mysql编码乱码与字符集设置

试试这个吧，导入导出时指定字符集gbk。不过需要重新导出数据。http://bbs.csdn.net/topics/340168356

1，数据库备份命令
mysqldump -uroot -p --default-character-set=gbk dbname > /root/newsdata.sql

2，导入数据库
mysql -uroot -p --default-character-set=gbk
use dbname
source /root/newsdata.sql

修改默认字符集 1、 最简单的修改方法，就是修改mysql的my.ini文件中的字符集键值， 如 default-character-set = utf8 character_set_server = utf8 修改完后，重启mysql的服务，service mysql restart 使用 mysql> SHOW VARIABLES LIKE 'character%';查看，发现数据库编码均已改成utf8 +--------------------------+---------------------------------+ | 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 | D:"mysql-5.0.37"share"charsets" | +--------------------------+---------------------------------+ 
2、还有一种修改字符集的方法，就是使用mysql的命令 mysql> SET character_set_client = utf8 ; mysql> SET character_set_connection = utf8 ; mysql> SET character_set_database = utf8 ; mysql> SET character_set_results = utf8 ; mysql> SET character_set_server = utf8 ; 
mysql> SET collation_connection = utf8 ; mysql> SET collation_database = utf8 ; mysql> SET collation_server = utf8 ; 
3、一般就算设置了表的默认字符集为utf8并且通过UTF-8编码发送查询，你会发现存入数据库的仍然是乱码。问题就出在这个connection连接层上。解决方法是在发送查询前执行一下下面这句： 
SET NAMES 'utf8'; 
它相当于下面的三句指令： SET character_set_client = utf8; SET character_set_results = utf8; SET character_set_connection = utf8; 
**补充：***先把数据导出，把数据库转换完毕后再把数据导回数据库***********

http://blog.csdn.net/ACMAIN_CHM/article/details/4174186