通过show variables like 'character_set%%';查看编码
修改mysql的编码方式可以有以下几个：
1.通过配置文件修改my.ini(windows下)或/etc/my.cnf(linux下)
分别添加如下内容
[mysqld]
character_server_set=utf8
[mysql]
default-character-set=utf8
[mysql.server]
default-character-set=utf8
[mysql_safe]
default-character-set=utf8
[client]
default-character-set=utf8
2.创建数据库时设置编码
create database test character set utf8;
3.创建表时设置编码
create table test(id int primary key)DEFAULT charset=utf8;
4.修改数据库编码
alter database test character set utf8;
5.修改表默认编码
alter table test character set utf8;
6.修改字段编码
alter table test modify col_name varchar(50) CHARACTER SET utf8;
