无法同步数据库

Question

我无法迁移我的代码。我在 MySql 中创建了一个数据库和一个表，但由于某种原因我不得不卸载 MySql，当我再次安装它时，我将用户名更改为 root。现在它一直在说

(1045, "访问被拒绝用户 'djanu'@'localhost' (使用密码: NO)")

当我尝试迁移时。当我第一次安装它时，我将我的用户命名为 djanu，我尝试向用户 root 授予权限，但同样的消息不断弹出。

这是我在 settings.py 中的代码

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'applics',
    'USER': 'root',
    'Password': '531010',
    'HOST': '',
    'PORT': '',     
    }
}

以及我使用 python manage.py migrate 甚至 runserver 时的代码

(myproject) C:\Users\home\myproject\collapp>python manage.py migrate

Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "C:\Users\home\myproject\lib\site-packages\django\core\management\__init__.py", line 367, in execute_from_command_line
    utility.execute()
  File "C:\Users\home\myproject\lib\site-packages\django\core\management\__init__.py", line 359, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\Users\home\myproject\lib\site-packages\django\core\management\base.py", line 294, in run_from_argv
    self.execute(*args, **cmd_options)
  File "C:\Users\home\myproject\lib\site-packages\django\core\management\base.py", line 342, in execute
    self.check()
  File "C:\Users\home\myproject\lib\site-packages\django\core\management\base.py", line 374, in check
    include_deployment_checks=include_deployment_checks,
  File "C:\Users\home\myproject\lib\site-packages\django\core\management\commands\migrate.py", line 61, in _run_checks
    issues = run_checks(tags=[Tags.database])
  File "C:\Users\home\myproject\lib\site-packages\django\core\checks\registry.py", line 81, in run_checks
    new_errors = check(app_configs=app_configs)
  File "C:\Users\home\myproject\lib\site-packages\django\core\checks\database.py", line 10, in check_database_backends
    issues.extend(conn.validation.check(**kwargs))
  File "C:\Users\home\myproject\lib\site-packages\django\db\backends\mysql\validation.py", line 9, in check
    issues.extend(self._check_sql_mode(**kwargs))
  File "C:\Users\home\myproject\lib\site-packages\django\db\backends\mysql\validation.py", line 13, in _check_sql_mode
    with self.connection.cursor() as cursor:
  File "C:\Users\home\myproject\lib\site-packages\django\db\backends\base\base.py", line 231, in cursor
    cursor = self.make_debug_cursor(self._cursor())
  File "C:\Users\home\myproject\lib\site-packages\django\db\backends\base\base.py", line 204, in _cursor
    self.ensure_connection()
  File "C:\Users\home\myproject\lib\site-packages\django\db\backends\base\base.py", line 199, in ensure_connection
    self.connect()
  File "C:\Users\home\myproject\lib\site-packages\django\db\utils.py", line 94, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "C:\Users\home\myproject\lib\site-packages\django\db\backends\base\base.py", line 199, in ensure_connection
    self.connect()
  File "C:\Users\home\myproject\lib\site-packages\django\db\backends\base\base.py", line 171, in connect
    self.connection = self.get_new_connection(conn_params)
  File "C:\Users\home\myproject\lib\site-packages\django\db\backends\mysql\base.py", line 263, in get_new_connection
    conn = Database.connect(**conn_params)
  File "C:\Users\home\myproject\lib\site-packages\MySQLdb\__init__.py", line 81, in Connect
    return Connection(*args, **kwargs)
  File "C:\Users\home\myproject\lib\site-packages\MySQLdb\connections.py", line 193, in __init__
super(Connection, self).__init__(*args, **kwargs2)
django.db.utils.OperationalError: (1045, "Access denied for user 'djanu'@'localhost' (using password: NO)")

Answer 1

这在我身上发生了很多次。可能的解决方案是从迁移文件夹中删除所有迁移，然后运行 ​​manage.py migrate。