mysql5.7设置默认编码

1、通过 show variables like '%char%';查看MySQL字符集情况

mysql> show variables like '%char%';+--------------------------+----------------------------+| Variable_name            | Value                      |+--------------------------+----------------------------+| character_set_client     | utf8                       || character_set_connection | utf8                       || character_set_database   | latin1                     || character_set_filesystem | binary                     || character_set_results    | utf8                       || character_set_server     | latin1                     || character_set_system     | utf8                       || character_sets_dir       | /usr/share/mysql/charsets/ |+--------------------------+----------------------------+

2、修改mysql配置文件

#备份配置文件sudo cp  /etc/mysql/mysql.conf.d/mysqld.cnf /etc/mysql/mysql.conf.d/mysqld.cnf_2sudo vim  /etc/mysql/mysql.conf.d/mysqld.cnf
# 修改处1：添加以下2行[client]default-character-set=utf8
[mysqld]
# 修改处2：添加以下3行default-storage-engine=INNODBcharacter-set-server=utf8collation-server=utf8_general_ci

3、重启mysql
service mysql restart

4、查看字符集
mysql -uroot -pmysql> show variables like "%char%";+--------------------------+----------------------------+| Variable_name            | Value                      |+--------------------------+----------------------------+| character_set_client     | utf8                       || character_set_connection | utf8                       || character_set_database   | utf8                       || character_set_filesystem | binary                     || character_set_results    | utf8                       || character_set_server     | utf8                       || character_set_system     | utf8                       || character_sets_dir       | /usr/share/mysql/charsets/ |+--------------------------+----------------------------+