M1 idea链接Mysql数据库时提示Communications link failure，连接数据库的jar包已经和mysql版本号相同，本地navicat连接的话需要选择使用套接字文件才能使用，idea也是类似问题嘛
Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
