测试controler
@Controllerpublic class DemoController2 { @Autowired private DemoService demoService; /** * * @param response * @param resquest */ @RequestMapping(value = "/demoController2/selectList.do") public void selectList(HttpServletResponse response,HttpServletRequest resquest){ Customer customer=new Customer(); customer.setApplicationNO("D00021807040005"); customer.setId_card("11111"); System.out.println("更新数据开始"); demoService.update(customer); System.out.println("更新数据结束:"+customer.getId_card()); } } 情况1
@Override public void update(Customer customer) { // TODO Auto-generated method stub customerDao.update(customer); int i=7/0; } 结果：抛异常，事务由回滚2018-07-16 10:42:27,628 [http-bio-8080-exec-5] DEBUG [com.xx.core.dao.pushBusiness.CustomerDao.update] - ==> Preparing: update ap_customer SET id_card=? where applicationNO=? 2018-07-16 10:42:27,629 [http-bio-8080-exec-5] DEBUG [com.xx.core.dao.pushBusiness.CustomerDao.update] - ==> Parameters: 11111(String), D00021807040005(String) 2018-07-16 10:42:27,632 [http-bio-8080-exec-5] DEBUG [com.xx.core.dao.pushBusiness.CustomerDao.update] - <== Updates: 1 2018-07-16 10:42:27,632 [http-bio-8080-exec-5] DEBUG [org.mybatis.spring.SqlSessionUtils] - Releasing transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@4198553e] 2018-07-16 10:42:27,632 [http-bio-8080-exec-5] DEBUG [org.mybatis.spring.SqlSessionUtils] - Transaction synchronization deregistering SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@4198553e] 2018-07-16 10:42:27,632 [http-bio-8080-exec-5] DEBUG [org.mybatis.spring.SqlSessionUtils] - Transaction synchronization closing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@4198553e] 2018-07-16 10:42:27,632 [http-bio-8080-exec-5] DEBUG [org.springframework.jdbc.datasource.DataSourceTransactionManager] - Initiating transaction rollback 2018-07-16 10:42:27,633 [http-bio-8080-exec-5] DEBUG [org.springframework.jdbc.datasource.DataSourceTransactionManager] - Rolling back JDBC transaction on Connection [jdbc:mysql://127.0.0.1:3306/test_zhou?characterEncoding=UTF-8, UserName=root@localhost, MySQL-AB JDBC Driver]
情况2
@Override public void update(Customer customer) throws Exception{//受检异常（非运行异常）必须抛出 // TODO Auto-generated method stub try{ customerDao.update(customer); int i = 4/0;//人为产生异常 }catch(Exception e){ throw new Exception ("人为产生异常");//抛出Exception异常 } } 结果：抛出异常，事务没有回滚
2018-07-16 10:59:53,616 [http-bio-8080-exec-6] DEBUG [com.xx.core.dao.pushBusiness.CustomerDao.update] - ==> Preparing: update ap_customer SET id_card=? where applicationNO=? 2018-07-16 10:59:53,616 [http-bio-8080-exec-6] DEBUG [com.xx.core.dao.pushBusiness.CustomerDao.update] - ==> Parameters: 11111(String), D00021807040005(String) 2018-07-16 10:59:53,617 [http-bio-8080-exec-6] DEBUG [com.xx.core.dao.pushBusiness.CustomerDao.update] - <== Updates: 1 2018-07-16 10:59:53,617 [http-bio-8080-exec-6] DEBUG [org.mybatis.spring.SqlSessionUtils] - Releasing transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@4c87b6f2] 2018-07-16 10:59:53,617 [http-bio-8080-exec-6] DEBUG [org.mybatis.spring.SqlSessionUtils] - Transaction synchronization committing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@4c87b6f2] 2018-07-16 10:59:53,618 [http-bio-8080-exec-6] DEBUG [org.mybatis.spring.SqlSessionUtils] - Transaction synchronization deregistering SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@4c87b6f2] 2018-07-16 10:59:53,618 [http-bio-8080-exec-6] DEBUG [org.mybatis.spring.SqlSessionUtils] - Transaction synchronization closing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@4c87b6f2] 2018-07-16 10:59:53,618 [http-bio-8080-exec-6] DEBUG [org.springframework.jdbc.datasource.DataSourceTransactionManager] - Initiating transaction commit
情况3
@Override public void update(Customer customer) throws RuntimeException{//运行异常（非受检异常）可以不抛出 // TODO Auto-generated method stub try{ customerDao.update(customer); int i = 4/0;//人为产生异常 }catch(Exception e){ throw new RuntimeException ("人为产生异常");//抛出Exception异常 } } 结果：异常抛出，事务回滚
