Django会话在本地正常工作,但一旦部署到Heroku,每次视图更改都会刷新它们

在本地工作时,在更改视图时,会话可以完美地工作,但在部署到Heroku时,就好像每次视图更改时都会刷新会话,并删除其中包含的所有信息。我正在使用Heroku的Postgres数据库。

我已经看过了:Django Session没有在Heroku上运行,但问题仍然存在。其他人也有同样的问题,但没有明确的答案。

这是我当前的设置文件。任何帮助都将不胜感激

import os
from pathlib import Path

BASE_DIR = Path(__file__).resolve().parent.parent


SECRET_KEY = 'e488a0185303170daa47fe1de243823fbb3db60f045e6eae'
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = ['127.0.0.1', 'here goes the heroku host']


# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    '....',
    '....',

]
ASGI_APPLICATION = 'System.asgi.application'
MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'whitenoise.middleware.WhiteNoiseMiddleware',
    '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 = 'System.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [BASE_DIR / 'templates']
        ,
        '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 = 'System.wsgi.application'

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
 }
import dj_database_url

db_from_env = dj_database_url.config()
DATABASES['default'].update(db_from_env)

SESSION_ENGINE= 'django.contrib.sessions.backends.cached_db'


AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
        'OPTIONS': {'min_length': 8}
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'authentication.validators.NumericValidator',
    },
    {
        'NAME': 'authentication.validators.UppercaseValidator',
    },
    {
        'NAME': 'authentication.validators.LowercaseValidator',
    },

]
LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'America/New_York'

USE_I18N = True

USE_L10N = True

USE_TZ = False

STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')

MEDIA_ROOT = os.path.join(BASE_DIR, 'authentication/media/')
MEDIA_URL = '/authentication/media/'