使用Flask和Django中解决跨域请求问题

pip install flask-cors

from flask_cors import *
app = Flask(__name__)
CORS(app, supports_credentials=True)

pip install django-cors-headers

INSTALLED_APPS = [
    ...
    'corsheaders'，
    ...
]
MIDDLEWARE_CLASSES = (
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'corsheaders.middleware.CorsMiddleware', # 添加这一行
    'django.middleware.common.CommonMiddleware',
    # 'django.middleware.csrf.CsrfViewMiddleware', 注释这一行
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
)
# 跨域增加忽略
CORS_ALLOW_CREDENTIALS = True #  指明在跨域访问中，后端是否支持对cookie的操作
CORS_ORIGIN_ALLOW_ALL = True # 允许所有主机请求你的API
CORS_ORIGIN_WHITELIST = ( # 跨域请求白名单，为空时默认为全部
    'http://127.0.0.1:8080',
    'http://localhost:8080',
)
CORS_ALLOW_METHODS = (
    'DELETE',
    'GET',
    'OPTIONS',
    'PATCH',
    'POST',
    'PUT',
    'VIEW',
)
CORS_ALLOW_HEADERS = (
    'XMLHttpRequest',
    'X_FILENAME',
    'accept-encoding',
    'authorization',
    'content-type',
    'dnt',
    'origin',
    'user-agent',
    'x-csrftoken',
    'x-requested-with',
)