[10:26:23.133][DEBUG][org.mybatis.spring.SqlSessionUtils][http-nio-8080-exec-9] Creating a new SqlSession
[10:26:23.180][DEBUG][org.mybatis.spring.SqlSessionUtils][http-nio-8080-exec-9] SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@190a4333] was not registered for synchronization because synchronization is not active
[10:26:24.021][DEBUG][o.m.s.t.SpringManagedTransaction][http-nio-8080-exec-9] JDBC Connection [jdbc:mysql://localhost:3306/mmall_learning?characterEncoding=utf-8, UserName=root@localhost, MySQL Connector Java] will not be managed by Spring
[10:26:24.034][DEBUG][com.mmall.dao.UserMapper.checkUsername][http-nio-8080-exec-9] ==> Preparing: SELECT COUNT (1) FROM mmall_user WHERE username=?
[10:26:24.081][DEBUG][com.mmall.dao.UserMapper.checkUsername][http-nio-8080-exec-9] ==> Parameters: admin(String)
[10:26:24.094][DEBUG][org.mybatis.spring.SqlSessionUtils][http-nio-8080-exec-9] Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@190a4333]