spring boot整合spring batch总是报错：无法连续访问此事务处理

1. PreparedStatementCallback; SQL [INSERT into BATCH_JOB_INSTANCE(JOB_INSTANCE_ID, JOB_NAME, JOB_KEY, VERSION) values (?, ?, ?, ?)]; ORA-08177: 无法连续访问此事务处理 
2. 解决办法：oracle事务级别从SERIALIZABLE调整为ISOLATION_READ_COMMITTED。

   @Bean
   public JobRepository jobRepository(DataSource dataSource, PlatformTransactionManager transactionManager) throws Exception {
       JobRepositoryFactoryBean jobRepositoryFactoryBean = new JobRepositoryFactoryBean();
       jobRepositoryFactoryBean.setDataSource(dataSource);
       jobRepositoryFactoryBean.setTransactionManager(transactionManager);
       jobRepositoryFactoryBean.setIsolationLevelForCreate("ISOLATION_READ_COMMITTED");
       jobRepositoryFactoryBean.setDatabaseType("oracle");
       return jobRepositoryFactoryBean.getObject();
   }