连接数据库报错
2018-10-19 16:15:54,862 ERROR [com.alibaba.druid.pool.DruidDataSource] - testWhileIdle is true, validationQuery not set
2018-10-19 16:15:54,882 INFO [com.alibaba.druid.pool.DruidDataSource] - {dataSource-1} inited
2018-10-19 16:15:55,132 ERROR [com.alibaba.druid.pool.DruidDataSource] - create connection error
java.sql.SQLException: java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long
