修改mysql的配置文件,使数据库与服务器操作系统的字符集设置一致。
vi /etc/my.cnf 设置(如果没有则要就新建1个)
当然,修改后,要重启数据库。
再次用mysql -u root -p命令进入数据库系统,用SHOW VARIABLES LIKE 'character_set_%';命令查看到如下内容:
+--------------------------+-----------------------------------------------------------------------+
| Variable_name | Value |
+--------------------------+-----------------------------------------------------------------------+
| character_set_client | latin1 |
| character_set_connection | latin1 |
| character_set_database | utf8 |
| character_set_filesystem | binary |
| character_set_results | latin1 |
| character_set_server | utf8 |
| character_set_system | utf8 |
| character_sets_dir | /usr/local/mysql-5.1.20-beta-linux-i686-glibc23/share/mysql/charsets/ |
+--------------------------+-----------------------------------------------------------------------+
发现关键项目已经用了utf8,但这样还不够,还要保证客户端也是用utf8的字符集来操作的。
登录的时候,要用以下命令:mysql --default-character-set=utf8 -u root -p
再次用SHOW VARIABLES LIKE 'character_set_%';命令查看,结果变成了:
+--------------------------+-----------------------------------------------------------------------+
| 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/local/mysql-5.1.20-beta-linux-i686-glibc23/share/mysql/charsets/ |
+--------------------------+-----------------------------------------------------------------------+
这样才能保证客户端所发命令都是基于utf8格式的,比如说建立数据库和表,默认就会以utf8编码,而无须再次指定。
说明:如果在修改编码之前已经建好数据库,需要删掉旧库,重新建立数据库。