MySql修改默认字符编码
windows下
在命令行下,查看当前数据库编码show variables like "%char%";
mysql> show variables like "%char%";
+--------------------------+---------------------------------------------------------+
| Variable_name | Value |
+--------------------------+---------------------------------------------------------+
| character_set_client | utf8mb4 |
| character_set_connection | utf8mb4 |
| character_set_database | utf8 |
| character_set_filesystem | binary |
| character_set_results | utf8mb4 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | D:Program FilesMySQLMySQL Server 5.6sharecharsets |
+--------------------------+---------------------------------------------------------+
可以看到,当前数据库客户端默认是utf8编码,服务端是latin1编码
可以通过 set character_set_server=utf8改变服务端编码
mysql> set character_set_server=utf8;
Query OK, 0 rows affected
再次使用show variables like "%char%";查看字符编码
mysql> show variables like "%char%";
+--------------------------+---------------------------------------------------------+
| Variable_name | Value |
+--------------------------+---------------------------------------------------------+
| character_set_client | utf8mb4 |
| character_set_connection | utf8mb4 |
| character_set_database | utf8 |
| character_set_filesystem | binary |
| character_set_results | utf8mb4 |
| character_set_server | utf8 |
| character_set_system | utf8 |
| character_sets_dir | D:Program FilesMySQLMySQL Server 5.6sharecharsets |
+--------------------------+---------------------------------------------------------+
8 rows in set
已经修改过来了,
但是这样的修改,在数据库重新启动之后,数据库编码依然会还原,
此时可以用这个命令
mysql> set global character_set_server=utf8;
Query OK, 0 rows affected
直接修改mysql.ini配置文件来的最稳妥,
找到ProgramDataMySQLmy.ini,这个就是mysql的配置文件
在[client]节点内
添加如下编码信息
[client]
# pipe=
# socket=MYSQL
port=3306
default-character-set=utf8 #utf8mb4
default-collation=utf8_general_ci #utf8mb4
在数据库连接配置的url后边加上characterEnconding=utf8
jdbc:mysql://localhost:3306/xxxx?characterEncoding=utf8&serverTimezone=Asia/Shanghai
即可完美解决。
linux下,同理
使用whereis 或者which 查找mysqld或者mysql的具体安装位置一般配置文件都在/etc目录下。
然后在port下边添加
default-character-set=utf8 #utf8mb4
default-collation=utf8_general_ci #utf8mb4
即可。
然后
serviece mysqld restart
重启,,mysql服务
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