django connec mysql --_ mysql_exceptions.OperationalError:(2006，< NULL>) [英] django connec mysql --_mysql_exceptions.OperationalError: (2006, <NULL>)

问题描述

事实上，我是从以下网站学习django的: https://docs.djangoproject.com/zh-hans/2.1/intro/tutorial02/

In fact, I learn the django from the website:https://docs.djangoproject.com/zh-hans/2.1/intro/tutorial02/

下一个是我的settting.py

The next is my settting.py

DATABASES = {
    # 'default': {
    #     'ENGINE': 'django.db.backends.sqlite3',
    #     'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    # }
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'django_01',
        'USER': 'root',
        'PASSWORD': '9940',
        'HOST': 'localhost',   # Or an IP Address that your DB is hosted on
        'PORT': '3306',
    }
} 

mysql: 在此处输入图片描述

我想知道如何解决此问题，或者我不知道这是什么问题? 非常感谢你！

I want to know how to solve this problem,or I don't know what's the problem? Thank you very much!

我认为DATABASES是正确的， 我想将mysql连接到名为mysite的django程序，但是我运行'python manage.py migration':

I think DATABASES is right, I want to connect mysql to django program named mysite, but I run 'python manage.py migrate':

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x0000000003B31D08>
Traceback (most recent call last):
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\backends\base\base.py", line 216, in ensure_connection
    self.connect()
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\backends\base\base.py", line 194, in connect
    self.connection = self.get_new_connection(conn_params)
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\backends\mysql\base.py", line 227, in get_new_connection
    return Database.connect(**conn_params)
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\MySQLdb\__init__.py", line 85, in Connect
    return Connection(*args, **kwargs)
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\MySQLdb\connections.py", line 208, in __init__
    super(Connection, self).__init__(*args, **kwargs2)
_mysql_exceptions.OperationalError: (2006, <NULL>)

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

Traceback (most recent call last):
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\utils\autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\core\management\commands\runserver.py", line 120, in inner_run
    self.check_migrations()
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\core\management\base.py", line 442, in check_migrations
    executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\migrations\executor.py", line 18, in __init__
    self.loader = MigrationLoader(self.connection)
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\migrations\loader.py", line 49, in __init__
    self.build_graph()
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\migrations\loader.py", line 212, in build_graph
    self.applied_migrations = recorder.applied_migrations()
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\migrations\recorder.py", line 61, in applied_migrations
    if self.has_table():
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\migrations\recorder.py", line 44, in has_table
    return self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor())
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\backends\base\base.py", line 255, in cursor
    return self._cursor()
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\backends\base\base.py", line 232, in _cursor
    self.ensure_connection()
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\backends\base\base.py", line 216, in ensure_connection
    self.connect()
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\utils.py", line 89, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\backends\base\base.py", line 216, in ensure_connection
    self.connect()
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\backends\base\base.py", line 194, in connect
    self.connection = self.get_new_connection(conn_params)
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\django\db\backends\mysql\base.py", line 227, in get_new_connection
    return Database.connect(**conn_params)
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\MySQLdb\__init__.py", line 85, in Connect
    return Connection(*args, **kwargs)
  File "D:\Tools\Anaconda3\envs\test-django\lib\site-packages\MySQLdb\connections.py", line 208, in __init__
    super(Connection, self).__init__(*args, **kwargs2)
django.db.utils.OperationalError: (2006, <NULL>)

推荐答案

在使用python连接Windows上的MySQL Server时，我得到了相同的OperationalError: (2006, <NULL>).似乎该错误与MySQL 8中的新身份验证方法有关.我将MySQL服务器从使用推荐的身份验证方法重新配置为使用旧式身份验证方法"，该错误消失了.

I got the same OperationalError: (2006, <NULL>) when using python to connect to MySQL Server on Windows. It seems like the error has something to do with the new authentication method in MySQL 8. I reconfigured the MySQL server from using the recommended authentication method to "Use Legacy Authentication Method" and the error goes away.

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