django學習筆記【002】創建第一個django app


2.3.3

1、創建一個名叫polls的app

python3.5 manage.py startapp polls
tree mysite/
mysite/
├── db.sqlite3
├── manage.py
├── mysite
│   ├── __init__.py
│   ├── __pycache__
│   │   ├── __init__.cpython-35.pyc
│   │   ├── settings.cpython-35.pyc
│   │   ├── urls.cpython-35.pyc
│   │   └── wsgi.cpython-35.pyc
│   ├── settings.py
│   ├── urls.py
│   └── wsgi.py
└── polls
    ├── admin.py
    ├── apps.py
    ├── __init__.py
    ├── migrations
    │   └── __init__.py
    ├── models.py
    ├── tests.py
    └── views.py

 

2、給polls這個app編寫一個視圖、也就是為polls/views.py 中增加相應輸出html的文件;修改后polls/views.py 的內容如下:

from django.shortcuts import render
from django.http import HttpResponse
# Create your views here.


def index(request):
    return HttpResponse("this is polls.index")

 

3、為視圖關聯一個url,這樣通過這個url就能訪問這個視圖了;於是在pollsg下創建一個urls.py文件;

   polls/urls.py 的內容如下:

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

urlpatterns=[
    url(r'^$',views.index,name='index'),
]

 

4、把polls的url配置增加到整個project的url配置中去,所以把mysite/urls.py 文件的內容改成如下:

"""mysite URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/1.10/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,include # 這里還要增加include的引用
from django.contrib import admin

urlpatterns = [
    url(r'^polls/', include('polls.urls')), #注意include的參數中用的是 ‘.’號而不是目錄分隔'/'
    url(r'^admin/', admin.site.urls),
]

 

5、測試能不能訪問到polls/view/index這個視圖

 


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