JAVA高级面试进阶训练营视频教程

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【From：】http://www.2cto.com/database/201311/255324.html

 

一、登录MySQL查看用SHOW VARIABLES LIKE ‘character%’;下字符集，显示如下：

 

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+ --------------------------+----------------------------+ | Variable_name | Value | + --------------------------+----------------------------+ | character_set_client | utf8 | | character_set_connection | utf8 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | utf8 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | + --------------------------+----------------------------+

 

character_set_database和character_set_server的默认字符集还是latin1。

 

二、最简单的完美修改方法，修改mysql的 /etc/my.cnf 文件中的字符集键值（注意配置的字段细节）：

 

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1. 1、在[mysqld]字段里加入character-set-server=utf8，如下：  
2.    
3. [mysqld]  
4. port = 3306  
5. socket = /var/lib/mysql/mysql.sock  
6. character-set-server=utf8  
7.    

修改完成后，sudo systemctl restart mysqld重启mysql服务就生效。

 

使用SHOW VARIABLES LIKE ‘character%’;查看，发现 数据库编码全已改成utf8。

 

 

[sql]  view plain  copy

 

1. +--------------------------+----------------------------+  
2. | Variable_name | Value |  
3. +--------------------------+----------------------------+  
4. | character_set_client | utf8 |  
5. | character_set_connection | utf8 |  
6. | character_set_database | utf8 |  
7. | character_set_filesystem | binary |  
8. | character_set_results | utf8 |  
9. | character_set_server | utf8 |  
10. | character_set_system | utf8 |  
11. | character_sets_dir | /usr/share/mysql/charsets/ |  
12. +--------------------------+----------------------------+