Django简单认识配置和应用

命令行下创建

pip install django
命令
d:/django-admin startproject mysite
切换到目录下
d:/mysite
D:\mysite>python manage.py runserver 127.0.0.1:4444

pycharm:
   目录结构
   Myweb
       -settings.py #配置文件
       -url.py     #路由文件url->函数
       -wsgi       #定义socket，wsgiref,uwsgi
   -manage.py        #运行文件

创建project-->配置

静态文件配置

#settings.py文件下
#默认前缀
STATIC_URL = '/static/'
STATICFILES_DIRS=(
    os.path.join(BASE_DIR,'static'),
)

屏蔽跨站

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    # 'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

简单访问请求

#url.py

from django.http import HttpResponse
from django.urls import path

def test(request):
    return HttpResponse('1111111111')

urlpatterns = [
  
    path('index/', index),
]

访问模板

#url.py

from django.http import HttpResponse
from django.urls import path
from django.shortcuts import render, redirect

def test(request):
    return render(request, 'test.html')

urlpatterns = [
  
    path('index/', index),
]

#默认模板地址设置，在settings.py下
TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')]
        ,
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

简单登录示例：

#url.py文件

from django.contrib import admin
from django.http import HttpResponse
from django.http import HttpRequest
from django.shortcuts import render, redirect
from django.urls import path


def login(request):
    if request.method == 'GET':
        return render(request, 'login.html')
    else:
        u = request.POST.get('user')
        p = request.POST.get('pwd')

        if u == 'root' and p == '123456':
            return redirect('/index/')
        else:
            return render(request, 'login.html', {'msg': '账密错误'})


def index(request):
   return render(request, 'index.html')


urlpatterns = [
    path('login/', login),
    path('index/', index),
]

#login.html文件

<!DOCTYPE html>
<html lang="en">
<thead>
    <meta charset="UTF-8">
    <title>用户登录</title>
</thead>
<link rel="stylesheet" href="/static/1.css"/>
<body>
    <h1>用户登录</h1>
    <form METHOD="post" action="/login/">
        <input type="text" name="user">
        <input type="password" name="pwd">
        <input type="submit" value="登录">
    </form>{{ msg }}
</body>
</html>

模板和特殊标记

def index(request):

    return render(
        request,
        'index.html',
        {
            'name':'tom',
            'phone': ['10086', '12580'],
            'info': {'addr': 'gd', 'age': 18},
            'user_list_dict':[
                {'id':1,'name':'tom','email':'[email protected]'},
                {'id':2,'name':'mary','email':'[email protected]'},
                {'id':3,'name':'jimmy','email':'[email protected]'},
            ]
        }
    )

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>首页</title>
</head>
<body>
{{ name }}
{{ phone.0 }}
{{ phone.1 }}
{% for item in phone %}
    {{ item }}
{% endfor %}
{{ info.addr }}
{{ info.age }}
{% for item in info.items %}
    {{ item.0 }}{{ item.1 }}
{% endfor %}
<br>
<table border="1">
    {% for row in user_list_dict %}
    <tr>
        <td>{{ row.id }}</td>
        <td>{{ row.name }}</td>
        <td>{{ row.email }}</td>
    </tr>
    {% endfor %}
</table>>
</body>
</html>

呆马蓝

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Django简单认识配置和应用

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