discard long time none received connection
自从一次整理了pom文件后，服务器的log4j2，就一直不停的给我发error邮件 一开始我就一直觉得奇怪，如果是真正的异常，那么应该还有后续的堆栈打印才对，正常的log4j的error日志邮件如下 后来在网上找到一篇博客，才恍然大悟，是druid的版本问题，从最新的1.1.23 回退到 1.1.22可解决。 博客原文链接
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- 1. druid discard long time none received connection问题解析
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