1.Django安装

Django安装简介

1.Django语句

下载Django

pip install django==1.11.9

创建一个项目:firstblood

django-admin startproject firstblood

运行项目:

python manage.py runserver
python manage.py runserver 127.0.0.1:8080 
# 指定IP端口运行项目

创建应用:app01

python manage.py startapp app01

运行项目出现错误:'str' and 'str'

  File "D:Django练习djangoProject1djangoProject1settings.py", line 58, in <module>
'DIRS': [BASE_DIR / 'templates']
TypeError: unsupported operand type(s) for /: 'str' and 'str'

解决办法;
'DIRS': [BASE_DIR / 'templates']中的'/' 换成逗号','就可以了

2.登陆认证示例:

urls.py

from django.conf.urls import url
from django.contrib import admin
from app01 import views
urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^login/', views.login),
]

views.py

from django.shortcuts import render , HttpResponse

# Create your views here.
def login(request): #请求相关信息

    if request.method == 'GET': #如果请求方法是get返回页面
        print(request.method) #请求方法  GET
        print(request.path) #请求路径  /login/
        # return HttpResponse('hello world') #返回字符串
        return render(request,'login.html')  #返回页面
    else:
        print(request.POST)
        #<QueryDict: {'username': ['root'], 'password': ['123']}>
        #获取页面提交的数据
        username = request.POST.get('username') #root
        pwd = request.POST.get('password') #123
        if username == 'jia' and pwd == '123':
            return render(request,'home.html') #用户名密码正确返回home页面
        return render(request, 'login.html') #否则返回登陆页面

templates目录下两个文件:

<body>

{#action属性写的是数据提交到的路径 /login/相对路径相当于 http://127.0.0.1:8000/login/#}
<form action="/login/" method="post">
    用户名:<input type="text" name="username">
    <br>
    密码:<input type="password" name="password">
    <br>
    <input type="submit">
</form>

</body>

home.html

<body>
<h1>欢迎回家</h1>
</body>

访问网页出现:Forbidden (403)

解决办法:
到settings.py文件中把 MIDDLEWARE配置中的
	'django.middleware.csrf.CsrfViewMiddleware',
注释掉