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分享一个关于C3P0的问题
在做j2ee项目是用到链接池,C3P0,服务器用的resin3.0.12,日志记录用的log4j
在操作数据库的时候,数据库操作成功时总是在日志中会添加
[resin-tcp-connection-*:80-21]DEBUG java.lang.Class 2006-03-27 11:22:42,026
parse-group failed, group not exist
[resin-tcp-connection-*:80-21]DEBUG java.lang.Class 2006-03-27 11:22:42,036
parse-order failed, order not exist
[resin-tcp-connection-*:80-21]DEBUG com.mchange.v2.resourcepool.BasicResourcePool 2006-03-27 11:22:42,036
trace com.mchange.v2.resourcepool.BasicResourcePool@317dc9 [managed: 10, unused: 9, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection@1641957)
[resin-tcp-connection-*:80-21]DEBUG com.mchange.v2.resourcepool.BasicResourcePool 2006-03-27 11:22:42,046
trace com.mchange.v2.resourcepool.BasicResourcePool@317dc9 [managed: 10, unused: 9, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection@1641957)
的记录,感觉上是
parse-group failed, group not exist
这一句的问题,请问各位高手到底是怎么回事
在操作数据库的时候,数据库操作成功时总是在日志中会添加
[resin-tcp-connection-*:80-21]DEBUG java.lang.Class 2006-03-27 11:22:42,026
parse-group failed, group not exist
[resin-tcp-connection-*:80-21]DEBUG java.lang.Class 2006-03-27 11:22:42,036
parse-order failed, order not exist
[resin-tcp-connection-*:80-21]DEBUG com.mchange.v2.resourcepool.BasicResourcePool 2006-03-27 11:22:42,036
trace com.mchange.v2.resourcepool.BasicResourcePool@317dc9 [managed: 10, unused: 9, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection@1641957)
[resin-tcp-connection-*:80-21]DEBUG com.mchange.v2.resourcepool.BasicResourcePool 2006-03-27 11:22:42,046
trace com.mchange.v2.resourcepool.BasicResourcePool@317dc9 [managed: 10, unused: 9, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection@1641957)
的记录,感觉上是
parse-group failed, group not exist
这一句的问题,请问各位高手到底是怎么回事
...全文
为了解决众多开发者在使用数据库连接池时只知其然不知其所以然的问题，本课程从零到1的手把手带大家开发一个属于自己的连接池，学习完该课程，你对开发中常用的第三方连接池技术的内部原理就会了然于胸。 &...
