存到mysql数据库乱码

-- 设置数据库字符集
ALTER DATABASE your_database_name CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci;

-- 设置表字符集
ALTER TABLE your_table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

-- 设置列字符集
ALTER TABLE your_table_name MODIFY your_column_name VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

import mysql.connector

config = {
    'user': 'your_username',
    'password': 'your_password',
    'host': 'your_host',
    'database': 'your_database',
    'charset': 'utf8mb4'
}

cnx = mysql.connector.connect(**config)

# 导出数据时指定字符集
mysqldump -u your_username -p your_database --default-character-set=utf8mb4 > your_database.sql

# 导入数据时指定字符集
mysql -u your_username -p your_database --default-character-set=utf8mb4 < your_database.sql