springboot项目，本地运行正常，打jar包部署后日志显示事务未同步，详细日志如下。

Question

Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@6af00152]
Creating a new SqlSession
SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@69dbeb99] was not registered for synchronization because synchronization is not active
JDBC Connection [HikariProxyConnection@55287137 wrapping com.mysql.cj.jdbc.ConnectionImpl@5b53f0ff] will not be managed by Spring
==>  Preparing: select province,count(orgId) orgNumber from t_org group by province 
==> Parameters: 
<==    Columns: province, orgNumber
<==        Row: 510000, 3
<==      Total: 1
Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@69dbeb99]
Creating a new SqlSession
SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@6809a204] was not registered for synchronization because synchronization is not active
JDBC Connection [HikariProxyConnection@1589124031 wrapping com.mysql.cj.jdbc.ConnectionImpl@5b53f0ff] will not be managed by Spring

Answer 1

原因是service 没有加@transactional 注解

未加注解的情况下，出现异常的时候spring将不会回滚事物 

一般情况下  只有对数据有增删改操作才具体加在具体的类方法上