查看mysql数据库编码：
show variables like 'character%';
mysql> show variables like 'character%'; +--------------------------+-------------------------------------------------+ | Variable_name | Value | +--------------------------+-------------------------------------------------+ | character_set_client | gbk | | character_set_connection | gbk | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | gbk | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | E: Developmysql-5.7.15-winx64sharecharsets | +--------------------------+-------------------------------------------------+ 8 rows in set, 1 warning (0.00 sec) mysql>
可以看出database和server都采用了latin1编码，不支持中文，我们需要把它修改为utf-8。
除了这两个，其它的如下：
| 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 | E: Developmysql-5.7.15-winx64sharecharsets
在mysql安装目录下，将 my-default.ini 复制一分保存为 my.ini
做如下修改：
主要看红色框里的内容：
[mysqld] character-set-server=utf8 collation-server=utf8_general_ci [mysql] default-character-set = utf8 [mysql.server] default-character-set = utf8 [mysqld_safe] default-character-set = utf8 [client] default-character-set = utf8
结果，查看编码：
mysql> show variables like 'character%'; +--------------------------+-------------------------------------------------+ | 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 | E: Developmysql-5.7.15-winx64sharecharsets | +--------------------------+-------------------------------------------------+ 8 rows in set, 1 warning (0.00 sec) mysql>
数据库实例编码设置：
mysql> show create database test; +----------+-----------------------------------------------------------------+ | Database | Create Database | +----------+-----------------------------------------------------------------+ | test | CREATE DATABASE `test` /*!40100 DEFAULT CHARACTER SET latin1 */ | +----------+-----------------------------------------------------------------+ 1 row in set (0.00 sec) mysql> alter database test default character set utf8; Query OK, 1 row affected (0.00 sec) mysql> show create database test; +----------+---------------------------------------------------------------+ | Database | Create Database | +----------+---------------------------------------------------------------+ | test | CREATE DATABASE `test` /*!40100 DEFAULT CHARACTER SET utf8 */ | +----------+---------------------------------------------------------------+ 1 row in set (0.00 sec) mysql>
参考：http://blog.csdn.net/u013474104/article/details/52486880