异常一 : The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
异常二 : ClassNoDefException : ServletContext.
出现原因 : mysql服务没有开启
解决办法: 开启mysql服务
异常一 : The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
异常二 : ClassNoDefException : ServletContext.
出现原因 : mysql服务没有开启
解决办法: 开启mysql服务