Question

我正在使用以下使用virtualenv的django项目 Django的== 1.7.6 argparse == 1.2.1 psycopg2 == 2.6 ==的wsgiref 0.1.2

但是当我尝试python manage.py runserver时，它会给我这个错误

Performing system checks...

System check identified no issues (0 silenced).
Unhandled exception in thread started by <function wrapper at 0x7f0574e8c0c8>
Traceback (most recent call last):
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/utils/autoreload.py", line 222, in wrapper
    fn(*args, **kwargs)
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 107, in inner_run
    self.check_migrations()
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 159, in check_migrations
    executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/db/migrations/executor.py", line 17, in __init__
    self.loader = MigrationLoader(self.connection)
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/db/migrations/loader.py", line 48, in __init__
    self.build_graph()
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/db/migrations/loader.py", line 183, in build_graph
    self.applied_migrations = recorder.applied_migrations()
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/db/migrations/recorder.py", line 59, in applied_migrations
    self.ensure_schema()
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/db/migrations/recorder.py", line 49, in ensure_schema
    if self.Migration._meta.db_table in self.connection.introspection.get_table_list(self.connection.cursor()):
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 165, in cursor
    cursor = self.make_debug_cursor(self._cursor())
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 138, in _cursor
    self.ensure_connection()
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 133, in ensure_connection
    self.connect()
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/db/utils.py", line 94, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 133, in ensure_connection
    self.connect()
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 122, in connect
    self.connection = self.get_new_connection(conn_params)
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 130, in get_new_connection
    connection = Database.connect(**conn_params)
  File "/home/marashen/.virtualenvs/192/local/lib/python2.7/site-packages/psycopg2/__init__.py", line 164, in connect
    conn = _connect(dsn, connection_factory=connection_factory, async=async)
django.db.utils.OperationalError: could not connect to server: Connection refused
	Is the server running on host "127.0.0.1" and accepting
	TCP/IP connections on port 5432?

我的settings.py是

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': 'elfmsdb',
        'USER': 'postgres',
        'PASSWORD': '',
        'HOST': '127.0.0.1',
        'PORT': '5432',
    }
}

我还检查了postgresql.conf，并使用5432作为端口。

另外一件奇怪的事情是，我不小心在我的virtualenv之外运行服务器并且它工作但是django版本是1.6。

请帮助我，非常感谢！

Answer 1

我不知道问题是什么，但我试过

$ sudo service postgresql restart 并且runserver在那之后工作。

Answer 2

也许您可以尝试以下方法：

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': 'elfmsdb',
        'USER': 'postgres',
        'PASSWORD': '',
        'HOST': '127.0.0.1',
        'PORT': '5432',
    }
}

django postgres无法连接到服务器

2 个答案: