大龙博客 2020-01-11 15:34 采纳率: 100%
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在并发下，Spring已经提交事务，并且释放JDBC连接后，新的事务无法查询到之前事务添加的数据

############这里创建了一个事务 35ea154e
2020-01-11 11:13:47.834 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | org.springframework.jdbc.datasource.DataSourceTransactionManager | Creating new transaction with name [com.framework.code.service.report.RPatientService.registerPS]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT
2020-01-11 11:13:47.836 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | org.springframework.jdbc.datasource.DataSourceTransactionManager | Acquired Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@5c225ae5 [wrapping: com.mysql.jdbc.JDBC4Connection@35ea154e]] for JDBC transaction
########切换JDBC事务并且交给Spring管理
2020-01-11 11:13:47.837 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | org.springframework.jdbc.datasource.DataSourceTransactionManager | Switching JDBC Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@5c225ae5 [wrapping: com.mysql.jdbc.JDBC4Connection@35ea154e]] to manual commit
############参与当前的事务 35ea154e
2020-01-11 11:13:47.837 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | org.springframework.jdbc.datasource.DataSourceTransactionManager | Participating in existing transaction
2020-01-11 11:13:47.838 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.doctor.RUserMapper.selectByExample | ooo Using Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@5c225ae5 [wrapping: com.mysql.jdbc.JDBC4Connection@35ea154e]]
#######通过openid查询用户
2020-01-11 11:13:47.838 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.doctor.RUserMapper.selectByExample | ==> Preparing: select 'true' as QUERYID, Id_, VxHeadUrl_, VxNickName_, VxSex_, VxOpenid_, VxProvince_, VxCity_, VxCountry_, Type_, PromotionSource_ from r_user WHERE ( VxOpenid_ = ? )
2020-01-11 11:13:47.839 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.doctor.RUserMapper.selectByExample | ==> Parameters: oMGuv5uRcp03ycIgyjclwpZfr1Eg(String)
##########使用当前事务35ea154e
2020-01-11 11:13:47.842 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.report.RPatientMapper.selectByExample | ooo Using Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@5c225ae5 [wrapping: com.mysql.jdbc.JDBC4Connection@35ea154e]]
#######根据用户Id查询患者信息
2020-01-11 11:13:47.842 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.report.RPatientMapper.selectByExample | ==> Preparing: select 'true' as QUERYID, Id_, RUserId_, RegisterTime_, Name_, Phone_, CardNo_, Age_, Illness_, Irritability_, Inheritance_, IsBindFinished_, Sex_, VxHeadUrl_, PfksShopUserId_ from r_patient WHERE ( RUserId_ = ? )
2020-01-11 11:13:47.843 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.report.RPatientMapper.selectByExample | ==> Parameters: 458690345937539120(Long)
#############这里表示使用AOP调用其他的事务，判断当前有事务，那么默认直接使用当前事务
2020-01-11 11:13:47.844 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | org.springframework.jdbc.datasource.DataSourceTransactionManager | Participating in existing transaction
############继续使用当前事务 35ea154e
2020-01-11 11:13:47.845 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.doctor.RDoctorMapper.selectByExample | ooo Using Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@5c225ae5 [wrapping: com.mysql.jdbc.JDBC4Connection@35ea154e]]
#######通过医生Id查询医生信息
2020-01-11 11:13:47.845 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.doctor.RDoctorMapper.selectByExample | ==> Preparing: select 'true' as QUERYID, Id_, RUserId_, Name_, NamePY_, RHospitalId_, RDepartmentId_, PositionCode_, Phone_, RegisterTime_, CheckStatus_, CheckTime_, CheckUserName_, CheckRemark_, Speciality_, Profile_, VxHeadUrl_, Dtype_, PfksShopUserId_, RDocCareType_ from r_doctor WHERE ( Id_ = ? )
2020-01-11 11:13:47.846 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.doctor.RDoctorMapper.selectByExample | ==> Parameters: 463413442003472478(Long)

#############再次使用AOP调用其他的事务，判断当前有事务，那么默认使用当前事务
2020-01-11 11:13:47.849 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | org.springframework.jdbc.datasource.DataSourceTransactionManager | Participating in existing transaction
#########继续使用当前事务 35ea154e
2020-01-11 11:13:47.851 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.report.RReportMapper.selectByExample | ooo Using Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@5c225ae5 [wrapping: com.mysql.jdbc.JDBC4Connection@35ea154e]]

