python django url导入

http://192.168.137.3:8000/articles/2005/


Page not found (404)
Request Method: 	GET
Request URL: 	http://192.168.137.3:8000/articles/2005/

Using the URLconf defined in mysite.urls, Django tried these URL patterns, in this order:

    ^admin/
    ^blog/$

The current path, articles/2005/, didn't match any of these.

You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 404 page.



默认是去找 mysite下的urls.py文件

node2:/django/mysite/mysite#cat urls.py
"""mysite URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/1.11/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.conf.urls import url, include
    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
"""
from django.conf.urls import url
from django.contrib import admin
from blog import views as view
urlpatterns =( 
url(r'^admin/', admin.site.urls),
url(r'^blog/$',view.archive),
)



没有去找我news app下的urls.py文件？

node2:/django/mysite/news#cat urls.py 
from django.conf.urls import url

from . import views

urlpatterns = [
    url(r'^articles/([0-9]{4})/$', views.year_archive),
    url(r'^articles/([0-9]{4})/([0-9]{2})/$', views.month_archive),
    url(r'^articles/([0-9]{4})/([0-9]{2})/([0-9]+)/$', views.article_detail),
]



在Django框架中,提供了非常清晰简洁的url管理方法,在新建一个project之后(此处为myproject),

然后在项目中建立一个app(此处为myapp)，会看到有如下的目录结构:

一般所熟知的就是在myproject/myproject/urls.py中的 urlpatterns列表中来配置url,

node2:/django/mysite/mysite#cat urls.py
"""mysite URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/1.11/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.conf.urls import url, include
    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
"""
from django.conf.urls import include,url
from django.contrib import admin
from blog import views as view
from news import *
urlpatterns =( 
url(r'^admin/', admin.site.urls),
url(r'^blog/$',view.archive),
url(r'^articles/',include(news.urls))
)

每一个列表项就是一个由url函数的调用,例如假定我们想在myapp中定义一个主页,

然后通过"http://localhost:8000/myapp/homepage"来访问，首先我们在myproject/myapp//view.py中定义一个叫homePage的函数（名字随意，不一定叫这名字）：


但是假设一个project 中有多个app,用以上的方式来管理url可能会造成比较混乱的局面,


为了解决这个问题,我们可以用include的方法来配置url,首先在我们自己的app中建立一个urls.py

myproject/myapp/目录下建立urls.py，然后在其中输入如下内容:
[python] view plain copy
from django.conf.urls import url  
  
from myapp.views import homePage  
  
  
urlpatterns = [  
    url(r'homepage', homePage),  
]  


from django.conf.urls import url, include#导入了include函数  
from django.contrib import admin  
  
urlpatterns = [  
    url(r'^admin/', admin.site.urls),  
    url(r'^myapp/', include("myapp.urls"))#包含myapp中的urls  
]  



demo:

node2:/django/mysite/mysite#cat urls.py
"""mysite URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/1.11/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.conf.urls import url, include
    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
"""
from django.conf.urls import include,url
from django.contrib import admin
from blog import views as view
urlpatterns =( 
url(r'^admin/', admin.site.urls),
url(r'^blog/$',view.archive),
url(r'^articles/',include("news.urls"))
)

node2:/django/mysite/news#cat urls.py
from django.conf.urls import url

from . import views

urlpatterns = [
    url(r'^articles/([0-9]{4})/$', views.year_archive),
    #url(r'^articles/([0-9]{4})/([0-9]{2})/$', views.month_archive),
    #url(r'^articles/([0-9]{4})/([0-9]{2})/([0-9]+)/$', views.article_detail),
]