1.登录mysql，查看数据库的整体编码
mysql> show variables like 'character%';
+--------------------------+----------------------------+
| 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/ |
+--------------------------+----------------------------+其中
character_set_database | latin1
character_set_server | latin1都为latin1编码，所以需要把这两个字符编码都修改为utf8
2.修改数据库编码
打开/etc/my.cnf文件