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我的应用程序已成功部署到谷歌云平台。当我运行命令时glcoud app browse，它显示一个带有错误请求的空白页面（400）。这是错误的详细信息。我的应用程序在本地运行良好。问题出在哪里？是否有任何命令可以检查我的谷歌平台帐户中的所有设置是否完美？

Traceback (most recent call last):
  File "/env/lib/python3.6/site-packages/django/db/backends/base/base.py", line 220, in ensure_connection
    self.connect()
  File "/env/lib/python3.6/site-packages/django/utils/asyncio.py", line 26, in inner
    return func(*args, **kwargs)
  File "/env/lib/python3.6/site-packages/django/db/backends/base/base.py", line 197, in connect
    self.connection = self.get_new_connection(conn_params)
  File "/env/lib/python3.6/site-packages/django/utils/asyncio.py", line 26, in inner
    return func(*args, **kwargs)
  File "/env/lib/python3.6/site-packages/django/db/backends/postgresql/base.py", line 185, in get_new_connection
    connection = Database.connect(**conn_params)
  File "/env/lib/python3.6/site-packages/psycopg2/__init__.py", line 127, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
psycopg2.OperationalError: could not connect to server: Connection refused

设置.py

from decouple import config
BASE_DIR = os.path.dirname(os.path.dirname
(os.path.dirname(os.path.abspath(__file__))))

try:

    SECRET_KEY = os.environ['SECRET_KEY']
    DEBUG = False
except KeyError:
    SECRET_KEY = config('SECRET_KEY')
    DEBUG = True
    ALLOWED_HOSTS = ['*']
INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'blog',
    'projects',
    'crispy_forms',

]
CRISPY_TEMPLATE_PACK= 'bootstrap4'
MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'mysite.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'mysite.wsgi.application'


if os.getenv('GAE_APPLICATION', None):
    
    DATABASES = {
        'default': {
            'ENGINE': 'django.db.backends.postgresql',
            'HOST': '/cloudsql/connection name',
            'USER': ' user',
            'PASSWORD': 'project_password',
            'NAME': 'instance name',
           
        }
    }
else:
   
    DATABASES = {
        'default': {
            'ENGINE': 'django.db.backends.postgresql',
            'NAME': 'portfolio',
            'USER': 'postgres',
            'PASSWORD': 'local db password',
            'HOST': 'localhost',
            'PORT': 5432,

        }
    }

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },]
STATIC_URL = 'https://storage.googleapis.com/newinstance_buc/static/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'static/')
PROJECT_DIR = os.path.dirname(os.path.abspath(__file__))
STATIC_ROOT = os.path.join(PROJECT_DIR, 'static')
# STATICFILES_DIRS = (os.path.join(BASE_DIR, 'static'),)
MEDIA_URL = '/media/'

应用程序.yaml

runtime: python
env: flex
entrypoint: gunicorn -b :$PORT mysite.wsgi
env_variables:
  SECRET_KEY: 'password'
beta_settings:
    cloud_sql_instances: connection name

runtime_config:
  python_version: 3

automatic_scaling:
    min_num_instances: 1
    max_num_instances: 2
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