解决:Connections could not be acquired from the underlying database! 博客分类: 问题解决 数据库 iBatis og4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.org.quartz.SchedulerConfigException: Failure occured during job recovery. [Se…
数据库无法连接(JDBC) 用户名密码正确,但是一直报错:Connection timed out 后来知道了原因:我用的是BAE提供的云mysql数据库,对访问的IP有限制 ,所以在本机上无法连接. ~~~~(>_<)~~~~ Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.SocketException MESSAGE: java.ne…