diff --git a/app/api/logic/CartLogic.php b/app/api/logic/CartLogic.php
index f418699..9ea8471 100644
--- a/app/api/logic/CartLogic.php
+++ b/app/api/logic/CartLogic.php
@@ -21,8 +21,8 @@ namespace app\api\logic;
 
 use app\api\model\Cart;
 use app\common\model\Footprint;
-use app\common\server\UrlServer;
-use think\Db;
+use app\common\service\UrlServer;
+use think\facade\Db;
 use think\facade\Hook;
 
 class CartLogic
diff --git a/app/api/model/Cart.php b/app/api/model/Cart.php
new file mode 100644
index 0000000..a0a73b2
--- /dev/null
+++ b/app/api/model/Cart.php
@@ -0,0 +1,37 @@
+<?php
+// +----------------------------------------------------------------------
+// | likeshop开源商城系统
+// +----------------------------------------------------------------------
+// | 欢迎阅读学习系统程序代码，建议反馈是我们前进的动力
+// | gitee下载：https://gitee.com/likeshop_gitee
+// | github下载：https://github.com/likeshop-github
+// | 访问官网：https://www.likeshop.cn
+// | 访问社区：https://home.likeshop.cn
+// | 访问手册：http://doc.likeshop.cn
+// | 微信公众号：likeshop技术社区
+// | likeshop系列产品在gitee、github等公开渠道开源版本可免费商用，未经许可不能去除前后端官方版权标识
+// |  likeshop系列产品收费版本务必购买商业授权，购买去版权授权后，方可去除前后端官方版权标识
+// | 禁止对系统程序代码以任何目的，任何形式的再发布
+// | likeshop团队版权所有并拥有最终解释权
+// +----------------------------------------------------------------------
+// | author: likeshop.cn.team
+// +----------------------------------------------------------------------
+
+namespace app\api\model;
+
+use think\Model;
+
+class Cart extends Model
+{
+    protected $name = 'cart';
+
+    const  IS_SELECTED = 1;//选中
+    const  NO_SELECTED = 0;//未选中
+
+
+    public function goods()
+    {
+        return $this->hasOne('Goods', 'goods_id', 'goods_id');
+    }
+
+}
\ No newline at end of file
diff --git a/app/common/model/Footprint.php b/app/common/model/Footprint.php
new file mode 100644
index 0000000..69168e3
--- /dev/null
+++ b/app/common/model/Footprint.php
@@ -0,0 +1,54 @@
+<?php
+// +----------------------------------------------------------------------
+// | likeshop开源商城系统
+// +----------------------------------------------------------------------
+// | 欢迎阅读学习系统程序代码，建议反馈是我们前进的动力
+// | gitee下载：https://gitee.com/likeshop_gitee
+// | github下载：https://github.com/likeshop-github
+// | 访问官网：https://www.likeshop.cn
+// | 访问社区：https://home.likeshop.cn
+// | 访问手册：http://doc.likeshop.cn
+// | 微信公众号：likeshop技术社区
+// | likeshop系列产品在gitee、github等公开渠道开源版本可免费商用，未经许可不能去除前后端官方版权标识
+// |  likeshop系列产品收费版本务必购买商业授权，购买去版权授权后，方可去除前后端官方版权标识
+// | 禁止对系统程序代码以任何目的，任何形式的再发布
+// | likeshop团队版权所有并拥有最终解释权
+// +----------------------------------------------------------------------
+// | author: likeshop.cn.team
+// +----------------------------------------------------------------------
+namespace app\common\model;
+
+
+use think\Model;
+
+class Footprint extends Model
+{
+    const enter_mall = 1;
+    const browse_goods = 2;
+    const add_cart = 3;
+    const receive_coupon = 4;
+    const place_order = 5;
+
+    public static function getText($value)
+    {
+        $name  = '';
+        switch ($value) {
+            case self::enter_mall:
+                $name = '访问商城';
+                break;
+            case self::browse_goods:
+                $name = '浏览商品';
+                break;
+            case self::add_cart:
+                $name = '加入购物车';
+                break;
+            case self::receive_coupon:
+                $name = '领取优惠券';
+                break;
+            case self::place_order:
+                $name = '下单结算';
+                break;
+        }
+        return $name;
+    }
+}
\ No newline at end of file