com.mchange.v2.resourcepool.ResourcePoolException: Attempted to use a closed or broken resource pool
解决这个异常需要修改设置成如下: 30 100 false-acquireRetryAttempts Default:30 Defineshowmanytimesc3p0willtrytoacquireanewConnectionfromthedatabasebeforegivingup.Ifthisvalueislessthanorequaltozero,c3p0willkeeptr