com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)(提供解决思路)
报错内容Thelastpacketsuccessfullyreceivedfromtheserverwas398,094millisecondsago.Thelastpacketsentsuccessfullytotheserverwas398,104millisecondsago.atcom.mysql.cj.jdbc.exceptions.SQLError.createCommunicatio