classroom-service com.xjs 3.3.0 4.0.0 课堂项目-服务模块-视频点播 classroom-service-vod 11 11 com.baomidou mybatis-plus-generator org.apache.velocity velocity-engine-core 2.0 com.qcloud cos_api 5.6.54 joda-time joda-time com.alibaba easyexcel com.qcloud vod_api 2.1.4 org.slf4j slf4j-log4j12