SpringBoot集成MybatisPlus、Swagger、Mysql、Logback实现本地与OSS两种方式的文件上传、下载与预览功能的后端实现，前端只需调用接口即可，可本地postman自测 springboot-file
swagger:https://doc.xiaominfo.com/knife4j/documentation/get_start.html mybatisplus:https://github.com/baomidou/mybatis-plus logback:https://blog.csdn.net/white_ice/article/details/85065219