测试是用Mysql自带的 mysql 作为客户端工具。

测试第一步：

my.ini 中加入：

[mysqld]character-set-server=utf8mb4

mysql中查看字符集：

mysql> SHOW VARIABLES LIKE 'character%';+--------------------------+----------------------------------------------------------+

| Variable_name | Value |

+--------------------------+----------------------------------------------------------+

| character_set_client | gbk |

| character_set_connection | gbk |

| character_set_database | utf8mb4 |

| character_set_filesystem | binary |

| character_set_results | gbk |

| character_set_server | utf8mb4 |

| character_set_system | utf8 |

| character_sets_dir | E:\Developer\DBServer\Mysql\mysql-5.6.24\share\charsets\ |

+--------------------------+----------------------------------------------------------+

8 rows in set (0.00 sec)

服务端

红色三个项目都是客户端默认编码 gbk。

蓝色两个项目表示服务端的编码已经修改为了utf8mb4。

character_set_filesystem、character_set_system 默认即可，是不需要修改的。

测试第二步：

my.ini 中继续加入：

[client]#客户端编码方式，最好和服务端保存一致

default-character-set=utf8mb4

mysql中查看字符集：

mysql> SHOW VARIABLES LIKE 'character%';+--------------------------+----------------------------------------------------------+

| Variable_name | Value |

+--------------------------+----------------------------------------------------------+

|character_set_client | utf8mb4 |

| character_set_connection | utf8mb4 |

| character_set_database | utf8mb4 |

| character_set_filesystem | binary |

| character_set_results | utf8mb4 |

| character_set_server | utf8mb4 |

| character_set_system | utf8 |

| character_sets_dir | E:\Developer\DBServer\Mysql\mysql-5.6.24\share\charsets\ |

+--------------------------+----------------------------------------------------------+

8 rows in set (0.00 sec)

红色三项都随着设置修改为了 utf8mb4。