Java应用程序中的协议违规异常

Question

我们有一个用java开发的应用程序（jdk1.5和DB是oracle 10g）。在某些时候，我们的应用程序正在给出以下错误并终止。我在互联网上搜索过，所有论坛都说“这可能是驱动程序问题（Oracle JDBC驱动程序和数据库之间的兼容性）。为了解决这个问题，我们需要升级或者我们需要替换一些最新版本的jar文件”。但如果我重新启动我的应用程序，它开始工作正常。我很少遇到这个错误。如果它真的是一个驱动程序问题，那么当我重新启动我的应用程序时它不应该工作。

我想明白，在哪种情况下可能发生，因为它不是每次都发生。

任何人都可以帮助我吗？

错误日志从我的应用程序：

SQL Error: 17401, SQLState: null 
Protocol violation 
SQL Error: 17401, SQLState: null 
Protocol violation 
SQL Error: 17401, SQLState: null 
Protocol violation 
Rollback failed 
java.sql.SQLException: Protocol violation 
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBE rror.java:134) 
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBE rror.java:179) 
at oracle.jdbc.dbaccess.DBError.check_error(DBError.j ava:1160) 
at oracle.jdbc.ttc7.Ocommoncall.receive(Ocommoncall.j ava:149) 
at oracle.jdbc.ttc7.TTC7Protocol.rollback(TTC7Protoco l.java:488) 
at oracle.jdbc.driver.OracleConnection.rollback(Oracl eConnection.java:1412) 
at net.sf.hibernate.transaction.JDBCTransaction.rollb ack(JDBCTransaction.java:86) 
at com.azure.spark.database.hibernate.util.HibernateU til.doSessionWork(HibernateUtil.java:90) 
at com.azure.spark.database.hibernate.util.HibernateU til.doSessionWork(HibernateUtil.java:59) 
at com.azure.spark.database.hibernate.util.HibernateU til.get(HibernateUtil.java:569) 
at com.azure.spark.database.hibernate.util.HibernateS ession.get(HibernateSession.java:340) 
at com.azure.spark.taskcontroller.TaskControllerCompo nent.taskCompleted(TaskControllerComponent.java:11 54) 
at com.azure.spark.taskcontroller.TaskControllerCompo nent.onTaskEvent(TaskControllerComponent.java:1111) 
at com.azure.spark.taskcontroller.tasks.AbstractTaskC omponent.run(AbstractTaskComponent.java:354) 
at java.lang.Thread.run(Thread.java:637) 
Error rolling back transaction 
net.sf.hibernate.TransactionException: Rollback failed with SQL exception: 
at net.sf.hibernate.transaction.JDBCTransaction.rollb ack(JDBCTransaction.java:91) 
at com.azure.spark.database.hibernate.util.HibernateU til.doSessionWork(HibernateUtil.java:90) 
at com.azure.spark.database.hibernate.util.HibernateU til.doSessionWork(HibernateUtil.java:59) 
at com.azure.spark.database.hibernate.util.HibernateU til.get(HibernateUtil.java:569) 
at com.azure.spark.database.hibernate.util.HibernateS ession.get(HibernateSession.java:340) 
at com.azure.spark.taskcontroller.TaskControllerCompo nent.taskCompleted(TaskControllerComponent.java:11 54) 
at com.azure.spark.taskcontroller.TaskControllerCompo nent.onTaskEvent(TaskControllerComponent.java:1111) 
at com.azure.spark.taskcontroller.tasks.AbstractTaskC omponent.run(AbstractTaskComponent.java:354) 
at java.lang.Thread.run(Thread.java:637) 
Caused by: java.sql.SQLException: Protocol violation 
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBE rror.java:134) 
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBE rror.java:179) 
at oracle.jdbc.dbaccess.DBError.check_error(DBError.j ava:1160) 
at oracle.jdbc.ttc7.Ocommoncall.receive(Ocommoncall.j ava:149) 
at oracle.jdbc.ttc7.TTC7Protocol.rollback(TTC7Protoco l.java:488) 
at oracle.jdbc.driver.OracleConnection.rollback(Oracl eConnection.java:1412) 
at net.sf.hibernate.transaction.JDBCTransaction.rollb ack(JDBCTransaction.java:86) 
... 8 more 
Error setting task status to completed 
net.sf.hibernate.HibernateException: Error attempting to do session work 
at com.azure.spark.database.hibernate.util.HibernateU til.doSessionWork(HibernateUtil.java:96) 
