[14:54:11.059][DEBUG][org.mybatis.spring.SqlSessionUtils][http-bio-8088-exec-7] Creating a new SqlSession
[14:54:11.077][DEBUG][org.mybatis.spring.SqlSessionUtils][http-bio-8088-exec-7] SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@1984698] was not registered for synchronization because synchronization is not active
[14:54:11.589][DEBUG][o.m.s.t.SpringManagedTransaction][http-bio-8088-exec-7] JDBC Connection [jdbc:mysql://localhost:3306/gmall?characterEncoding=utf-8, UserName=root@localhost, MySQL-AB JDBC Driver] will not be managed by Spring
[14:54:11.594][DEBUG][com.gmall.dao.UserMapper.checkUsername][http-bio-8088-exec-7] ==> Preparing: SELECT count(1) from mmall_user where username = ?
[14:54:11.619][DEBUG][com.gmall.dao.UserMapper.checkUsername][http-bio-8088-exec-7] ==> Parameters: admin(String)
[14:54:11.638][DEBUG][com.gmall.dao.UserMapper.checkUsername][http-bio-8088-exec-7] <== Total: 1
[14:54:11.644][DEBUG][org.mybatis.spring.SqlSessionUtils][http-bio-8088-exec-7] Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@1984698]