Unexpected error occurred in scheduled task

在程序中程序都能跑起来，甚至都可以返回数据，但是一直报这样的错误，困扰许久，终找到问题

2019-08-23 08:15:00.067 ERROR 10320 --- [pool-1-thread-1] o.s.s.s.TaskUtils$LoggingErrorHandler    : Unexpected error occurred in scheduled task.

org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback; bad SQL grammar [DELETE FROM SPRING_SESSION WHERE EXPIRY_TIME < ?]; nested exception is java.sql.SQLSyntaxErrorException: ORA-00942: 表或视图不存在

	at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.doTranslate(SQLErrorCodeSQLExceptionTranslator.java:234) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:72) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.jdbc.core.JdbcTemplate.translateException(JdbcTemplate.java:1442) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:632) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:861) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:916) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:926) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.session.jdbc.JdbcOperationsSessionRepository.lambda$cleanUpExpiredSessions$7(JdbcOperationsSessionRepository.java:620) ~[spring-session-jdbc-2.1.7.RELEASE.jar:2.1.7.RELEASE]
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140) ~[spring-tx-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.session.jdbc.JdbcOperationsSessionRepository.cleanUpExpiredSessions(JdbcOperationsSessionRepository.java:619) ~[spring-session-jdbc-2.1.7.RELEASE.jar:2.1.7.RELEASE]
	at org.springframework.session.jdbc.config.annotation.web.http.JdbcHttpSessionConfiguration.lambda$configureTasks$0(JdbcHttpSessionConfiguration.java:213) ~[spring-session-jdbc-2.1.7.RELEASE.jar:2.1.7.RELEASE]
	at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:93) [spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_151]
	at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266) [na:1.8.0_151]
	at java.util.concurrent.FutureTask.run(FutureTask.java) [na:1.8.0_151]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_151]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [na:1.8.0_151]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_151]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_151]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_151]
Caused by: java.sql.SQLSyntaxErrorException: ORA-00942: 表或视图不存在

	at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:447) ~[ojdbc6-11.2.0.4-hosted.jar:11.2.0.4.0]
	at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396) ~[ojdbc6-11.2.0.4-hosted.jar:11.2.0.4.0]
	at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:951) ~[ojdbc6-11.2.0.4-hosted.jar:11.2.0.4.0]
	at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:513) ~[ojdbc6-11.2.0.4-hosted.jar:11.2.0.4.0]
	at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:227) ~[ojdbc6-11.2.0.4-hosted.jar:11.2.0.4.0]
	at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531) ~[ojdbc6-11.2.0.4-hosted.jar:11.2.0.4.0]
	at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:208) ~[ojdbc6-11.2.0.4-hosted.jar:11.2.0.4.0]
	at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:1046) ~[ojdbc6-11.2.0.4-hosted.jar:11.2.0.4.0]
	at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1336) ~[ojdbc6-11.2.0.4-hosted.jar:11.2.0.4.0]
	at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3613) ~[ojdbc6-11.2.0.4-hosted.jar:11.2.0.4.0]
	at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3694) ~[ojdbc6-11.2.0.4-hosted.jar:11.2.0.4.0]
	at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeUpdate(OraclePreparedStatementWrapper.java:1354) ~[ojdbc6-11.2.0.4-hosted.jar:11.2.0.4.0]
	at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_executeUpdate(FilterChainImpl.java:3201) ~[druid-1.1.10.jar:1.1.10]
	at com.alibaba.druid.filter.FilterAdapter.preparedStatement_executeUpdate(FilterAdapter.java:1091) ~[druid-1.1.10.jar:1.1.10]
	at com.alibaba.druid.filter.FilterEventAdapter.preparedStatement_executeUpdate(FilterEventAdapter.java:491) ~[druid-1.1.10.jar:1.1.10]
	at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_executeUpdate(FilterChainImpl.java:3199) ~[druid-1.1.10.jar:1.1.10]
	at com.alibaba.druid.proxy.jdbc.PreparedStatementProxyImpl.executeUpdate(PreparedStatementProxyImpl.java:194) ~[druid-1.1.10.jar:1.1.10]
	at com.alibaba.druid.pool.DruidPooledPreparedStatement.executeUpdate(DruidPooledPreparedStatement.java:256) ~[druid-1.1.10.jar:1.1.10]
	at org.springframework.jdbc.core.JdbcTemplate.lambda$update$0(JdbcTemplate.java:866) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:616) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	... 17 common frames omitted

只是pom中依赖有些冲突应该是这样

把这个注释

        
            org.springframework.session
            spring-session-jdbc
        

因为我用的Oracle 所以下面这个也注释或者删除了

       
            mysql
            mysql-connector-java
            runtime
        

注释完程序便不会再报错了，小小心得 希望帮助大家！