#########通过医生ID和患者的ID查询医患报道表的信息
2020-01-11 11:13:47.852 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.report.RReportMapper.selectByExample | ==> Preparing: select 'true' as QUERYID, Id_, RPatientId_, RDoctorId_, CreateTime_, IMSessionId_, IllnessName_, RDoctorNameRemark_, RPatientNameRemark_ from r_report WHERE ( RDoctorId_ = ? and RPatientId_ = ? )
2020-01-11 11:13:47.853 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.report.RReportMapper.selectByExample | ==> Parameters: 463413442003472478(Long), 458690345958510641(Long)
##############继续使用当前事务 35ea154e
2020-01-11 11:13:47.854 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.report.RReportMapper.insert | ooo Using Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@5c225ae5 [wrapping: com.mysql.jdbc.JDBC4Connection@35ea154e]]
#############添加医患报道表的一条记录 患者ID=458690345958510641 IMSessionId_是null ，这里添加的数据在下面的事务中查询不到，等我到数据去查询却能查询到结果
2020-01-11 11:13:47.857 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.report.RReportMapper.insert | ==> Preparing: insert into r_report (Id_, RPatientId_, RDoctorId_, CreateTime_, IMSessionId_, IllnessName_, RDoctorNameRemark_, RPatientNameRemark_) values (?, ?, ?, ?, ?, ?, ?, ?)
2020-01-11 11:13:47.858 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.mapper.report.RReportMapper.insert | ==> Parameters: 481834561777569793(Long), 458690345958510641(Long), 463413442003472478(Long), 2020-01-11 11:13:47.853(Timestamp), null, null, null, null

###########这里输出的日志
2020-01-11 11:13:47.861 | myHost | INFO | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | com.framework.code.service.report.RReportService | new report generate:{"id":481834561777569793,"rpatientid":458690345958510641,"rdoctorid":463413442003472478,"createtime":1578712427853,"imsessionid":null,"illnessname":null,"rdoctornameremark":null,"rpatientnameremark":null}

########提交启动的事务
2020-01-11 11:13:47.861 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | org.springframework.jdbc.datasource.DataSourceTransactionManager | Initiating transaction commit

#########这里我们新创建一个新的事务 7fb1091a
2020-01-11 11:13:47.861 | myHost | DEBUG | pool-1-thread-7 | [] | org.springframework.jdbc.datasource.DataSourceTransactionManager | Creating new transaction with name [com.framework.code.service.report.RPatientService.registerEvent]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT

########之前线程的事务进行提交
2020-01-11 11:13:47.861 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | org.springframework.jdbc.datasource.DataSourceTransactionManager | Committing JDBC transaction on Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@5c225ae5 [wrapping: com.mysql.jdbc.JDBC4Connection@35ea154e]]

################这里是我们新的事务 7fb1091a
2020-01-11 11:13:47.862 | myHost | DEBUG | pool-1-thread-7 | [] | org.springframework.jdbc.datasource.DataSourceTransactionManager | Acquired Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@75935acf [wrapping: com.mysql.jdbc.JDBC4Connection@7fb1091a]] for JDBC transaction
2020-01-11 11:13:47.862 | myHost | DEBUG | pool-1-thread-7 | [] | org.springframework.jdbc.datasource.DataSourceTransactionManager | Switching JDBC Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@75935acf [wrapping: com.mysql.jdbc.JDBC4Connection@7fb1091a]] to manual commit

######这里是日志输出
2020-01-11 11:13:47.862 | myHost | INFO | pool-1-thread-7 | [] | com.framework.code.service.report.RPatientService | [PatientEvent]:{"rUserId":458690345937539120,"rDoctorId":463413442003472478}

##########使用当前事务
2020-01-11 11:13:47.862 | myHost | DEBUG | pool-1-thread-7 | [] | com.framework.code.mapper.doctor.RUserMapper.selectByPrimaryKey | ooo Using Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@75935acf [wrapping: com.mysql.jdbc.JDBC4Connection@7fb1091a]]

##########通过用户Id查询用户信息
2020-01-11 11:13:47.862 | myHost | DEBUG | pool-1-thread-7 | [] | com.framework.code.mapper.doctor.RUserMapper.selectByPrimaryKey | ==> Preparing: select Id_, VxHeadUrl_, VxNickName_, VxSex_, VxOpenid_, VxProvince_, VxCity_, VxCountry_, Type_, PromotionSource_ from r_user where Id_ = ?
2020-01-11 11:13:47.863 | myHost | DEBUG | pool-1-thread-7 | [] | com.framework.code.mapper.doctor.RUserMapper.selectByPrimaryKey | ==> Parameters: 458690345937539120(Long)

######之前的线程释放JDBC连接
2020-01-11 11:13:47.867 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | org.springframework.jdbc.datasource.DataSourceTransactionManager | Releasing JDBC Connection
[com.mchange.v2.c3p0.impl.NewProxyConnection@5c225ae5 [wrapping: com.mysql.jdbc.JDBC4Connection@35ea154e]] after transaction
2020-01-11 11:13:47.867 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | org.springframework.jdbc.datasource.DataSourceUtils | Returning JDBC Connection to DataSource
2020-01-11 11:13:47.867 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | org.springframework.web.servlet.DispatcherServlet | Completed 200 OK

2020-01-11 11:13:47.867 | myHost | INFO | pool-1-thread-8 | [] | com.framework.web.eventbus.LogSubscribe | [LogSubscribe]:{"threadName":"http-nio-8081-exec-10","className":"com.framework.code.controller.webchat.WeChartController","methodName":"receiveEvent","argsMap":{"request":"ServletRequest","response":"ServletResponse"},"argsJson":"{\"request\":\"ServletRequest\",\"response\":\"ServletResponse\"}","happenTime":1578712427867,"throwable":null,"throwableString":null,"traceId":"436ed24f998d411ab5150b1258b22cd0","result":null,"useTime":33}

2020-01-11 11:13:47.867 | myHost | DEBUG | http-nio-8081-exec-10 | [436ed24f998d411ab5150b1258b22cd0] | org.springframework.session.web.http.SessionRepositoryFilter.SESSION_LOGGER | No session found by id: Caching result for getSession(false) for this HttpServletRequest.

