Restful Framework 初识

 1 from django.contrib import admin
 2 
 3 from django.conf.urls import url, include
 4 from app01 import views
 5 from app02 import views
 6 
 7 urlpatterns = [
 8     url(‘admin/‘, admin.site.urls),
 9     # path(‘hosts/‘,views.HostView.as_view()),
10     url(‘app02/‘, include(‘app02.urls‘))
11 ]

1 from app02 import views
2 from django.conf.urls import url
3 urlpatterns = [
4     url(‘^users/‘, views.users),
5     url(‘^user/(\d+)‘, views.user),
6 
7     url(‘^users/‘, views.UsersView.as_view()),
8     url(‘^user/‘, views.UserView.as_view()),
9 ]

 1 from django.shortcuts import render,HttpResponse
 2 
 3 # Create your views here.
 4 import json
 5 
 6 def users(request):
 7     response = {‘code‘:1000,‘data‘:None}  #code用来表示状态，比如1000代表成功，1001代表
 8     response[‘data‘] = [
 9         {‘name‘:‘haiyan‘,‘age‘:22},
10         {‘name‘:‘haidong‘,‘age‘:10},
11         {‘name‘:‘haixiyu‘,‘age‘:11},
12     ]
13     return HttpResponse(json.dumps(response))  #返回多条数据
14 
15 def user(request,pk):
16     if request.method ==‘GET‘:
17         return HttpResponse(json.dumps({‘name‘:‘haiyan‘,‘age‘:11}))  #返回一条数据
18     elif request.method ==‘POST‘:
19         return HttpResponse(json.dumps({‘code‘:1111}))  #返回一条数据
20     elif request.method ==‘PUT‘:
21         pass
22     elif request.method ==‘DELETE‘:
23         pass

1 from app02 import views
2 from django.conf.urls import url
3 urlpatterns = [
4     url(‘^users/‘, views.UsersView.as_view()),
5     url(‘^user/‘, views.UserView.as_view()),
6 ]

 1 from django.views import View
 2 class UsersView(View):
 3     def get(self,request):
 4         response = {‘code‘:1000,‘data‘:None}
 5         response[‘data‘] = [
 6             {‘name‘: ‘haiyan‘, ‘age‘: 22},
 7             {‘name‘: ‘haidong‘, ‘age‘: 10},
 8             {‘name‘: ‘haixiyu‘, ‘age‘: 11},
 9         ]
10         return HttpResponse(json.dumps(response),stutas=200)
11 
12 class UserView(View):
13     def get(self,request,pk):
14         return HttpResponse(json.dumps({‘name‘:‘haiyan‘,‘age‘:11}))  #返回一条数据
15     def post(self,request,pk):
16         return HttpResponse(json.dumps({‘code‘:1111}))  #返回一条数据
17     def put(self,request,pk):
18         pass
19     def delete(self,request,pk):
20         pass

1 from app01 import views
2 from django.conf.urls import url
3 urlpatterns = [
4     # django rest framework
5     url(‘^hosts/‘, views.HostView.as_view()),
6     url(r‘^auth/‘, views.AuthView.as_view()),
7 ]

 1 from django.shortcuts import render,HttpResponse
 2 # Create your views here.
 3 from rest_framework.views import  APIView
 4 from rest_framework.views import Request
 5 from rest_framework.authentication import SessionAuthentication
 6 from rest_framework.authentication import BaseAuthentication, BasicAuthentication
 7 from rest_framework.parsers import JSONParser
 8 from rest_framework.negotiation import  DefaultContentNegotiation
 9 from rest_framework.exceptions import APIException
10 from app01 import models
11 from rest_framework.response import Response  #友好的显示返回结果
12 
13 
14 
15 class AuthView(APIView):
16     #auth登录页面不需要验证，可设置
17     authentication_classes = []  #登录页面不需要认证
18     def get(self,request):
19         ‘‘‘
20         接收用户名和密码
21         :param request:
22         :return:
23         ‘‘‘
24         ret = {‘code‘:1000,‘msg‘:None}
25         user = request.query_params.get(‘username‘)
26 
27         pwd = request.query_params.get(‘password‘)
28         print(user,pwd)
29         obj = models.UserInfo.objects.filter(username=user,password=pwd).first()
30         print(obj)
31         if not obj :
32             ret[‘code‘] = 1001
33             ret[‘msg‘] = ‘用户名或者密码错误‘
34             return Response(ret)
35         #创建随机字符串
36         import time
37         import hashlib
38         ctime = time.time()
39         key = ‘%s|%s‘%(user,ctime)
40         m = hashlib.md5()
41         m.update(key.encode(‘utf-8‘))
42         token = m.hexdigest()
43 
44         #保存数据
45         obj.token = token
46         obj.save()
47 
48         ret[‘token‘] = token
49         return Response(ret)
50 
51 class HostView(APIView):
52     def dispatch(self, request, *args, **kwargs):
53         return super().dispatch(request, *args, **kwargs)
54 
55     # authentication_classes = [MyAuthtication]
56 
57     def get(self,request,*args,**kwargs):
58         print(request.user,‘dddddddddddffffff‘)
59         print(request.auth,‘dddddddddd‘)
60         #原来的request，django.core.handlers.wsgi.WSGIRequest
61         #现在的request ,rest_framework.request.Request
62         # print(request)
63         authentication_classes = [SessionAuthentication,BaseAuthentication]
64         # print(self.authentication_classes)  # [<class ‘rest_framework.authentication.SessionAuthentication‘>,
65                                             #  <class ‘rest_framework.authentication.BasicAuthentication‘>]
66         return HttpResponse(‘GET请求的响应内容‘)
67 
68     def post(self,request,*args,**kwargs):
69         pass
70         # try:
71         #     try :
72         #         current_page = request.POST.get("page")
73         #
74         #         current_page = int(current_page)
75         #         int("asd")
76         #     except ValueError as e:
77         #         print(e)
78         #         raise #如果有raise说明自己处理不了了，就交给下面的一个去捕捉了
79         # except Exception as e:
80         #     print("OK")
81 
82 
83         return  HttpResponse(‘post请求的响应内容‘)
84 
85     def put(self, request, *args, **kwargs):
86         return HttpResponse(‘put请求的响应内容‘)

1 #注册认证类
2 REST_FRAMEWORK = {
3     ‘UNAUTHENTICATED_USER‘: None,
4     ‘UNAUTHENTICATED_TOKEN‘: None,  #将匿名用户设置为None
5     "DEFAULT_AUTHENTICATION_CLASSES": [
6         "app01.utils.MyAuthentication",
7     ],
8 }

 1 from  rest_framework.authentication import BaseAuthentication
 2 from rest_framework.exceptions import APIException
 3 from app02 import models
 4 
 5 
 6 class MyAuthentication(BaseAuthentication):
 7     def authenticate(self, request):
 8         token=request.query_params.get(‘token‘)
 9         print(token)
10         obj=models.UserInfo.objects.filter(token=token).first()
11         print(obj)
12         if obj:
13             return (obj.username,obj)
14         raise  APIException(‘没有通过验证‘)
15 
16 全局验证