在web开发中很多需求都需要实现分页功能,然而 Django Rest Framework 自带的分页功能,只能在 mixins.ListModelMixin and generics.GenericAPIView classes 继承这两个类才可以使用,而我们通常为了灵活性,往往会继承APIView 来实现,那么我们就需要自已使用分页功能。

一.serializers.py文件中定义序列化类

from rest_framework.serializers import Serializer
from models import MyModel
class MySerializer( Serializer.ModelSerializers):

    class Meta:
model = MyModel
fields = ("user_name", "age")

二.views.py视图函数中

from rest_framework.views import APIView 
from rest_framework from rest_framework.response import Response
from rest_framework.decorators import api_view
from django.core.paginator import Paginator
from serializers import MySerializer
from models import MyModel @api_view(["GET"])
def get_list(request):
try:
page_size = int(request.GET.get('page_size', 2))
page = int(request.GET.get('page', 1))
except (TypeError, ValueError):
return Response(status=status.HTTP_400_BAD_REQUEST)
  try:
    objs = MyModel.objects.all()
  except:
    return Response(status=status.HTTP_417_EXPECTATION_FAILED)
  paginator = Paginator(objs, page_size) # paginator对象
total = paginator.num_pages #总页数
try:
objs = paginator.page(page)
except PageNotAnInteger:
objs = paginator.page(1)
except EmptyPage:
objs = paginator.page(paginator.num_pages) serializer = MySerializer(objs, many=True) #序列化操作 return Response(data={
'detail': serializer.data,
page': page,
'total': total
}, status=status.HTTP_200_OK) #返回
05-11 19:23