我正在运行Django并尝试连接到我大学的MySQL服务器。 首先： 为了连接数据库，我通常将SSH连接到他们的远程服务器（带有身份验证），然后运行MySQL并输入我的MySQL身份验证。 这在Terminal和DataGrip中没有问题。 现在，使用PyCharm，我在解释器中安装了mysqlclient并改变了我的 settings.py：
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': '[DB_NAME]',
'USER': '[DB_USERNAME]',
'PASSWORD': '[DB_PASSWORD]',
'HOST': '[REMOTE SERVER ADDRESS HOSTING MYSQL]',
'PORT': '3306',
}
}
同样使用PyCharm，我甚至在数据源工具窗口中打开了一个数据源，并通过SSH隧道和MySQL身份验证连接到数据库。这很成功，可以进行查询。
但是，我尝试运行：
manage.py check
我收到了：
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site- packages/django/db/backends/base/base.py", line 213, in ensure_connection
self.connect()
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/backends/base/base.py", line 189, in connect
self.connection = self.get_new_connection(conn_params)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 274, in get_new_connection
conn = Database.connect(**conn_params)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/MySQLdb/__init__.py", line 86, in Connect
return Connection(*args, **kwargs)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/MySQLdb/connections.py", line 204, in __init__
super(Connection, self).__init__(*args, **kwargs2)
_mysql_exceptions.OperationalError: (2003, "Can't connect to MySQL server on '[REMOTE SERVER ADDRESS HOSTING MYSQL]' (60)")
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/Applications/PyCharm.app/Contents/helpers/pycharm/django_manage.py", line 43, in <module>
run_module(manage_file, None, '__main__', True)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/runpy.py", line 205, in run_module
return _run_module_code(code, init_globals, run_name, mod_spec)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/runpy.py", line 96, in _run_module_code
mod_name, mod_spec, pkg_name, script_name)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/Users/skillapop/Desktop/streamcity_project/manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/core/management/__init__.py", line 363, in execute_from_command_line
utility.execute()
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/core/management/__init__.py", line 355, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/core/management/base.py", line 283, in run_from_argv
self.execute(*args, **cmd_options)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/core/management/base.py", line 330, in execute
output = self.handle(*args, **options)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/core/management/commands/check.py", line 68, in handle
fail_level=getattr(checks, options['fail_level']),
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/core/management/base.py", line 359, in check
include_deployment_checks=include_deployment_checks,
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/core/management/base.py", line 346, in _run_checks
return checks.run_checks(**kwargs)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/core/checks/registry.py", line 81, in run_checks
new_errors = check(app_configs=app_configs)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/core/checks/model_checks.py", line 30, in check_all_models
errors.extend(model.check(**kwargs))
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/models/base.py", line 1283, in check
errors.extend(cls._check_fields(**kwargs))
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/models/base.py", line 1358, in _check_fields
errors.extend(field.check(**kwargs))
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/models/fields/__init__.py", line 913, in check
errors = super(AutoField, self).check(**kwargs)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/models/fields/__init__.py", line 219, in check
errors.extend(self._check_backend_specific_checks(**kwargs))
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/models/fields/__init__.py", line 322, in _check_backend_specific_checks
return connections[db].validation.check_field(self, **kwargs)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/backends/mysql/validation.py", line 49, in check_field
field_type = field.db_type(self.connection)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/models/fields/__init__.py", line 644, in db_type
return connection.data_types[self.get_internal_type()] % data
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/utils/functional.py", line 35, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 174, in data_types
if self.features.supports_microsecond_precision:
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/utils/functional.py", line 35, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/backends/mysql/features.py", line 53, in supports_microsecond_precision
return self.connection.mysql_version >= (5, 6, 4) and Database.version_info >= (1, 2, 5)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/utils/functional.py", line 35, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 385, in mysql_version
with self.temporary_connection() as cursor:
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/contextlib.py", line 81, in __enter__
return next(self.gen)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/backends/base/base.py", line 591, in temporary_connection
cursor = self.cursor()
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/backends/base/base.py", line 254, in cursor
return self._cursor()
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/backends/base/base.py", line 229, in _cursor
self.ensure_connection()
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/backends/base/base.py", line 213, in ensure_connection
self.connect()
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/utils.py", line 94, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/utils/six.py", line 685, in reraise
raise value.with_traceback(tb)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/backends/base/base.py", line 213, in ensure_connection
self.connect()
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/backends/base/base.py", line 189, in connect
self.connection = self.get_new_connection(conn_params)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 274, in get_new_connection
conn = Database.connect(**conn_params)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/MySQLdb/__init__.py", line 86, in Connect
return Connection(*args, **kwargs)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/MySQLdb/connections.py", line 204, in __init__
super(Connection, self).__init__(*args, **kwargs2)
django.db.utils.OperationalError: (2003, "Can't connect to MySQL server on '[REMOTE SERVER ADDRESS HOSTING MYSQL]' (60)")
同样重要的是要注意我在测试运行之前已将Django项目连接到这个完全相同的服务器和数据库。现在，该测试项目和新项目没有连接。
任何帮助将不胜感激！