Linux下MySQL的编码统一

Linux环境下默认登录mysql之后show variables like

Linux环境下默认登录mysql之后show variables like '%character%', 出现

mysql> show variables like '%character%';

-------------------------- ----------------------------
| Variable_name | Value |

修改/etc/mysql/my.cnf

在[client]下增加default-character-set=utf8
在[mysqld]下增加default-character-set=utf8

同时加上init_connect='SET NAMES utf8' (设定连接mysql数据库时使用utf8编码，以让mysql数据库为utf8运行)

重新启动mysql，执行:sudo /etc/init.d/mysql stop 然后sudo /etc/init.d/mysql start

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 | /usr/share/mysql/charsets/ |
-------------------------- ----------------------------

即使做了以上修改如果直接数据库再创建表，然后存入中文，取出来的会是问号。解决的办法是：

创建数据库的时候指明默认字符集为utf8，如：
create database test default character set utf8;