如何获取wicket图像的url以在打开的图形元标签中使用它

Question

在我的网站，我有图像:

add(new Image("logoImg", new DynamicImageResource() {
private static final long serialVersionUID = 1L;
@Override
protected byte[] getImageData(IResource.Attributes attributes) {
return tournamentDto.getLogo();
}
}));

我如何得到这个图像的生成url使用它在meta:

@Override
public void renderHead(IHeaderResponse response) {
response.render(forMetaTag("og:image", "??"));
super.renderHead(response);
}
public static final String META_TAG = "meta";
public static MetaDataHeaderItem forMetaTag(String name, String content) {
MetaDataHeaderItem headerItem = new MetaDataHeaderItem(META_TAG);
headerItem.addTagAttribute("property", Model.of(name));
headerItem.addTagAttribute("content", Model.of(content));
return headerItem;
}

Answer 1

@Override
public void renderHead(IHeaderResponse response) {
CharSequence imageUrl = urlFor(get("logoImg"));
response.render(forMetaTag("og:image", imageUrl));
super.renderHead(response);
}
// the Component must implement IRequestListener
private CharSequence urlFor(Component component) {
PageAndComponentProvider provider = 
new PageAndComponentProvider(component.getPage(), component);
return urlFor(new ListenerRequestHandler(provider));
}