CentOS 7查看並修改Mysql的字符編碼

1.首先，通過以下命令進入mysql

[root@VM_168_4_centos ~]# cd /
[root@VM_168_4_centos /]# cd usr/etc
[root@VM_168_4_centos etc]# mysql

2.然後查看mysql的字符集編碼

mysql>show variables like 'character_set%';
+--------------------------+----------------------------+  
| Variable_name            | Value                      |  
+--------------------------+----------------------------+  
| character_set_client     | latin1                     |  
| character_set_connection | latin1                     |  
| character_set_database   | latin1                     |  
| character_set_filesystem | binary                     |  
| character_set_results    | latin1                     |  
| character_set_server     | latin1                     |  
| character_set_system     | utf8                       |  
| character_sets_dir       | /usr/share/mysql/charsets/ |  
+--------------------------+----------------------------+  

3.然後進入etc下的my.cnf文件

cd etc
vim my.cnf

找到如下代碼

    [mysqld_safe]
    log-error=/var/log/mysqld.log
    pid-file=/var/run/mysqld/mysqld.pid

4.修改文件，在 [mysqld_safe] 的上面粘貼如下三行,然後保存

    character-set-server=utf8
    [mysql]
    default-character-set=utf8

5.重啓mysql服務：service mysqld restart

再次查看編碼

+--------------------------+----------------------------+
| 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       | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+