连接django和mysql时出现OperationalError

Question

我在用django连接mysql数据库时遇到问题。我已经尝试在Internet上找到解决方案，但没有任何帮助。当我更改“ setting.py”文件中的代码，然后在控制台中输入“ python manage.py migration”时：

(blog) PS C:\Users\kacpe\Dev\blog\blog\blog> python manage.py migrate                                                   Traceback (most recent call last):
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\db\backends\base\base.py", line 217, in ensure_connection
    self.connect()
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\db\backends\base\base.py", line 195, in connect
    self.connection = self.get_new_connection(conn_params)
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\db\backends\mysql\base.py", line 227, in get_new_connection
    return Database.connect(**conn_params)
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\MySQLdb\__init__.py", line 84, in Connect
    return Connection(*args, **kwargs)
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\MySQLdb\connections.py", line 166, in __init__
    super(Connection, self).__init__(*args, **kwargs2)
MySQLdb._exceptions.OperationalError: (2059, <NULL>)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "manage.py", line 21, in <module>
    main()
  File "manage.py", line 17, in main
    execute_from_command_line(sys.argv)
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\core\management\__init__.py", line 375, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\core\management\base.py", line 323, in run_from_argv
    self.execute(*args, **cmd_options)
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\core\management\base.py", line 361, in execute
    self.check()
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\core\management\base.py", line 387, in check
    all_issues = self._run_checks(
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\core\management\commands\migrate.py", line 64, in _run_checks
    issues = run_checks(tags=[Tags.database])
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\core\checks\registry.py", line 72, in run_checks
    new_errors = check(app_configs=app_configs)
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\core\checks\database.py", line 10, in check_database_backends
    issues.extend(conn.validation.check(**kwargs))
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\db\backends\mysql\validation.py", line 9, in check
    issues.extend(self._check_sql_mode(**kwargs))
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\db\backends\mysql\validation.py", line 13, in _check_sql_mode
    with self.connection.cursor() as cursor:
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\db\backends\base\base.py", line 256, in cursor
    return self._cursor()
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\db\backends\base\base.py", line 233, in _cursor
    self.ensure_connection()
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\db\backends\base\base.py", line 217, in ensure_connection
    self.connect()
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\db\utils.py", line 89, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\db\backends\base\base.py", line 217, in ensure_connection
    self.connect()
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\db\backends\base\base.py", line 195, in connect
    self.connection = self.get_new_connection(conn_params)
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\django\db\backends\mysql\base.py", line 227, in get_new_connection
    return Database.connect(**conn_params)
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\MySQLdb\__init__.py", line 84, in Connect
    return Connection(*args, **kwargs)
  File "C:\Users\kacpe\Dev\blog\blog\lib\site-packages\MySQLdb\connections.py", line 166, in __init__
    super(Connection, self).__init__(*args, **kwargs2)
django.db.utils.OperationalError: (2059, <NULL>)

这令人沮丧，因为我无法修复它，而我才刚刚开始学习Django。预先感谢您的帮助。

我的'setting.py'数据库代码：

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'blog',
        'USER': 'Shiraga',
        'PASSWORD': 'MYPASSWORD',
        'HOST': '127.0.0.1',
        'PORT': '3306',
    }
}

Answer 1

检查数据库的权限，登录到MySQL并运行

GRANT ALL ON *.* TO 'root'@'localhost';

FLUSH PRIVILEGES;

请发布您的Django settings.py包含的内容。

Answer 2

Okey，经过长时间的战斗，我能够解决此问题。我通过从Python 3.8切换到3.7.5解决了它。在3.8之前的版本中，通过“ pip install mysqlclient”安装mysqlclient时发生错误，我被迫从站点下载文件。在更新了创建的环境的版本3.7.5中，未发生此问题，并且迁移成功。