Django主机将非www重定向到www

Question

The site generates different URLs that all look like http://example.com/ 'somepath'. What I want to do is to redirect users from http://example.com/ 'somepath' to http://www.example.com/ 'somepath'. As I found out it's possible to do with django-hosts.
As it's said in instructions I have the following in settings.py:

ALLOWED_HOSTS = ['www.example.com', 'example.com']

INSTALLED_APPS = [
   ...,
   'django_hosts',
]

MIDDLEWARE = [
   'django_hosts.middleware.HostsRequestMiddleware',
   ...
   'django_hosts.middleware.HostsResponseMiddleware',
]

ROOT_URLCONF = 'appname.urls'
ROOT_HOSTCONF = 'appname.hosts'
DEFAULT_HOST = 'www'
DEFAULT_REDIRECT_URL = "http://www.example.com"
PARENT_HOST = "example.com"

In hostsconf/urls:

from django.conf.urls import url
from .views import wildcard_redirect

urlpatterns = [
    url(r'^(?P<path>.*)', wildcard_redirect),
]

In hostsconf/views:

from django.conf import settings
from django.http import HttpResponseRedirect

DEFAULT_REDIRECT_URL = getattr(settings, "DEFAULT_REDIRECT_URL", "http://www.example.com")

def wildcard_redirect(request, path=None):
    new_url = DEFAULT_REDIRECT_URL
    if path is not None:
        new_url = DEFAULT_REDIRECT_URL + "/" + path
    return HttpResponseRedirect(new_url)

But looks like it doesn't work because if I go to http://example.com/ 'somepath' it returns "400 Bad Request" and http://www.example.com/ 'somepath' points to the correct destination. What am I doing wrong?

Answer 1

Try the default settings PREPEND_WWW

https://docs.djangoproject.com/en/1.10/ref/settings/#prepend-www