SqlSession [.....] was not registered for synchronization because synchronization is not active

1.报错信息

今天运行服务，多线程插入数据库操作的时候（程序运行正常），发现控制台有如下提示信息：

will not be managed by Spring

　报错信息如下：

SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@3650604c] was not registered for synchronization because synchronization is not active
SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@26686f3e] was not registered for synchronization because synchronization is not active
SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@7468ffee] was not registered for synchronization because synchronization is not active
JDBC Connection [HikariProxyConnection@334852565 wrapping org.postgresql.jdbc.PgConnection@1b26fac2] will not be managed by Spring
JDBC Connection [HikariProxyConnection@1897592623 wrapping org.postgresql.jdbc.PgConnection@7980cb0f] will not be managed by Spring

 2.解决办法

 在service方法上加上事务的注解：  @Transactional

再次运行服务，该问题成功解决。