docker 容器启动mysql 数据库客户端，字符集乱码-CFANZ编程社区

问题：用docker 容器启动mysql 导入数据, 字符集是乱码

查看MYSQL数据库服务器和数据库字符集

mysql> show variables like '%character%';
+--------------------------+----------------------------------+
| Variable_name            | Value                            |
+--------------------------+----------------------------------+
| character_set_client     | latin1                           |
| character_set_connection | latin1                           |
| character_set_database   | utf8mb3                          |
| character_set_filesystem | binary                           |
| character_set_results    | latin1                           |
| character_set_server     | utf8mb3                          |
| character_set_system     | utf8mb3                          |
| character_sets_dir       | /usr/local/mysql/share/charsets/ |
+--------------------------+----------------------------------+
8 rows in set (0.02 sec)



# 需求是把 下面的四个字段  都显示为  utf8mb3   才可以导入数据
+--------------------------+----------------------------------+
| Variable_name            | Value                            |
+--------------------------+----------------------------------+
| character_set_client     | latin1                           |
| character_set_connection | latin1                           |
| character_set_database   | utf8mb3                          |                          |
| character_set_results    | latin1                           |



退出mysql
mysql> exit
Bye
root@f2fe58b9f195:/#

设置mysql 容器客户端字符集

root@f2fe58b9f195:/# cat > /etc/mysql/conf.d/mysql.cnf <<EOF
[mysqld]
symbolic-links=0
max_connections=3000
max_user_connections=500
wait_timeout=200
character-set-server=utf8
collation-server=utf8_general_ci
[mysql]
default-character-set=utf8
[client]
default-character-set=utf8
EOF

退出mysql 容器

root@f2fe58b9f195:/# exit
exit
[root@node1 ~]#

重新进入mysql 容器

docker exec -it mysql-svc-container bash

再次查看字符集

#连接远程 mysql

root@f2fe58b9f195:/#   mysql -u root -p'Passw0rd' -h 101.42.101.140 -P 3306

mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 12
Server version: 8.0.28 MySQL Community Server - GPL

Copyright (c) 2000, 2021, Oracle and/or its affiliates.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> 



# 查看字符集 
mysql> show variables like '%character%';
+--------------------------+----------------------------------+
| Variable_name            | Value                            |
+--------------------------+----------------------------------+
| character_set_client     | utf8mb3                          |
| character_set_connection | utf8mb3                          |
| character_set_database   | utf8mb3                          |
| character_set_filesystem | binary                           |
| character_set_results    | utf8mb3                          |
| character_set_server     | utf8mb3                          |
| character_set_system     | utf8mb3                          |
| character_sets_dir       | /usr/local/mysql/share/charsets/ |
+--------------------------+----------------------------------+
8 rows in set (0.01 sec)

mysql>

再次执行导入数据，数据就是正常的了

#复制宿主机 初始化数据到容器
#将 sql 文件拷贝到 mysql 客户端容器/tmp 目录下 

docker cp  /data/init_sql/init.sql mysql-svc-container:/tmp/init.sql


#导入命令
mysql -u 远程数据库用户名 -p'远程数据库密码'  -h 远程数据库主机 -P 远程数据库端口  远程数据库名称 < /tmp/init.sql


释义：
小p 指定的是 -p'数据库密码'

大P 指定的是 -P 远程数据库端口