########使用当前事务 7fb1091a
2020-01-11 11:13:47.867 | myHost | DEBUG | pool-1-thread-7 | [] | com.framework.code.mapper.report.RPatientMapper.selectByExample | ooo Using Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@75935acf [wrapping: com.mysql.jdbc.JDBC4Connection@7fb1091a]]

###通过用户ID查询患者信息
2020-01-11 11:13:47.867 | myHost | DEBUG | pool-1-thread-7 | [] | com.framework.code.mapper.report.RPatientMapper.selectByExample | ==> Preparing: select 'true' as QUERYID, Id_, RUserId_, RegisterTime_, Name_, Phone_, CardNo_, Age_, Illness_, Irritability_, Inheritance_, IsBindFinished_, Sex_, VxHeadUrl_, PfksShopUserId_ from r_patient WHERE ( RUserId_ = ? )
2020-01-11 11:13:47.869 | myHost | DEBUG | pool-1-thread-7 | [] | com.framework.code.mapper.report.RPatientMapper.selectByExample | ==> Parameters: 458690345937539120(Long)

##########使用AOP调用其他的事务，判断当前有事务，那么默认使用当前事务 7fb1091a
2020-01-11 11:13:47.870 | myHost | DEBUG | pool-1-thread-7 | [] | org.springframework.jdbc.datasource.DataSourceTransactionManager | Participating in existing transaction
2020-01-11 11:13:47.876 | myHost | DEBUG | pool-1-thread-7 | [] | com.framework.code.mapper.report.RPatientMapper.selectByPrimaryKey | ooo Using Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@75935acf [wrapping: com.mysql.jdbc.JDBC4Connection@7fb1091a]]

######通过用户ID查询患者信息
2020-01-11 11:13:47.876 | myHost | DEBUG | pool-1-thread-7 | [] | com.framework.code.mapper.report.RPatientMapper.selectByPrimaryKey | ==> Preparing: select Id_, RUserId_, RegisterTime_, Name_, Phone_, CardNo_, Age_, Illness_, Irritability_, Inheritance_, IsBindFinished_, Sex_, VxHeadUrl_, PfksShopUserId_ from r_patient where Id_ = ?
2020-01-11 11:13:47.876 | myHost | DEBUG | pool-1-thread-7 | [] | com.framework.code.mapper.report.RPatientMapper.selectByPrimaryKey | ==> Parameters: 458690345958510641(Long)

##########使用当前事务 7fb1091a
2020-01-11 11:13:47.878 | myHost | DEBUG | pool-1-thread-7 | [] | com.framework.code.mapper.report.RReportMapper.selectByExample | ooo Using Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@75935acf [wrapping: com.mysql.jdbc.JDBC4Connection@7fb1091a]]
##########通过患者ID查询患者报道信息表 458690345958510641
2020-01-11 11:13:47.878 | myHost | DEBUG | pool-1-thread-7 | [] | com.framework.code.mapper.report.RReportMapper.selectByExample | ==> Preparing: select 'true' as QUERYID, Id_, RPatientId_, RDoctorId_, CreateTime_, IMSessionId_, IllnessName_, RDoctorNameRemark_, RPatientNameRemark_ from r_report WHERE ( RPatientId_ = ? and IMSessionId_ is null )
2020-01-11 11:13:47.878 | myHost | DEBUG | pool-1-thread-7 | [] | com.framework.code.mapper.report.RReportMapper.selectByExample | ==> Parameters: 458690345958510641(Long)

########输出查询结果
2020-01-11 11:13:47.879 | myHost | INFO | pool-1-thread-7 | [] | com.framework.code.service.report.RReportService | 查询隐患报道关系.数量只能有一条:0记录信息=[]

这里查询到结果是0个，说明之前的数据并没有落入DB中？？？这是因为spring提交事务后落入DB还有时间嘛，操作了这样的时间差。

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1条回答 默认 最新

  • a嘻嘻哈哈哈 2020-01-11 16:54
    关注

    检查事务隔离级别的设置。
    在REPEATABLE-READ情况下
    如果第二个事务如果在第一个事务commit前开启，那读到的是原先的数据
    在Read-Committed的情况下
    当第一个事务commit后，第二个事务会读到提交后的数据
    可以看看第二个事务的开启是在第一个事务提交前还是提交后

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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