CDBUtils 1.0 was released on 2020-02-29.
This is the first public release of CDBUtils.this is Database connections pool extension from DBUtils.
test_on_borrow parameter for PooledDB： check availability of the connection fetched
from the pool(True = check，False = default = never check).test_idle parameter for PooledDB：Check connection availability on idle(是否检查空闲连接)
(True = default = check，False = never check).validation_sql parameter for PooledDB： the sql for validate the connection 测试连接的sql 。
(default is 'SELECT 1 FROM DUAL')idle_check_time parameter for PooledDB： the seconds for Check and remove the idle
connection interval,it will be start one Thread to check the idle connection in the pool,
whenever 'idleCheckTime' greater than 0 and 'testIdle' is True,default is 60 seconds.
(检查并移除连接池中空闲连接的时间间隔 小于等于0时不检查,默认60s)validate_timeout parameter for PooledDB： the max seconds to execute the validation Sql,default is 1.
if 'validateTimeOut' Less than 1, it will Wait until to return the result(执行校验sql语句的最大超时时间秒默认1s)max_wait_time parameter for PooledDB：the max wait time for fetch one connection from the pool,
if ‘maxWaitTime’ greater than 0 ,it will be start a lock for the function "connection " with in the time,
and throw one exception when the timeout 在连接池中获取一个有效连接的最大超时时间 默认5s