springBoot项目--平台控制商品订单中各商家打印机打印小票！

@Configuration
public class GoodsOrderPrintScheduling {
    private static final Logger logger = LoggerFactory.getLogger(GoodsOrderPrintScheduling.class);

    @Value("${device.print.url}")
    public String url = "";

    @Autowired
    private IShopOrderService shopOrderService;
    @Autowired
    private IOrderGoodsService orderGoodsService;
    @Autowired
    private IGoodsService goodsService;
    @Autowired
    private IUserPropService userPropService;
    @Autowired
    private IPlatformDevicesService platformDevicesService;
    @Autowired
    private IShopDevicesService shopDevicesService;
    @Autowired
    private IUserService  userService;
/**
     * 待付款订单，打印给商家端
     */
    @Scheduled(cron = "0/5 * * * * ?")
    public  void shopCancelOrder(){
        logger.info("开始打印商家端订单小票");
        QueryWrapper<ShopOrder> queryWrapper = new QueryWrapper<ShopOrder>();
        queryWrapper.eq("status", 2);             //待发货
        queryWrapper.eq("print_status", 0);       //打印状态0：未打印
        List<ShopOrder> shopOrderList = shopOrderService.list(queryWrapper);  //得到订单表


        for (ShopOrder shopOrder : shopOrderList) {// 订单表
            String content ="";
            QueryWrapper<OrderGoods> queryOrderGoodsWrapper = new QueryWrapper<OrderGoods>();
            queryOrderGoodsWrapper.eq("order_id", shopOrder.getId());                   //订单id
            List<OrderInfo> orderInfoList = orderGoodsService.selectShopIdAndOther(shopOrder.getId());  //可以得到商品id  的


            for (int i =0 ; i< orderInfoList.size();) { //货物
                //只打印该商家的订单信息
                //拿到商家id   查看 商家打印机
                int num = 1;
                OrderInfo orderInfo = orderInfoList.get(i);
                Goods goods = goodsService.getById(orderInfo.getGoodsId());
                Long shopId = goods.getShopId(); //取到  订单商店id
                SysUser sysUser = userService.selectByPrimaryKey(shopId);
                int flag = 0;
                if(flag == 0){
                    content = ""+sysUser.getShopName()+"
";
                    content += "序号 名称　　　　　   单价 数量 ";
                    content += "--------------------------------
";
                    flag++;
                }
                for (int j =i+1 ; j< orderInfoList.size(); j++){
                    OrderInfo orderInfo1 = orderInfoList.get(j);
                    Goods goods1 = goodsService.getById(orderInfo1.getGoodsId());
                    Long shopId1 = goods1.getShopId();

                    if(shopId1.equals(shopId)){
                        content += num + " " + cutString(goods1.getName()) + " " + goods1.getPrice()
                                + "  " + orderInfo1.getBuyNum() + "
";
                        num++;
                        i++;
                    }else{
                        continue;
                    }
                }
                content += num + " " + cutString(goods.getName()) + " " + goods.getPrice()
                        + "  " + orderInfo.getBuyNum() + "
";
                num++;
                i++;

                content += "备注：" + shopOrder.getBak() + "
";
                content += "--------------------------------
";
                content += "  合计： " + shopOrder.getPrice() + "元
";
                UserProp prop = userPropService.getById(shopOrder.getAddressId());
                content += "订单编号：" + shopOrder.getOrderNo() + "
";
                content += "送货地点：" + prop.getAddress() + "
";
                content += "收货人：  " + prop.getUserName() + "
";
                content += "联系电话：" + prop.getPhone() + "
";
                content += "下单时间：" + shopOrder.getCreatetime() + "
";

                QueryWrapper<ShopDevices> queryShopDevicesWrapper = new QueryWrapper<ShopDevices>();
                queryShopDevicesWrapper.eq("status", 1);
                queryShopDevicesWrapper.eq("shop_id", shopId);
                List<ShopDevices> shopDevicesList = shopDevicesService.list(queryShopDevicesWrapper);
                for (ShopDevices shopDevices : shopDevicesList) {
                    if (shopDevices.getStatus() == 1) {
                        try {
                            JSONObject jsonObject = PrintDeviceUtil.print(url, shopDevices.getDeviceNo(),
                                    shopDevices.getMkey(), content, shopDevices.getTimes() + "");
                            String responseCode = jsonObject.getString("responseCode");
                            if ("0".equals(responseCode)) {
                                //获取打印设备的订单索引
                                String orderindex = jsonObject.getString("orderindex");
                                JSONObject jsonObject1 = PrintDeviceUtil.printStatus(url, shopDevices.getDeviceNo(),
                                        shopDevices.getMkey(), orderindex);
                                String responseCode1 = jsonObject1.getString("responseCode");
                                if ("0".equals(responseCode1)) {
                                    shopOrder.setPrintStatus(1);
                                    shopOrderService.updateById(shopOrder);
                                    logger.info(content);
                                    logger.info("商家端打印成功");
                                } else {
                                    logger.error("商家端打印失败：" + jsonObject1);
                                }

                            } else {
                                logger.error("商家端打印失败：" + jsonObject);
                            }
                        } catch (IOException e) {
                            logger.error("商家端打印失败:" + e.getMessage());
                        }
                    } else {
                        logger.error("商家端打印失败,打印机未开启!");
                    }
                }
            }
        }
        logger.info("商家端打印结束");
    }
    /**
     * 切割字符串
     *
     * @param str
     * @return
     */
    public static String cutString(String str) {
        String result = str_split(str, 10, "
");
//        System.out.println(result);
        return result;
    }

    public static String[] str_split(String str, int length) {
        int len = str.length();
        String[] arr = new String[(len + length - 1) / length];
        for (int i = 0; i < len; i += length) {

            int n = len - i;

            if (n > length) {
                n = length;
            }
            if(i > 0){
                arr[i / length] = "  " + str.substring(i, i + n);
            }else{
                arr[i / length] =  str.substring(i, i + n);
            }
        }
        while (arr[arr.length - 1].length() < 15){
            arr[arr.length - 1] += " ";
        }
        return arr;
    }

    public static String str_split(String str, int length, CharSequence delimiter) {

        return String.join(delimiter, str_split(str, length));

    }

---

效果如图

---