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Hello World跑起来

django下载

pip install django

Hello World跑起来

使用Django快速搭建一个web服务

新建demo目录,进入demo目录

mkdir demo
cd demo

demo目录中,创建项目helloworld

django-admin startproject helloworld
cd helloworld

项目helloworld中创建一个app,名为newapp

查看目录

python manage.py startapp newapp
dir(or ls)

看下项目目录结构

tree /F(win) | tree (linux)

.
├── newapp
│   ├── admin.py
│   ├── __init__.py
│   ├── migrations
│   │   └── __init__.py
│   ├── models.py
│   ├── tests.py
│   └── views.py
├── helloworld
│   ├── __init__.py
│   ├── __pycache__
│   │   ├── __init__.cpython-36.pyc
│   │   └── settings.cpython-36.pyc
│   ├── settings.py
│   ├── urls.py
│   └── wsgi.py
└── manage.py

新建的app newapp添加到默认配置中

./helloworld/settings.py

,在

INSTALLED_APPS

数组中添加app newapp

INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'newapp',
)

编辑newapp目录中的视图view.py文件

#coding: utf-8
from django.shortcuts import render
# 加入http响应模块
from django.http import HttpResponse
# 定义函数index做响应
def index(request):
# 响应为字符串Hello World
return HttpResponse(u'Hello World')

为刚才的view视图配置url路由,编辑

./helloworld/urls.py

from django.conf.urls import include, url
from django.contrib import admin
#导入newapp view视图
from newapp import views as newapp_views

urlpatterns = [
url(r'^admin/', include(admin.site.urls)),
# 当请求首页时,响应为newapp中的index方法
url(r'^$', newapp_views.index)
]

运行web服务器

python manage.py runserver 0.0.0.0:8000

浏览器测试成功



回顾操作步骤

.
├── newapp   2 创建app
│   ├── admin.py
│   ├── __init__.py
│   ├── migrations
│   │   └── __init__.py
│   ├── models.py
│   ├── tests.py
│   └── views.py 3 修改views.py(导入request模块 写index方法)
├── helloworld  1 创建project
│   ├── __init__.py
│   ├── __pycache__
│   │   ├── __init__.cpython-36.pyc
│   │   └── settings.cpython-36.pyc
│   ├── settings.py 4 配置文件添加app
│   ├── urls.py 5 设置路由(导入view视图,写路由规则)
│   └── wsgi.py
└── manage.py