解决：Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure
使用了阿里的数据库连接池Driu报错。解决方法：在配置文件URL末尾加&useSSL=false ...
原文：mysql报错:Caused by: com.mysql.cj.exceptions.CJCommunicationsException: The last packet successfully received from the server was
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: The last packet successfully received from the server was , milliseconds ago. The last packet sent successfully to the server was , milli ...
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