c3p0连接错误 An attempt by a client to checkout a Connection has timed out.
问题http://chembo.iteye.com/blog/905233 mysql最大连接数设置 http://zhidao.baidu.com/link?url ...
原文：配置c3p0连接池出现错误：java.sql.SQLException: An attempt by a client to checkout a Connection has timed
mysql是 版本的，在学习c p 链接池配置的时候出现了一些问题,记录一下错误.. 刚开始出现的是这个错误 ：java.lang.NoClassDefFoundError: com mchange v ser Indirector 查了一下是缺少了mchange commons java . . .jar这个jar包 但后边出现了：java.sql.SQLException: An attemp ...
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c3p0出现 An attempt by a client to checkout a Connection has timed out
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