无法在本地主机上启动Django项目
我试图从GitHub打开此项目 我使用无法在本地主机上启动Django项目,django,django-models,django-rest-framework,django-templates,pycharm,Django,Django Models,Django Rest Framework,Django Templates,Pycharm,我试图从GitHub打开此项目 我使用Pycharm打开整个编码文件 当我使用localhost运行web应用程序时,它失败并显示以下错误。我应该如何配置这个Django项目并在本地主机上启动 >Watching for file changes with StatReloader > Performing system checks... > > System check identified no issues (0 silenced).
Pycharm
打开整个编码文件
当我使用localhost运行web应用程序时,它失败并显示以下错误。我应该如何配置这个Django
项目并在本地主机上启动
>Watching for file changes with StatReloader
> Performing system checks...
>
> System check identified no issues (0 silenced).
> Exception in thread django-main-thread:
> Traceback (most recent call last):
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\base\base.py",
> line 220, in ensure_connection
> self.connect()
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\utils\asyncio.py",
> line 26, in inner
> return func(*args, **kwargs)
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\base\base.py",
> line 197, in connect
> self.connection = self.get_new_connection(conn_params)
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\utils\asyncio.py",
> line 26, in inner
> return func(*args, **kwargs)
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\postgresql\base.py",
> line 185, in get_new_connection
> connection = Database.connect(**conn_params)
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\psycopg2\__init__.py",
> line 126, in connect
> conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
> psycopg2.OperationalError: could not connect to server: Connection refused (0x0000274D/10061)
> Is the server running on host "localhost" (::1) and accepting
> TCP/IP connections on port 5432?
> could not connect to server: Connection refused (0x0000274D/10061)
> Is the server running on host "localhost" (127.0.0.1) and accepting
> TCP/IP connections on port 5432?
>
>
> The above exception was the direct cause of the following exception:
>
> Traceback (most recent call last):
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\threading.py",
> line 932, in _bootstrap_inner
> self.run()
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\threading.py",
> line 870, in run
> self._target(*self._args, **self._kwargs)
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\utils\autoreload.py",
> line 53, in wrapper
> fn(*args, **kwargs)
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\core\management\commands\runserver.py",
> line 120, in inner_run
> self.check_migrations()
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\core\management\base.py",
> line 458, in check_migrations
> executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\migrations\executor.py",
> line 18, in __init__
> self.loader = MigrationLoader(self.connection)
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\migrations\loader.py",
> line 49, in __init__
> self.build_graph()
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\migrations\loader.py",
> line 212, in build_graph
> self.applied_migrations = recorder.applied_migrations()
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\migrations\recorder.py",
> line 76, in applied_migrations
> if self.has_table():
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\migrations\recorder.py",
> line 56, in has_table
> return self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor())
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\utils\asyncio.py",
> line 26, in inner
> return func(*args, **kwargs)
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\base\base.py",
> line 260, in cursor
> return self._cursor()
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\base\base.py",
> line 236, in _cursor
> self.ensure_connection()
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\utils\asyncio.py",
> line 26, in inner
> return func(*args, **kwargs)
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\base\base.py",
> line 220, in ensure_connection
> self.connect()
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\utils.py",
> line 90, in __exit__
> raise dj_exc_value.with_traceback(traceback) from exc_value
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\base\base.py",
> line 220, in ensure_connection
> self.connect()
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\utils\asyncio.py",
> line 26, in inner
> return func(*args, **kwargs)
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\base\base.py",
> line 197, in connect
> self.connection = self.get_new_connection(conn_params)
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\utils\asyncio.py",
> line 26, in inner
> return func(*args, **kwargs)
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\postgresql\base.py",
> line 185, in get_new_connection
> connection = Database.connect(**conn_params)
> File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\site-packages\psycopg2\__init__.py",
> line 126, in connect
> conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
> django.db.utils.OperationalError: could not connect to server: Connection refused (0x0000274D/10061)
> Is the server running on host "localhost" (::1) and accepting
> TCP/IP connections on port 5432?
> could not connect to server: Connection refused (0x0000274D/10061)
> Is the server running on host "localhost" (127.0.0.1) and accepting
> TCP/IP connections on port 5432?
该错误似乎源于数据库配置中的问题。在查看该存储库中的settings.py文件后,我注意到当前的配置试图在本地主机上使用postgres服务器。但是,您似乎没有使用这些设置运行postgres服务器,因此django无法连接到该数据库并抛出错误。我可以从以下文档中推荐使用sqlite选项: 确认数据库设置与文档中的设置类似后,使用manage.py重新运行迁移并在sqlite数据库中创建所需的所有表
使用此sqlite数据库将有利于开发和测试,但是一旦您准备好了生产环境,您将希望切换回postgresql或其他类型的基于服务器的数据库。在我更改回sqlite Db设置后,我应该在控制台上执行
python manage.py makemigrations
&python manage.py migrate
?感谢迁移很可能已经完成了,但是您肯定至少需要运行python manage.py migrate
如果我使用sqlite db托管服务器,那么有什么缺点?