SimplePortletHandlerAdapter.java 文件源码

public ModelAndView handleResource(ResourceRequest request, ResourceResponse response, Object handler)
        throws Exception {

    if (handler instanceof ResourceServingPortlet) {
        ((ResourceServingPortlet) handler).serveResource(request, response);
    }
    else {
        // roughly equivalent to Portlet 2.0 GenericPortlet
        PortletUtils.serveResource(request, response, this.portletContext);
    }
    return null;
}