处理阿里druid超过空闲等待时间,断开连接问题#2
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阿里他们给数据库设置的数据库空闲等待时间是60秒，mysql数据库到了空闲等待时间将关闭空闲的连接，以提升数据库服务器的处理能力。MySQL的默认空闲等待时间是8小时，就是「wait_timeout」的配置值。如果数据库主动关闭了空闲的连接，而连接池并不知道，还在使用这个连接，就会产生异常。
解决方法：
一：更新最新的版本
二：运行参数设置 -Ddruid.mysql.usePingMethod=false