mysql5.7 设置字符编码

【ubuntu】mysql默认的配置文件路径

sudo vim /etc/mysql/mysql.conf.d/mysqld.cnf

修改配置文件， [mysqld] 和 [client] 配置项增加内容

# mysqld 
[mysqld]
character-set-server=utf8
collation-server=utf8_general_ci
init_connect='SET NAMES utf8'

# client
[client]
default-character-set=utf8

重启服务

sudo /etc/init.d/mysql restart

验证结果

mysql> show variables like 'character_set_%';
mysql> show variables like 'collation_%';