active for ... milliseconds and has been removed automaticaly 的解决办法
由于需要调用mysql store procedure来统计数据，比较费时，超过5分钟还没有结束的时候，抛出错误如下，意思是proxool连接池把超过309594 milliseconds的连接给关了：
<bean id="dataSourceProduct" class="org.logicalcobwebs.proxool.ProxoolDataSource"><property name="driver"><value>${proxool.driver}</value></property><property name="driverUrl"><value>${proxool.url.product}</value></property><property name="user"><value>${proxool.username.product}</value></property><property name="password"><value>${proxool.password.product}</value></property><property name="alias"><value>${proxool.alias.product}</value></property><property name="maximumActiveTime"><value>${proxool.maximumActiveTime}</value></property><property name="simultaneousBuildThrottle"><value>${proxool.simultaneousBuildThrottle}</value></property><property name="prototypeCount"><value>${proxool.prototypeCount}</value></property><property name="maximumConnectionCount"><value>${proxool.maximumConnectionCount}</value></property><property name="minimumConnectionCount"><value>${proxool.minimumConnectionCount}</value></property><property name="houseKeepingTestSql"><value>${proxool.houseKeepingTestSql}</value></property><property name="trace"><value>${proxool.trace}</value></property><property name="verbose"><value>${proxool.verbose}</value></property></bean>