【From：】http://www.2cto.com/database/201311/255324.html
一、登录MySQL查看用SHOW VARIABLES LIKE ‘character%’;下字符集，显示如下：
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+--------------------------+----------------------------+| 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/ |+--------------------------+----------------------------+ |
character_set_database和character_set_server的默认字符集还是latin1。
二、最简单的完美修改方法，修改mysql的 /etc/my.cnf 文件中的字符集键值（注意配置的字段细节）：
- 1、在[mysqld]字段里加入character-set-server=utf8，如下：
- [mysqld]
- port = 3306
- socket = /var/lib/mysql/mysql.sock
- character-set-server=utf8
修改完成后，sudo systemctl restart mysqld重启mysql服务就生效。
使用SHOW VARIABLES LIKE ‘character%’;查看，发现数据库编码全已改成utf8。
- +--------------------------+----------------------------+
- | 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/ |
- +--------------------------+----------------------------+
