Django 路由系统

单一路由对应

from django.urls import re_path path

# FBV
re_path(r'^login.html$', views.login),
path(r'login.html', views.login),
# CBV
re_path(r'^login.html$', views.Login.as_view()),

基于正则的路由

from django.urls import re_path

re_path(r'^test-(\d+)/', views.test),	# 以位置判断参数
re_path(r'^url-(?P<nid>\d+)-(?P<uid>\d+).html', views.url),		# 以名称判断参数，建议使用这种，不受传递参数位置改变影响

获取方法：

def test1(request, page):
    print(page)
    return render(request, 'test1.html')

def test2(request, **kwargs):
    print(kwargs.get('nid', None), kwargs.get('uid', None))
    return render(request, 'test2.html')

添加额外的参数

# FBV
re_path(r'^index1.html$', views.index(参数)),
# CBV
re_path(r'^index1.html$', views.Index.as_view()(参数)),

为路由映射设置名称

re_path(r'^index1/', views.index, name='i1'),
re_path(r'^index2/(\d+)/(\d+)/', views.index, name='i2'),
re_path(r'^index3/(?P<pid>\d+)/(?P<nid>\d+)/', views.index, name='i3'),

在 .py 文件中
通过 reverse 获取 url

from django.urls import reverse

def func(request, *args, **kwargs):
url1 = reverse('i1')                              # index1/
url2 = reverse('i2', args=(1,2,))                 # index2/1/2/
url3 = reverse('i3', kwargs={'pid': 1, 'nid': 9}) # index3/1/9/

在 html 文件中

{% url "i1" %}               # index1/
{% url "i2" 1 2 %}           # index2/1/2/
{% url "i3" pid=1 nid=9 %}   # index3/1/9/

根据APP对路由规则进行分类

project/urls.py:

from django.conf.urls import re_path, include
from django.contrib import admin

urlpatterns = [
	re_path(r'^app01/', include("app01.urls")),
	re_path(r'^app02/', include("app02.urls")),
]

app01/urls.py:

from django.conf.urls import re_path, include
from django.contrib import admin
from app01 import views

urlpatterns = [
	re_path(r'^login/', views.login),
]

app02/urls.py:

from django.conf.urls import re_path, include
from django.contrib import admin
from app02 import views

urlpatterns = [
	re_path(r'^login/', views.login),
]

默认值

url.py:

urlpatterns = [
	re_path(r'^index/', views.index, {'name': 'root'}),
]

views.py:

def index(request, name):
	print(name)
	return HttpResponse('OK')

命名空间

project/urls.py:

from django.conf.urls import re_path, include

urlpatterns = [
	re_path(r'^app01-m/', include("app01.urls", namespace='app_m')),
	re_path(r'^app01-n/', include("app01.urls", namespace='app_n')),
]

app01/urls.py:

from django.conf.urls import url
from app01 import views

app_name = 'app01'
urlpatterns = [
    url(r'^(?P<pk>\d+)/$', views.test, name='detail')
]

在 views.py 文件中

from django.urls import reverse

def test(request, **kwargs):
    pk = kwargs.get('pk', None)
    print(reverse('app01:detail', kwargs={'pk': pk}))
    print(reverse('app_m:detail', kwargs={'pk': pk}))
    print(reverse('app_n:detail', kwargs={'pk': pk}))
    print(request.resolver_match)
    return render(request, 'test.html', {'pk': pk})

访问'/app01-m-app/1/'，输出结果：

/app01-n/1/
/app01-m/1/
/app01-n/1/
ResolverMatch(func=app01.views.test, args=(), kwargs={'pk': '1'}, url_name=detail, app_names=['app01'], namespaces=['app_m'], route=^app01-m/(?P<pk>\d+)/$)

访问'/app01-n-app/1/'，输出结果：

/app01-n/1/
/app01-m/1/
/app01-n/1/
ResolverMatch(func=app01.views.test, args=(), kwargs={'pk': '1'}, url_name=detail, app_names=['app01'], namespaces=['app_n'], route=^app01-n/(?P<pk>\d+)/$)

在 test.html 文件中

{% url 'app01:detail' pk %}
{% url 'app_m:detail' pk %}
{% url 'app_n:detail' pk %}

访问'/app01-m-app/1/'，显示：

/app01-m/1/ /app01-m/1/ /app01-n/1/

访问'/app01-n-app/1/'，显示：

/app01-n/1/ /app01-m/1/ /app01-n/1/