Cause: java.sql.SQLException: 关闭的连接]; nested exception is com.ibatis.common.jdbc.exception.NestedSQLException
错误如下：
  org.springframework.jdbc.UncategorizedSQLException: (SqlMapClient operation): encountered SQLException [  
--- The error occurred in com/unc/dao/ibatis/maps/SmscList.xml.  
--- The error occurred while applying a parameter map.  
--- Check the selectSmscListClassName-InlineParameterMap.  
--- Check the statement (query failed).  
--- Cause: java.sql.SQLException: 关闭的连接]; nested exception is com.ibatis.common.jdbc.exception.NestedSQLException:  
--- The error occurred in com/unc/dao/ibatis/maps/SmscList.xml.  
--- The error occurred while applying a parameter map.  
--- Check the selectSmscListClassName-InlineParameterMap.  
--- Check the statement (query failed).  
--- Cause: java.sql.SQLException: 关闭的连接
com.ibatis.common.jdbc.exception.NestedSQLException:  
--- The error occurred in com/unc/dao/ibatis/maps/SmscList.xml.  
--- The error occurred while applying a parameter map.  
--- Check the selectSmscListClassName-InlineParameterMap.  
--- Check the statement (query failed).  
--- Cause: java.sql.SQLException: 关闭的连接
at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:185)
at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForList(GeneralStatement.java:123)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:615)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:589)
at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:118)
at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForList(SqlMapClientImpl.java:95)
at org.springframework.orm.ibatis.SqlMapClientTemplate$3.doInSqlMapClient(SqlMapClientTemplate.java:245)
at org.springframework.orm.ibatis.SqlMapClientTemplate.execute(SqlMapClientTemplate.java:165)
at org.springframework.orm.ibatis.SqlMapClientTemplate.executeWithListResult(SqlMapClientTemplate.java:204)
at org.springframework.orm.ibatis.SqlMapClientTemplate.queryForList(SqlMapClientTemplate.java:243)
at com.unc.dao.ibatis.SqlMapSmscListDAO.selectSmscListClassName(SqlMapSmscListDAO.java:54)
at com.unc.services.imp.ListServiceImpl.selectSmscListClassName(ListServiceImpl.java:78)
at com.unc.timing.TimingTask.getSendMessage(TimingTask.java:98)
at sun.reflect.GeneratedMethodAccessor41.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:222)
at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:165)
at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:66)
at org.quartz.core.JobRunShell.run(JobRunShell.java:191)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:516)
Caused by: java.sql.SQLException: 关闭的连接
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:111)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:145)
at oracle.jdbc.driver.Data