帆软版本： 10.0.12已尝试替换更新驱动包：mysql-connector-java-5.1.49-bin.jar ， 但报错依旧， 报错信息如下：2021-08-23 18:04:43严重:18:04:43 TestConnection-45-worker-1 ERROR 错误代码:31300012 创建数据连接失败: Communications link failureThe last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.2021-08-23 18:04:43严重:18:04:43 TestConnection-45-worker-1 ERROR 错误代码：11300009 数据库连接失败: Communications link failureThe last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.2021-08-23 18:04:43严重:18:04:43 SwingWorker-pool-7-thread-2 ERROR com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failureThe last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
