Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure;;The last packet sent successfully to the server ...
转载连接 解决办法,成功 :https: www.cnblogs.com longsanshi p .html top 参考链接 : https: stackoverflow.com questions solving a communications link failure with jdbc and mysql这个没用上,但是写得很好 最终解决办法是用下面的方法成功连接mysql,导出数据库 ...
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Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure;;The last packet sent successfully to the server ...
Communications link failure解决方法,我借鉴的别人的,延长MySQL的连接时间 #查询连接的时间 show global variables like 'wait_timeout'; #修改连接的时间set global wait_timeout=604800; ...
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server ...
1.我使用MySql数据库8.0版本,然后驱动改成了 jdbc.driver=com.mysql.cj.jdbc.Driver jdbc.url=jdbc:mysql://127.0.0.1:3306/seezoon-framework?useUnicode=true&useSSL ...
问题1: 连接本地mysql,报如下错误 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from ...
在链接数据库的时候,报错如下: The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 上网 ...
not received any packets from the server. at sun.reflec ...
在这里是因为在配置文件连接数据库的url不正确 仔细查看一下,是否跟数据库一样 ...