THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
In your WebPage...
...
public class JsonWebPage extends WebPage {
public JsonWebPage(PageParameters pageParameters) {
getRequestCycle().scheduleRequestHandlerAfterCurrent(new IRequestTarget() {
@Override
public void detach(RequestCycle requestCycle) {
// Nothing to do here.
}
@Override
public void respond(RequestCycle requestCycle) {
// Add JSON-encoded string to the response.
requestCycle.getResponse().write("{\"jsonKey\":\"jsonValue\"}");
}
});
}
}
...
NOTE: You DO NOT need to manually write JSON response, there are libraries like http://json-lib.sourceforge.net/ available that will allow you to convert an object hierarchy to something more useful in terms of JSON rather easily. For details, check the documentation at: http://json-lib.sourceforge.net/usage.html.
Another library for JSON processing/generation is jackson.
NOTE Wicket >= 1.5.x: see https://github.com/wicketstuff/core/tree/master/jdk-1.6-parent/autocomplete-tagit-parent
for an example