request.POST 从 Django 1.11 升级到 Django 2.1 后为空

Question

这个 post 是上一个问题的后续问题：

Django request.POST empty

我有一个项目运行 Python 3.5.4 和 Django 1.11.13，在 Visual Studio 2015 年。我后来更新到 Django 2.1.2 因为我想导入 "path" 模块，这样我就可以使用这个：

urlpatterns = [

    path ( '',                                c_views.Indice,              name = 'indice' ),
    path ( '<int:CompiladoID>',               c_views.Detalle,             name = 'detalle'),
    path ( 'elementos/<int:CompiladoID>',     c_views.Elementos,           name = 'elementos'),
    path ( 'datoselementos/<int:ElementoID>', c_views.DatosElemento,       name = 'datoselemento'),

...而不是这个：

urlpatterns = [

    url ( r'^$',                                    c_views.Indice,         name = 'indice'),
    url ( r'^(?P<CompiladoID>\d+)/$',               c_views.Detalle,        name = 'detalle' ),
    url ( r'^(?P<CompiladoID>\d+)/elementos$',      c_views.Elementos,      name = 'elementos' ),
    url ( r'^(?P<CompiladoID>\d+)/generar$',        c_views.Generar,        name = 'generar' ),

我觉得更容易声明和阅读。进行此更改后，我开始遇到 request.POST 的问题。我收到 "request" 响应，但 POST 为空，如下所示：

其实我一开始并没有意识到这一点。我花了 3 天时间，与我恢复的备份副本进行比较，才意识到 Django 版本不同。也就是说，我感到困惑的是 newer 版本的 Django 不应该能够做旧版本所做的事情，除非发生了我不知道的改变。我只使用 Python/Django 几个月，谁能告诉我这是否有原因？对于使用 Django 2.1.2 的 urlpatterns，我不能使用 path 而不是 url 吗？

预先感谢您的帮助。

编辑（11 月 14 日）

这是我的settings.py（我基本上把'app'加到INSTALLED_APPS）：

"""
Django settings for MemoProject project.

Generated by 'django-admin startproject' using Django 1.9.1.

For more information on this file, see
https://docs.djangoproject.com/en/1.9/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/1.9/ref/settings/
"""

import os
import posixpath

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.9/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = '---'

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

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = [
    'app',
    # Add your apps here to enable them
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

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

ROOT_URLCONF = 'MemoProject.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 = 'MemoProject.wsgi.application'


# Database
# https://docs.djangoproject.com/en/1.9/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}


# Password validation
# https://docs.djangoproject.com/en/1.9/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/1.9/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.9/howto/static-files/

STATIC_URL = '/static/'

STATIC_ROOT = posixpath.join(*(BASE_DIR.split(os.path.sep) + ['static']))

Answer 1

MIDDLEWARE_CLASSES 在 Django 1.10 中被弃用，取而代之的是 removed in Django 2.0. You should be using MIDDLEWARE。

您应该删除 SessionAuthenticationMiddleware 因为它 hasn't been required since Django 1.10.

Django 1.11 给出了一个弃用警告，你应该从 MIDDLEWARE 切换，但你一定错过了这个。在升级 Django 之前，最好阅读发行说明并修复所有弃用警告。有关详细信息，请参阅 upgrade guide。

request.POST 从 Django 1.11 升级到 Django 2.1 后为空

request.POST empty after upgrading from Django 1.11 to Django 2.1

python

django

post

url-pattern