git地址：
https://gitee.com/liuqing123123/warehouse-management-system.git
三、引入mybatis-puls
<!--mybatis-plus-->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.4.1</version>
</dependency>
四、用sql 重写 接口
Controller
service
mapper
mapperXml