2018-07-16 11:04:37,304 [http-bio-8080-exec-4] DEBUG [com.xx.core.dao.pushBusiness.CustomerDao.update] - ==> Preparing: update ap_customer SET id_card=? where applicationNO=? 2018-07-16 11:04:37,305 [http-bio-8080-exec-4] DEBUG [com.xx.core.dao.pushBusiness.CustomerDao.update] - ==> Parameters: 11111(String), D00021807040005(String) 2018-07-16 11:04:37,306 [http-bio-8080-exec-4] DEBUG [com.xx.core.dao.pushBusiness.CustomerDao.update] - <== Updates: 1 2018-07-16 11:04:37,307 [http-bio-8080-exec-4] DEBUG [org.mybatis.spring.SqlSessionUtils] - Releasing transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@d520a8d] 2018-07-16 11:04:37,307 [http-bio-8080-exec-4] DEBUG [org.mybatis.spring.SqlSessionUtils] - Transaction synchronization deregistering SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@d520a8d] 2018-07-16 11:04:37,307 [http-bio-8080-exec-4] DEBUG [org.mybatis.spring.SqlSessionUtils] - Transaction synchronization closing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@d520a8d] 2018-07-16 11:04:37,307 [http-bio-8080-exec-4] DEBUG [org.springframework.jdbc.datasource.DataSourceTransactionManager] - Initiating transaction rollback 2018-07-16 11:04:37,308 [http-bio-8080-exec-4] DEBUG [org.springframework.jdbc.datasource.DataSourceTransactionManager] - Rolling back JDBC transaction on Connection [jdbc:mysql://127.0.0.1:3306/test_zhou?characterEncoding=UTF-8, UserName=root@localhost, MySQL-AB JDBC Driver]
情况4
@Transactional(rollbackFor=Exception.class) public void update(Customer customer) throws Exception{//受检异常（非运行异常）必须抛出 // TODO Auto-generated method stub try{ customerDao.update(customer); int i = 4/0;//人为产生异常 }catch(Exception e){ throw new Exception ("人为产生异常");//抛出Exception异常 } } 结果：抛出异常，事务回滚 2018-07-16 11:21:36,618 [http-bio-8080-exec-2] DEBUG [com.xx.core.dao.pushBusiness.CustomerDao.update] - ==> Preparing: update ap_customer SET id_card=? where applicationNO=? 2018-07-16 11:21:36,635 [http-bio-8080-exec-2] DEBUG [com.xx.core.dao.pushBusiness.CustomerDao.update] - ==> Parameters: 11111(String), D00021807040005(String) 2018-07-16 11:21:36,636 [http-bio-8080-exec-2] DEBUG [com.xx.core.dao.pushBusiness.CustomerDao.update] - <== Updates: 1 2018-07-16 11:21:36,636 [http-bio-8080-exec-2] DEBUG [org.mybatis.spring.SqlSessionUtils] - Releasing transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@5ab43a31] 2018-07-16 11:21:36,637 [http-bio-8080-exec-2] DEBUG [org.mybatis.spring.SqlSessionUtils] - Transaction synchronization deregistering SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@5ab43a31] 2018-07-16 11:21:36,637 [http-bio-8080-exec-2] DEBUG [org.mybatis.spring.SqlSessionUtils] - Transaction synchronization closing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@5ab43a31] 2018-07-16 11:21:36,637 [http-bio-8080-exec-2] DEBUG [org.springframework.jdbc.datasource.DataSourceTransactionManager] - Initiating transaction rollback 2018-07-16 11:21:36,637 [http-bio-8080-exec-2] DEBUG [org.springframework.jdbc.datasource.DataSourceTransactionManager] - Rolling back JDBC transaction on Connection [jdbc:mysql://127.0.0.1:3306/test_zhou?characterEncoding=UTF-8, UserName=root@localhost, MySQL-AB JDBC Driver] 2018-07-16 11:21:36,647 [http-bio-8080-exec-2] DEBUG [org.springframework.jdbc.datasource.DataSourceTransactionManager] - Releasing JDBC Connection [jdbc:mysql://127.0.0.1:3306/test_zhou?characterEncoding=UTF-8, UserName=root@localhost, MySQL-AB JDBC Driver] after transaction 2018-07-16 11:21:36,647 [http-bio-8080-exec-2] DEBUG [org.springframework.jdbc.datasource.DataSourceUtils] -
事务回滚情况：
1运行时异常（untimeException 或其子类例的实例）
2unchecked exceptions异常
不回滚情况
1Checked exceptions异常（情况2）
对不回滚的处理方案：
1：手动指定回滚
2 ：使用了Spring的rollback-for配置。
参考
https://blog.csdn.net/lovejavaydj/article/details/7635848