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django小练习

作者:互联网

1.练习1

写一个类,有个name属性,如果name赋值为非字符串,就不让放

urls.py

from django.conf.urls import url
from app01 import views

urlpatterns = [
    url(r'^index/',views.index),

]

views.py

def index(request):
    if request.method == 'POST':
        print('post的值',request.POST)
        print('body的值:',request.body)
        print('data的值:',request.data)
        return HttpResponse('ok')
    print('data的get值:',request.data)
    return render(request,'index.html')

在django的app应用下创建一个py文件,然后自定义一个类,并在settings.py文件中配置上该自定义中间件:

middles.py

from django.utils.deprecation import MiddlewareMixin
import json

class ReqData(MiddlewareMixin):
    def process_request(self, request):
        try:
            request.data = json.loads(request.body)
        except Exception as e:
            request.data = request.POST
'''
在执行request.data = json.loads(request.body)会出现三种情况:
1.请求是urlencoded编码格式,会报错,走except下面的代码,
2.请求是json格式的数据,会被直接解析并封装到request.data中
3.请求是formdata格式的数据,文件数据无法反序列化,也会走except部分
'''



# settings.py配置文件中
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',
    'app01.middles.ReqData',  # 这里要注册自定义的中间件
]

参考:Django中间件小实例

 

标签:index,py,middleware,练习,request,django,data
来源: https://www.cnblogs.com/yesirya/p/16215876.html