mac下修改mysql的数据集 utf8->utf8mb4

在/etc下新建一个文件my.cnf，将下述内容粘贴进去，重启mysql生效

[client]
default-character-set=utf8mb4
 
[mysqld]
character-set-server = utf8mb4
collation-server = utf8mb4_unicode_ci
init_connect='SET NAMES utf8mb4'
skip-character-set-client-handshake = true
 
[mysql]
default-character-set = utf8mb4