mysql 连接问题
com.mysql.jdbc.exceptions.jdbc4.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.
我看了下出现这个问题很多都是| wait_timeout | 28800 |
但我是刚操作好数据库,连接时,控制台就报这个异常
求大神解决一下