drf基本使用

Posted 2020-11-26 harrytree

1、安装djangorestframework

pip install djangorestframework -i https://pypi.doubanio.com/simple

 

2、创建一个drf01的应用，来使用 drf ;  并在一个django工程settings.py中， 应用里面注册 rest_framework应用 、drf01应用

 

3、编写drf01/views.py里的视图

from django.shortcuts import render, HttpResponse
from django.views import  View
from django.http import JsonResponse

class Users(View):
    def get(self, request, *args, **kwargs):
        return JsonResponse(
                {
                    "status": "200",
                    "message":" django get ok",
                    "results" : []
                }
            )
    def post(self,request,  *args, **kwargs):
        return JsonResponse(
                {
                    "status": "200",
                    "message":" django post ok",
                    "results" : []
                }
            )

    def put(self,request,  *args, **kwargs):
        print( request.FILES)
        print(request.POST)
        print( request.GET)
        print(request.body)
        return JsonResponse(
                {
                    "status": "200",
                    "message":" django put ok",
                    "results" : []
                }
            )


from rest_framework.views import  APIView
from rest_framework.response import  Response

class Teachers(APIView):

    def get(self, request, *args, **kwargs):
        print(request.GET)
        return Response(
            {
                "status": "200",
                "message": " django restframework get ok",
                "results": []
            }
        )

    def post(self, request, *args, **kwargs):
        print(request.data)
        return Response(
            {
                "status": "200",
                "message": " django restframework post ok",
                "results": []
            }
        )

    def put(self, request, *args, **kwargs):
        print(request.data)
        return Response(
            {
                "status": "200",
                "message": " django restframework put ok",
                "results": []
            }
        )

    def patch(self, request, *args, **kwargs):
        print(request.data)
        return Response(
            {
                "status": "200",
                "message": " django restframework patch ok",
                "results": []
            }
        )

    def delete(self, request, *args, **kwargs):
        print(request.data)
        return Response(
            {
                "status": "200",
                "message": " django restframework delete ok",
                "results": []
            }
        )

 

4、注释掉crsf中间件； django自带的请求中，有csrf_token来做跨站请求防攻击；所以，测试django原生的post/put/patch/delete方法，需要注释掉csrf中间件；

但是 drf中as_view()调用了django中原生的as_view()方法， 但是局部禁用了csrf；

 

 

5、在drf01应用下urls.py里面配置路由

 

 

6、在工程下配置路由分发，将drf01请求分发到drf01路由下进行处理；

 

 

7、django中，CBV原生的五种请求方法,   get请求参数中在request.get ;  put请求参数在 request.body中

 

 

 

 

 

 

8、使用postman方式请求的使用，“teachers/”最后的斜杠要带上， 因为在浏览器中输入如果不带斜杠， django或者drf都会自动给带上，但是在postman里面不会，只能自己手动带上；