更新数据库结构，重写接口

src/main/java/cn/mafangui/hotel/service/OrderService.java

@@ -17,4 +17,6 @@ public interface OrderService {
     List<Order> selectByUserId(int userId);
 
     List<Order> selectAll();
+
+    List<Order> userSelectAll(int userId);
 }

src/main/java/cn/mafangui/hotel/service/impl/OrderServiceImpl.java

@@ -43,4 +43,9 @@ public class OrderServiceImpl implements OrderService {
     public List<Order> selectAll() {
         return orderMapper.selectAll();
     }
+
+    @Override
+    public List<Order> userSelectAll(int userId) {
+        return orderMapper.userSelectAll(userId);
+    }
 }