关于mybatis测试mysql连接错误

测试mybatis连接数据库时 出现的link failure 网上改timeout方法也试过了 不太行 求各位告知

Error querying database. Cause: 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.

img

img

mysql版本是8.0.23 mysql_connector 的版本是8.0.21

URL后拼接autoReconnect=true driver 版本多少

是不是没有添加mysql的驱动包？加一下试试

端口号错了吧？端口号应该是3306，你改了端口号吗