点击页面上的空按钮，后台日志显示如下内容，是什么问题不是很清楚：

[http-bio-80-exec-18] DEBUG org.mybatis.spring.SqlSessionUtils -Creating a new SqlSession
DEBUG org.mybatis.spring.SqlSessionUtils -SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@75cd6ac] was not registered for synchronization because synchronization is not active
DEBUG com.zzzzzxz.server.mapper.CommodityMapper -Cache Hit Ratio [com.xxxxx.server.mapper.CommodityMapper]: 0.9619047619047619
DEBUG org.mybatis.spring.SqlSessionUtils -Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@75cd6ac]