基于Java的钢管租赁系统课设毕设均可，截图展示（附项目源码下载链接，含sql文件）

基于Java的钢管租赁系统

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项目基本信息
项目：基于Java的钢管租赁系统
开发运行环境
JDK：1.8.0_144
IDE：Intellij IDEA 2019.3.3
数据库：MySQL Community Server 8.0.15
服务器：Tomcat 7
浏览器：Google Chrome 81
启动步骤

1. 将项目克隆到本地

2. idea打开项目
   
   
   
   
   
   
   
   部分代码展示：
   /**

   • @param page

   • @param limit

   • @param orderSearch 查询参数

   • @return
     */
     @RequestMapping(“/list-order.do”)
     @ResponseBody
     public String doListOrders(Integer page, Integer limit, OrderSearch orderSearch) {
     // Log.log(“AdminController 类 doListOrders 方法”, “获取订单信息”);
     // Log.log(orderSearch.toString());
     // Log.log(“page”, page);
     // Log.log(“limit”, limit);
     // Log.log(“待查询的材料”, order.toString());

     // 按照创建时间降序排序
     List allOrders = orderService.selectFuzzyOrderByDateDesc(orderSearch);

     // Log.log(“查询到的订单”);
     // for (Order o : allOrders) {
     // Log.log(o.toString());
     // }
     // Log.logLn();

     int fromIndex = (page - 1) * limit;
     int toIndex = Math.min(fromIndex + limit, allOrders.size());

     List currentPageOrders = allOrders.subList(fromIndex, toIndex);

     // Log.log(“第” + page + “页的” + limit + “个订单是”);
     // for (Order o : currentPageOrders) {
     // Log.log(o.toString());
     // }
     // Log.logLn();

     JSONObject jsonObject = new JSONObject();
     jsonObject.put(“code”, 0);
     jsonObject.put(“msg”, “订单信息”);
     jsonObject.put(“data”, currentPageOrders);
     jsonObject.put(“count”, allOrders.size());

     // Log.log(“返回给前端的数据是”, jsonObject.toString());

     return jsonObject.toString();
     }

   @RequestMapping(“/add-order.do”)
   @ResponseBody
   public Message doAddOrder(Order order) {
   // Log.log(“OrderController.doAddOrder”);
   // Log.log(order.toString());

    Message message = new Message();
   
    List<OrderDetail> orderDetails = order.getOrderDetails();
    // Log.log(orderDetails.toString());
   
    if (order.getType().equals("租")) {
        // 减少库存量
        message = materialService.reduceStocks(orderDetails);
        // Log.log(message.toString());
    } else if (order.getType().equals("还")) {
        message = materialService.increaseStocks(orderDetails);
    }
   
    if (message.getMsgCode() == Message.SF_FAILURE) {
        return message;
    }
   
    // 成功减少库存量，接下来保存订单信息
    int count = orderService.insert(order);
    if (count == 0) {
        message.setMsg("订单添加失败！");
        if (order.getType().equals("租")) {
            materialService.increaseStocks(orderDetails);
        } else if (order.getType().equals("还")) {
            materialService.reduceStocks(orderDetails);
        }
        // Log.log(message.toString());
        return message;
    }
   
    // 添加订单明细到数据库
    Message orderDetailMessage = orderDetailService.insert(orderDetails);
    if (orderDetailMessage.getMsgCode() == Message.SF_FAILURE) {
        return orderDetailMessage;
    }
   
    message.setMsg("订单添加成功！");
    message.setMsgCode(Message.SF_SUCCESS);
    // Log.log("返回值", message.toString());
    return message;
   

   }

   @RequestMapping(“/delete.do”)
   @ResponseBody
   public Message doDeleteOrder(Order order) {
   // Log.log(“OrderController.doDeleteOrder”);
   // Log.log(order.toString());

    Message message = new Message();
    int count = 0;
   
    if (order == null) {
        message.setMsg("参数错误！");
        return message;
    }
   
    // 更新库存
    if (order.getType().equals("租")) {
        message = materialService.increaseStocks(order.getOrderDetails());
    } else if (order.getType().equals("还")) {
        message.setMsgCode(Message.SF_SUCCESS);
        message.setMsg("库存更新成功");
    }
    if (message.getMsgCode() == Message.SF_FAILURE) {
        return message;
    }
   
    count = orderDetailService.deleteLogicallyByOrderID(order.getId());
    if (count < order.getOrderDetails().size()) {
        message.setMsg("订单明细删除失败！");
        return message;
    }
   
    count = orderService.delete(order);
    if (count == 1) {
        message.setMsgCode(Message.SF_SUCCESS);
        message.setMsg("订单删除成功！");
    } else {
        message.setMsg("订单删除失败！");
    }
   
    return message;
   

   }

}

https://download.csdn.net/download/weixin_43474701/88630917