Error

: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot get a connection, pool error Timeout waiting for idle object ### The error may exist in file [/webroot/ion.or.kr/html/WEB-INF/classes/com/knowck/web/ion/sqlxml/program.xml] ### The error may involve com.knowck.web.ion.dao.ProgramDao.getByNo ### The error occurred while executing a query ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot get a connection, pool error Timeout waiting for idle object