目录
1. 问题所示
编辑数据源的时候,后端出现如下Bug
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.tra
标签:cj,jdbc,string,database,URL,server,mysql,exceptions,com
From: https://blog.csdn.net/weixin_47872288/article/details/142921353