再将struts1改为struts2的时候，这个为题该怎么办呢

再将struts1改为struts2的时候，这个为题该怎么处理呢

Java code

public ActionForward browseIndexMer(ActionMapping mapping, ActionForm form,            HttpServletRequest request, HttpServletResponse response) {        List cateList = null;        List merList = null;        List smerList = null;        MerService service = new MerServiceImpl();        int paseSize = 3; //一页包含3条记录        int pageNo = 1; //当前为第一页        try{            cateList = service.browseCategory();            merList = service.browseMer(paseSize,pageNo,0,false);            smerList = service.browseMer(paseSize,pageNo,0,true);            if (cateList!=null)request.setAttribute("cateList", cateList);                                    if (merList!=null)request.setAttribute("merList", merList);            if (smerList!=null)request.setAttribute("smerList", smerList);        }catch(Exception ex){            logger.info("在执行MerAction类中的browseIndexMer方法时出错：\n");            ex.printStackTrace();        }        return mapping.findForward("index");    }