Spring MVC controller带参数跳转

/**
     * 去支付界面

     * 
     * @param request
     * @param response
     */
    @RequestMapping(value = "toPay")
    public String toPay(HttpServletRequest request, HttpServletResponse response) {
        Dto inDto = Dtos.newDto(request);
        Map modelMap = (Map)RequestContextUtils.getInputFlashMap(request);
        System.out.println(modelMap);
        return "order/buyer/pay.jsp";
    }

    /**
     * 一个商品产生一个订单

     * 
     * @param request
     *            [地址id+（商品id+数量）]
     * @param response
     * @return
     */
    @RequestMapping(value = "submitOrder")
    public String submitOrder(HttpServletRequest request, HttpServletResponse response, RedirectAttributes redirectAttributes) {
        Dto inDto = Dtos.newDto(request);
        UserInfoVO userInfo = inDto.getUserInfo();
        String user_id_ = null;
        if (AOSUtils.isEmpty(userInfo)) {
            user_id_ = "1";
        } else {// TODO 测试完删掉
            user_id_ = userInfo.getId_();
        }

        Date now = new Date();
        String address_id_ = inDto.getString("address_id_");
        if (AOSUtils.isNotEmpty(address_id_)) {
            Common_addressPO addressPO = addressMapper.selectByKey(address_id_);
            address_id_ = AOSId.uuid();
            addressPO.setId_(address_id_);
            addressPO.setIs_snapnot_(AOSCons.YES);
            addressPO.setCreate_time_(now);
            addressPO.setTs_(now);
            addressMapper.insert(addressPO);
        }

        List ware_orders_ = AOSJson.fromJson(inDto.getString("ware_orders_"));
        List orders = new ArrayList<>();

        redirectAttributes.addFlashAttribute("orders", orders);
        // 转到toPay接口
        return "redirect:toPay.jhtml";
    }