Can not read response from server. Expected to read 4 bytes, read 0 bytes be

Posted 2022-12-16 G_whang

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springboot项目启动时连接mysql时提示，Can not read response from server. Expected to read 4 bytes, read 0 bytes be……
原因：mysql服务可能down了
解决办法：
连接xshell 查看mysql 进程 ps aux|grep mysql
然后重启mysql

 service mysqld restart

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