Question

我正在使用带有mysql 5的grails。我使用.withTransaction进行服务中的事务管理。在withTransaction块中我使用savePoint（）方法，它导致以下异常。注意：我使用setRollbackOnly（）方法没有任何问题。

2011-06-26 23:02:37,818 [quartzScheduler_Worker-7] ERROR listeners.ExceptionPrinterJobListener  - Exception occured in job: GRAILS_JOBS.com.exmp.bdg.PowerRollupJob
org.quartz.JobExecutionException: Transaction manager does not allow nested transactions [See nested exception: org.springframework.transaction.NestedTransactionNotSupportedException: Transaction manager does not allow nested transactions]
    at org.codehaus.groovy.grails.plugins.quartz.GrailsJobFactory$GrailsTaskClassJob.execute(GrailsJobFactory.java:81)
    at org.quartz.core.JobRunShell.run(JobRunShell.java:199)
    at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:546)
Caused by: org.springframework.transaction.NestedTransactionNotSupportedException: Transaction manager does not allow nested transactions
    at org.springframework.jdbc.datasource.JdbcTransactionObjectSupport.getConnectionHolderForSavepoint(JdbcTransactionObjectSupport.java:151)
    at org.springframework.jdbc.datasource.JdbcTransactionObjectSupport.createSavepoint(JdbcTransactionObjectSupport.java:104)
    at org.springframework.transaction.support.AbstractTransactionStatus.createSavepoint(AbstractTransactionStatus.java:176)
    at org.springframework.transaction.SavepointManager$createSavepoint.call(Unknown Source)
    at com.exmp.bdg.service.PowerRollupService$_doRollup_closure2.doCall(PowerRollupService.groovy:85)

Answer 1

默认情况下，hibernate和MySQL的事务管理器没有启用保存点。

在BootStrap.groovy中添加以下内容：

transactionManager.setNestedTransactionAllowed(true)

然后在交易中，您可以执行以下操作：

Thing.withTransaction { status ->
  //Do some work and a save
  def savePoint = status.createSavepoint()
  //do other work
  if(checkOk)
  {
    //Everything worked so don't need the save point anymore
    status.releaseSavepoint(savePoint)
  }
  else
  {
    //The other work did not work so rollback from it.
    status.rollbackToSavepoint(savePoint)
  }

}

mysql上的Grails事务setSavePoint方法导致异常

1 个答案: