home page with a modal window in it, so the page is not
stateless:
public class TestPage extends WebPage {
public TestPage() {
}
@Override
protected void onInitialize() {
super.onInitialize();
add(new ModalWindow("modal_window"));
}
}
The custom error page is stateless:
public class PageNotFound extends WebPage {
public PageNotFound() {
super();
}
public PageNotFound(IModel<?> model) {
super(model);
}
public PageNotFound(PageParameters parameters) {
super(parameters);
}
}
The application class is:
public class TestApplication extends WebApplication {
public TestApplication() {
}
@Override
protected void init() {
super.init();
ICompoundRequestMapper rootRequestMapper =
getRootRequestMapperAsCompound();
rootRequestMapper.add(new MountedMapper("/home",
TestPage.class));
rootRequestMapper.add(new MountedMapper("/404",
PageNotFound.class));
}
@Override
public Class<? extends Page> getHomePage() {
return TestPage.class;
}
}
... and the web.xml:
<filter>
<filter-name>wicket.WicketWarp</filter-name>
<filter-class>org.apache.wicket.protocol.http.WicketFilter</filter-class>
<init-param>
<param-name>applicationClassName</param-name>
<param-value>org.apache.wicket.TestApplication</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>wicket.WicketWarp</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>ERROR</dispatcher>
</filter-mapping>
<error-page>
<error-code>404</error-code>
<location>/404</location>
</error-page>
Since the home page is not stateless the page id is displayed also. When:
rootRequestMapper.add(new MountedMapper("/404", PageNotFound.class));
is present in the TestApplication the id of the home page is incremented by
2 each time the page is displayed (home?0, home?2, home?4..). When the error
page mapping is commented the id is incremented by 1 (as expected). From I
was able to trace in the wicket code on each request for the home page, also
a request for the error 404 custom page is made and because of this the id
is incremented by 2. Is this a normal behavior? Thanks in advance.
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