能具体描述一下是什么场景吗?我现在是使用 版本: mysql-connector-->5.1.34 druid -->1.0.6
配置如下:
validationQuery=SELECT 'x'
testWhileIdle=true
testOnBorrow=false
testOnReturn=false
timeBetweenEvictionRunsMillis=25000
minEvictableIdleTimeMillis=300000
removeAbandoned=true
removeAbandonedTimeout=18000
logAbandoned=true
hibernate.show_sql=false
collectionInit=set names utf8mb4
但是偶尔会出现下面的错,感觉像是服务端断开连接,但是我testwhileIdle配置了true,看源码获取连接的时候是会去做ping操作检测连接的.
... 57 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet successfully received from the server was 300,001 milliseconds ago. The last packet sent successfully to the server was 300,000 m illiseconds ago.