Communications link failure Last packet sent to the server was 0 ms ago数据库没有启动重启数据库即可解决版权声明：本文为Sharpen__原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接和本声明。原文链接：https://blog.csdn.net/Sharpen__/article/details/107484888