at com.azure.spark.database.hibernate.util.HibernateU til.doSessionWork(HibernateUtil.java:59) 
at com.azure.spark.database.hibernate.util.HibernateU til.get(HibernateUtil.java:569) 
at com.azure.spark.database.hibernate.util.HibernateS ession.get(HibernateSession.java:340) 
at com.azure.spark.taskcontroller.TaskControllerCompo nent.taskCompleted(TaskControllerComponent.java:11 54) 
at com.azure.spark.taskcontroller.TaskControllerCompo nent.onTaskEvent(TaskControllerComponent.java:1111) 
at com.azure.spark.taskcontroller.tasks.AbstractTaskC omponent.run(AbstractTaskComponent.java:354) 
at java.lang.Thread.run(Thread.java:637) 
Caused by: net.sf.hibernate.exception.GenericJDBCException: could not load: [com.azure.spark.database.hibernate.mappings.refere nce.impl.TaskImpl#43176610] 
at net.sf.hibernate.exception.ErrorCodeConverter.hand ledNonSpecificException(ErrorCodeConverter.java:90) 
at net.sf.hibernate.exception.ErrorCodeConverter.conv ert(ErrorCodeConverter.java:79) 
at net.sf.hibernate.exception.JDBCExceptionHelper.con vert(JDBCExceptionHelper.java:30) 
at net.sf.hibernate.persister.AbstractEntityPersister .convert(AbstractEntityPersister.java:1332) 
at net.sf.hibernate.persister.EntityPersister.load(En tityPersister.java:418) 
at net.sf.hibernate.impl.SessionImpl.doLoad(SessionIm pl.java:2130) 
at net.sf.hibernate.impl.SessionImpl.doLoadByClass(Se ssionImpl.java:2027) 
at net.sf.hibernate.impl.SessionImpl.get(SessionImpl. java:1936) 
at com.azure.spark.database.hibernate.util.HibernateU til$11.doSessionWork(HibernateUtil.java:573) 
at com.azure.spark.database.hibernate.util.HibernateU til.doSessionWork(HibernateUtil.java:80) 
... 7 more 
Caused by: java.sql.SQLException: Protocol violation 
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBE rror.java:134) 
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBE rror.java:179) 
at oracle.jdbc.dbaccess.DBError.check_error(DBError.j ava:1160) 
at oracle.jdbc.ttc7.Oclose.receive(Oclose.java:133) 
at oracle.jdbc.ttc7.TTC7Protocol.close(TTC7Protocol.j ava:684) 
at oracle.jdbc.driver.OracleStatement.close(OracleSta tement.java:700) 
at oracle.jdbc.driver.OraclePreparedStatement.private Close(OraclePreparedStatement.java:489) 
at oracle.jdbc.driver.OraclePreparedStatement.close(O raclePreparedStatement.java:396) 
at net.sf.hibernate.impl.BatcherImpl.closePreparedSta tement(BatcherImpl.java:273) 
at net.sf.hibernate.impl.BatcherImpl.closeStatement(B atcherImpl.java:141) 
at net.sf.hibernate.impl.BatcherImpl.closeQueryStatem ent(BatcherImpl.java:157) 
at net.sf.hibernate.impl.BatcherImpl.closeQueryStatem ent(BatcherImpl.java:104) 
at net.sf.hibernate.loader.Loader.getResultSet(Loader .java:884) 
at net.sf.hibernate.loader.Loader.doQuery(Loader.java :269) 
at net.sf.hibernate.loader.Loader.doQueryAndInitializ eNonLazyCollections(Loader.java:133) 
at net.sf.hibernate.loader.Loader.loadEntity(Loader.j ava:911) 
at net.sf.hibernate.loader.Loader.loadEntity(Loader.j ava:931) 
at net.sf.hibernate.loader.EntityLoader.load(EntityLo ader.java:59) 
at net.sf.hibernate.loader.EntityLoader.load(EntityLo ader.java:51) 
at net.sf.hibernate.persister.EntityPersister.load(En tityPersister.java:415) 
... 12 more 

Answer 1

我会通过升级JDBC驱动程序，寻找你的classpath class12.jar开始。我也发现这个链接可能有帮助：https://forums.oracle.com/message/9710491

Answer 2

我们有同样的问题。 我们用ojdbc8.jar替换了ojdbc7.jar并解决了问题。 我们的休眠版本是4.x.

这是由于数据库中的CLOB字段造成的，其他选项是为数据添加空格或多余的字符。 更多的信息在这里https://community.oracle.com/thread/3647914