pip install django-hosts

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

MIDDLEWARE = [
  'django_hosts.middleware.HostsRequestMiddleware', # 头尾都要加

  ...

  'django_hosts.middleware.HostsResponseMiddleware',
]

ROOT_HOSTCONF = 'project_name.hosts' # 模块的路径，不是域名
DEFAULT_HOST = 'www' # Name of the default host, we will create it in the next steps

project_name/
 |-- __init__.py
 |-- hosts.py # `ROOT_HOSTCONF` 指向这个文件
 |-- settings.py
 |-- urls.py
 +-- wsgi.py

from django.conf import settings
from django_hosts import patterns, host

host_patterns = patterns('',
  host('www', settings.ROOT_URLCONF, name='www'), # `name`与`DEFAULT_HOST` 相同
  host('app01', 'app01.urls', name='app01'),
  host('app02', 'app02.urls', name='app02'),
)

from django.shortcuts import render
from django_hosts.resolvers import reverse

def homepage(request):
  homepage_url = reverse('homepage', host='www') # host可以不传，将会使用 DEFAULT_HOST
  user_list_url= reverse('user_list', host='app01')
  return render(request, 'homepage.html', {'homepage_url': homepage_url})

{% load hosts %}

<a href="{% host_url 'home' host 'www' %}" rel="external nofollow" >Homepage</a>
<a href="{% host_url 'articles' host 'help' %}" rel="external nofollow" >Help Articles</a>