閱讀目錄

• 基礎(chǔ)視圖
• 基于mixins來封裝的視圖
• mixins封裝再封裝，第三種方法
• 第四種寫法，再次封裝，全部寫在一個類中

基礎(chǔ)視圖

示例環(huán)境搭建：新建一個Django項目，連接Mysql數(shù)據(jù)庫，配置路由、視圖函數(shù)、序列化單獨創(chuàng)建py文件

-------------------------------------------------------------------- 注：如果你對python感興趣，我這有個學習Python基地，里面有很多學習資料，感興趣的+Q群：895817687 --------------------------------------------------------------------# 配置路由from django.conf.urls import url from django.contrib import admin from app01 import viewsurlpatterns = [url(r'^admin/', admin.site.urls),url(r'^PublishView/', views.PublishView.as_view()),url(r'^PublishDetailView/(?P<pk>\d+)', views.PublishDetailView.as_view()),] # 視圖：from django.shortcuts import render from rest_framework.views import APIView from app01 import models from app01.MySer import BookSer,PublishSer,AuthorSer from rest_framework.response import Response # Create your views here. # 基本視圖class PublishView(APIView):def get(self,request):publish_list = models.Publish.objects.all()bs = PublishSer(publish_list, many=True)return Response(bs.data)def post(self, request):bs = PublishSer(data=request.data)if bs.is_valid():bs.save()return Response(bs.data)else:return Response(bs.errors)class PublishDetailView(APIView):def get(self, request, pk):publish_obj = models.Publish.objects.filter(pk=pk).first()bs = PublishSer(publish_obj, many=False)return Response(bs.data)def put(self, request, pk):publish_obj = models.Publish.objects.filter(pk=pk).first()bs = PublishSer(data=request.data, instance=publish_obj)if bs.is_valid():bs.save()return Response(bs.data)else:return Response(bs.data)def delete(self, request, pk):models.Publish.objects.filter(pk=pk).delete()return Response("") # MySer.pyfrom rest_framework import serializers from app01 import modelsclass BookSer(serializers.ModelSerializer):class Meta:model = models.Bookfields = '__all__'class PublishSer(serializers.ModelSerializer):class Meta:model = models.Publishfields = '__all__'class AuthorSer(serializers.ModelSerializer):class Meta:model = models.Authorfields = '__all__'

基于mixins來封裝的視圖

其它不變，更改視圖：

# 基于mixins來封裝的視圖 from rest_framework.mixins import CreateModelMixin,\ListModelMixin,\RetrieveModelMixin,\DestroyModelMixin,\UpdateModelMixin from rest_framework.generics import GenericAPIViewclass PublishView(CreateModelMixin, ListModelMixin, GenericAPIView):queryset = models.Publish.objects.all()serializer_class = PublishSerdef get(self, request, *args, **kwargs):return self.list(request, *args, **kwargs)def post(self, request, *args, **kwargs):return self.create(request, *args, **kwargs)class PublishDetailView(RetrieveModelMixin, UpdateModelMixin, DestroyModelMixin, GenericAPIView):queryset = models.Publish.objects.all()serializer_class = PublishSerdef get(self, request, *args, **kwargs):return self.retrieve(request, *args, **kwargs)def put(self, request, *args, **kwargs):return self.update(request, *args, **kwargs)def delete(self, request, *args, **kwargs):return self.destroy(request, *args, **kwargs)

可以看出視圖類中還是有很多冗余代碼

回到頂部

mixins封裝再封裝，第三種方法

# 第三種寫法： from rest_framework.generics import CreateAPIView,\ListCreateAPIView,\DestroyAPIView,\RetrieveUpdateDestroyAPIViewclass PublishView(ListCreateAPIView):queryset = models.Publish.objects.all()serializer_class = PublishSerclass PublishDetailView(RetrieveUpdateDestroyAPIView):queryset = models.Publish.objects.all()serializer_class = PublishSer

還是有冗余代碼

回到頂部

第四種寫法，再次封裝，全部寫在一個類中

# 路由 from django.conf.urls import url from django.contrib import admin from app01 import viewsurlpatterns = [url(r'^admin/', admin.site.urls),url(r'^publish/$', views.PublishView.as_view({'get': 'list', 'post': 'create'})),url(r'^publish/(?P<pk>\d+)$', views.PublishView.as_view({'get': 'retrieve', 'put': 'update', 'delete': 'destroy'})),] # 第四種寫法：5個接口寫在一個類中 from rest_framework.viewsets import ModelViewSet class PublishView(ModelViewSet):queryset = models.Publish.objects.all()serializer_class = PublishSer

補充：

from rest_framework.viewsets import ViewSetMixin from rest_framework.views import APIView # ViewSetMixin 重寫了as_view方法 class Test(ViewSetMixin,APIView):def aaa(self,request):return Response()

總結(jié)

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