2021-07-06 解决异常：“The last packet sent successfully to the server was 0 milliseconds ago. ”

url: jdbc:mysql://192.168.124.123:3306/xxgcxy?useUnicode=true&characterEncoding=utf-8&serverTimezone=UTC&zeroDateTimeBehavior=CONVERT_TO_NULL

改为

url: jdbc:mysql://192.168.124.123:3306/xxgcxy?useSSL=false&useUnicode=true&characterEncoding=utf-8&useLegacyDatetimeCode=false&serverTimezone=Asia/Shanghai

将问号后面改为

?useSSL=false&useUnicode=true&characterEncoding=utf-8&useLegacyDatetimeCode=false&serverTimezone=Asia/Shanghai

，具体原因不知道为啥，问题解决了就行。

来源：两种解决异常：“The last packet sent successfully to the server was 0 milliseconds ago. ”的办法_云枫的专栏-优快云博客评论第一的老哥给的解决方法。