Ubuntu系统下MySQL的UTF8设置方式

最新推荐文章于 2021-01-20 21:33:17 发布

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本文介绍如何在Ubuntu系统中将MySQL默认的Latin1编码更改为UTF8编码，包括检查当前编码状态、编辑my.cnf文件添加配置项、重启MySQL服务及验证设置是否生效等步骤。

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在Ubuntu中安裝MySQL，MySQL的編碼方式可能不是UTF8編碼，你可以通過如下方式進行設置。

1. 进入MySQL Client, 使用 mysql> show variables like "%character%";show variables like "%collation%"; 查看MySQL編碼方式。

如下所示：

mysql> show variables like "%character%";show variables like "%collation%";

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

| 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/ |

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

8 rows in set (0.00 sec)

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

| Variable_name        | Value           |

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

| collation_connection | utf8_unicode_ci |

| collation_database   | utf8_unicode_ci |

| collation_server     | utf8_unicode_ci |

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

3 rows in set (0.00 sec)

注：如果出現Latin1編碼方式，存储中文信息可能出现乱码情况。

2. 在/etc目录下，找到my.cnf文件，用sudo方式打开，添加如下内容并存储文件。

[mysqld]

init_connect='SET collation_connection = utf8_general_ci'

init_connect='SET NAMES utf8'

character-set-server=utf8

collation-server=utf8_general_ci

skip-character-set-client-handshake

3. 重新启动MySQL服务器, 进入$cd /etc/init.d目录，执行 $mysql.server restart命令。

4. 使用（1）中的命令再次查看MySQL编码方式，如结果如下，证明编码方式修改成功。

mysql> show variables like "%character%";show variables like "%collation%";
+--------------------------+----------------------------+
| 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/ |
+--------------------------+----------------------------+
8 rows in set (0.00 sec)
+----------------------+-----------------+
| Variable_name        | Value           |
+----------------------+-----------------+
| collation_connection | utf8_general_ci |
| collation_database   | utf8_general_ci |
| collation_server     | utf8_general_ci |
+----------------------+-----------------+