首先,我尝试将MySql连接到我的web项目,但发生了以下异常。Unknown character set index for field '255' received from server 因此,我根据某人的建议在MySql optionsFile中更改了explicit_defaults_for_timestamp,并在服务选项卡中停止了MySql。在那之后,我尝试在服务选项卡或命令行中重启MySql,但不起作用。 错误:Can't connect t
: Deadlock found when trying to get lock; try restarting transaction at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.ex