http://stackoverflow.com/questions/3513773/change-mysql-default-character-set-to-utf-8-in-my-cnf
https://dev.mysql.com/doc/refman/5.0/en/charset-configuration.html
编辑 /etc/my.conf文件，增加以下内容
[client] default-character-set=utf8 [mysql] default-character-set=utf8 [mysqld] collation-server = utf8_unicode_ci init-connect='SET NAMES utf8' character-set-server = utf8