GWT用frame调用JSP

Frame htmlFrame = new Frame("../OurHome/modules/core/mainIndex.jsp?merchantId="+merchantId+"&columnId="+columnId);
            htmlFrame.removeStyleName(htmlFrame.getStyleName());
            DOM.setElementPropertyInt(htmlFrame.getElement(), "frameBorder", 0);
            htmlFrame.setSize("100%", "100%");
            container.add(htmlFrame);