连接数据库:The last packet sent successfully to the server was 0 milliseconds ago问题解决
使用Navicat可以连接上,java代码连接报错在springboot项目启动时报以下错误:com.mysql.cj.jdbc.exceptions.CommunicationsException:CommunicationslinkfailureThelastpacketsentsuccessfullytotheserverwas0milliseco