CentOS 7下MySQL5.7的修改字符集编码为UTF8（解决中文乱码问题）

【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）：

 

[plain] view plain copy

1. 在[mysqld]字段里加入character_set_server=utf8，如下：  

2. [mysqld]  

3. port = 3306  

4. socket = /var/lib/mysql/mysql.sock  

 character_set_server=utf8

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/ |