Django部署至Render.com出现404错误 求排查方案

• 本地服务器测试时运行正常，应用基于generics.APIViews开发，无index.html文件及静态资源需要托管
• 已严格遵循Render.com的Django部署相关文档，目前怀疑问题与端口绑定有关，作为Django新手可能遗漏了基础配置细节

settings.py配置代码 #

import os
import dj_database_url
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/5.1/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = os.environ.get('SECRET_KEY', default='your secret key')

# SECURITY WARNING: don't run with debug turned on in production!
#DEBUG = True
DEBUG = 'RENDER' not in os.environ

ALLOWED_HOSTS = ['*']

RENDER_EXTERNAL_HOSTNAME = os.environ.get('RENDER_EXTERNAL_HOSTNAME')
if RENDER_EXTERNAL_HOSTNAME:
    ALLOWED_HOSTS.append(RENDER_EXTERNAL_HOSTNAME)



# Application definition

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

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 = 'jproj.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 = 'jproj.wsgi.application'


# Database
# https://docs.djangoproject.com/en/5.1/ref/settings/#databases

DATABASES = {
                'default': dj_database_url.config(
                        
                    default='postgresql://postgres:postgres@localhost:5432/jproj',
                    conn_max_age=600 )
                }


# Password validation
# https://docs.djangoproject.com/en/5.1/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/5.1/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/5.1/howto/static-files/

#STATIC_URL = 'static/'
STATIC_URL = '/static/'

if not DEBUG:
    # Tell Django to copy static assets into a path called `staticfiles` (this is specific to Render)
    STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
    # Enable the WhiteNoise storage backend, which compresses static files to reduce disk use
    # and renames the files with unique names for each version to support long-term caching
    STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'


# Default primary key field type
# https://docs.djangoproject.com/en/5.1/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

相关截图 #

• Render.com环境变量配置：
• 404错误页面：
• 项目根目录urls.py：
• 应用目录urls.py：

请求帮助排查该404错误的原因并提供解决方案。

内容的提问来源于stack exchange，提问作者Jeff