仅 READ_COMMITTED 和 SERIALIZABLE 是有效的事务处理级

约定不等于承诺〃 2021-12-12 03:37 294阅读 0赞

org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is java.sql.SQLException: 仅 READ_COMMITTED 和 SERIALIZABLE 是有效的事务处理级
    
        at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:305) ~[spring-jdbc-5.0.5.RELEASE.jar:5.0.5.RELEASE]
    
        at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:378) ~[spring-tx-5.0.5.RELEASE.jar:5.0.5.RELEASE]
    
        at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:474) ~[spring-tx-5.0.5.RELEASE.jar:5.0.5.RELEASE]
    
        at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:289) ~[spring-tx-5.0.5.RELEASE.jar:5.0.5.RELEASE]
    
        at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) ~[spring-tx-5.0.5.RELEASE.jar:5.0.5.RELEASE]
    
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.5.RELEASE.jar:5.0.5.RELEASE]
    
        at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-5.0.5.RELEASE.jar:5.0.5.RELEASE]
    
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.5.RELEASE.jar:5.0.5.RELEASE]
    
        at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689) ~[spring-aop-5.0.5.RELEASE.jar:5.0.5.RELEASE]

环境：

macOS Mojave + springboot2.X + Oracle

操作：

开启了spring事务，隔离级别设置为

@Transactional(rollbackFor = Throwable.class,isolation = Isolation.READ\_UNCOMMITTED)

调用方法时报错如上的错误

原因：

如异常所说，Oracle  仅 READ\_COMMITTED 和 SERIALIZABLE 是有效的事务处理级

Spring支持的事务隔离级别，是将该隔离级别通过数据库驱动传递给数据库，使用数据库的隔离级别实现的。

学习Spring的事务还需要了解数据库支持的情况，不然只知概念不知用法。