目录 (1)引入依赖 (2)yml文件配置 (3)编写Mapper接口,继承BaseMapper (4)添加#MapperSan注解,扫描Mapper文件夹 (5)测试方法 (1)引入依赖 (2)yml文件配置 (3)编写Mapper接口,继承BaseMapper (4)添加#MapperSan注解,扫描Mapper文件夹 (5)测试方法