Django，当 debug=False

问题描述

该应用程序在 debug = True 时工作，当 debug = False 时，我的计算机和 Heroku 上均出现 500 个错误。

http://127.0.0.1:8000/admin/ 部分正在工作。 http://127.0.0.1:8000/ 是一个给出 500 错误的错误，所以我猜测错误出在静态文件中。 我跑了

python manage.py collectstatic

并创建静态文件，仍然是同样的问题。

任何建议：

这是我在终端上看到的：

[25/May/2021 00:37:43] "GET / HTTP/1.1" 500 145

这是我的settings.py：

from pathlib import Path

# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent

# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.1/howto/deployment/checklist/

import os

# using django-environ to read from .env
# https://github.com/joke2k/django-environ
import environ

env = environ.Env(
    # set casting,default value
    # DEBUG=(bool,False)
)

# reading .env file
environ.Env.read_env()

# Security WARNING: keep the secret key used in production secret!

SECRET_KEY = os.environ.get('DJANGO_SECRET_KEY','%)4ja40!mqevxsrj%2^o+2&a=8&t4oy$*^d-e5t^p^-^crpyy#')

# Security WARNING: don't run with debug turned on in production!
# DEBUG = True
DEBUG = os.environ.get('DJANGO_DEBUG','') != 'False'

ALLOWED_HOSTS = [
    '127.0.0.1','.localhost','.herokuapp.com'
]

# Application deFinition

INSTALLED_APPS = [
    'django.contrib.admin','django.contrib.auth','django.contrib.contenttypes','django.contrib.sessions','django.contrib.messages','django.contrib.staticfiles','attendance.apps.AttendanceConfig','pgtrigger',]

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 = 'Edmin.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 = 'Edmin.wsgi.application'

# Database
# https://docs.djangoproject.com/en/3.1/ref/settings/#databases

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

DATABASES = {
    # read os.environ['DATABASE_URL'] and raises ImproperlyConfigured exception if not found
    'default': env.db(),# read os.environ['sqlITE_URL']
    'extra': env.db('sqlITE_URL',default='sqlite:////db.sqlite3')
}

# Heroku: Update database configuration from $DATABASE_URL.
import dj_database_url
db_from_env = dj_database_url.config(conn_max_age=500)
DATABASES['default'].update(db_from_env)


# Password validation
# https://docs.djangoproject.com/en/3.1/ref/settings/#auth-password-validators

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',]

# Internationalization
# https://docs.djangoproject.com/en/3.1/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'America/Chicago'

USE_I18N = True

USE_L10N = True

USE_TZ = True

# Static files (CSS,JavaScript,Images)
# https://docs.djangoproject.com/en/3.1/howto/static-files/

STATIC_URL = '/static/'

# Redirect to home URL after login (Default redirects to /accounts/profile/)
LOGIN_REDIRECT_URL = '/'

# Simplified static file serving.
# https://warehouse.python.org/project/whitenoise/
STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesstorage'

# The absolute path to the directory where collectstatic will collect static files for deployment.
STATIC_ROOT = BASE_DIR / 'staticfiles'

解决方法

当 debug 为 False 时，Django 会向管理员发送调试电子邮件，因此首先通过添加以下代码将调试电子邮件打印到控制台。

EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'

错误是由

引起的

缺少静态文件清单条目

'/js/chart-js-config.js'

我删除了

STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'

并将其替换为

STATICFILES_STORAGE = 'django.contrib.staticfiles.storage.StaticFilesStorage'

并运行 collectstatic