第一层因素:
mysql的自身的设置
mysql有六处使用了字符集。分别为：client
、connection、database、results、server
、system。
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
| latin1 |
| character_set_system
| utf8 |
| character_sets_dir
| /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
mysql -uroot -p--default_character_set=gbk; (影响数据的输入和输出)
mysql> show variables like ‘character%‘;
+--------------------------+----------------------------+
| Variable_name
| Value
|
+--------------------------+----------------------------+
| character_set_client
| gbk |
| character_set_connection | gbk
|
| character_set_database
| utf8 |
| character_set_filesystem | binary
|
| character_set_results
| gbk |
| character_set_server
| latin1 |
| character_set_system
| utf8 |
| character_sets_dir
| /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
8 rows in set (0.00 sec)
insertinto worker(id,name,sex,birthday,salary,entry_date,resume) values(3,‘赵六‘,0,‘1985-09-21‘,7000,‘2012-08-24‘,‘一个小小牛‘);
====>错误现象
mysql>insert into worker(id,name,sex,birthday,salary,entry_date,resume) values(3,‘赵六‘,0,‘1985-09-21‘,7000,‘2012-08-24‘,‘一个小小牛‘);
ERROR 1366 (HY000): Incorrect string value:‘\x80\xE4\xB8\xAA\xE5\xB0...‘ for column ‘resume‘ at row 1
mysql>
====>结论:
让你的client
server
连接 ,都必须设置成一样 utf8gbk
第二层因素
操作系统语言环境的设置
a)操作系统的整体的语言环境
[[email protected]~]$ cat /etc/sysconfig/i18n
LANG="zh_CN.UTF-8"
[[email protected]~]$
b)当前用户的语言环境
linux的操作系统是基于多用户的操作系统
[[email protected]~]$ env | grep LANG*
LANG=zh_CN.UTF-8
[[email protected]~]$
=====>当前用户的LANG设置能屏蔽操作系统语言环境设置
实现:改动当前用户的语言环境
[[email protected]~]$ env | grep LANG
LANG=C
[[email protected]~]$
insertinto worker(id,name,sex,birthday,salary,entry_date,resume) values(3,‘赵六六‘,0,‘1985-09-21‘,7000,‘2012-08-24‘,‘一个小牛‘);
第三层因素
你的应用软件的本身
文件的
存储问题....
文件存储
最经常使用有2种方式:utf8
code936
==== gbk转宽字节的函数....widewinskd函数
gbk转成宽字节(Unicode2)
备份mysql数据库
$ mysqldump -uroot -p mydb2 >
2.sql
//恢复msql数据库
$ mysqldump -uroot -p mydb2 < 2.sql