Django Rest framework三种分页方式详解

REST_FRAMEWORK = {  # 对所有分页器生效，但优先级低  'PAGE_SIZE': 5, # 每页显示5条数据}

from django.db import modelsclass Test(models.Model):  """用于测试分页的数据表"""  name = models.CharField(max_length=64)

# 在Python脚本中调用Django环境import osif __name__ == '__main__':  # 将下面的'blog095.settings'改为项目对应的名称后直接执行即可生成记录  os.environ.setdefault('DJANGO_SETTINGS_MODULE', > 'blog095.settings')  import django  django.setup()  from blog.models import Test # 导入数据表  [Test.objects.create(name="花千骨%s" % str(i)) for i in range(100)]

from rest_framework.serializers import ModelSerializerfrom blog.models import Test # 导入数据表class TestSerializer(ModelSerializer):  """用于测试分页的序列化类"""  class Meta:    model = Test    fields = '__all__'

from rest_framework import paginationclass PageNumberPagination(pagination.PageNumberPagination):  """查第n页，每页显示n条数据"""  page_size = 10 # 指定每页显示多少条数据  page_size_query_param = 'size' # URL参数中每页显示条数的参数  page_query_param = 'page' # URL中页码的参数  max_page_size = None # 每页最多显示多少条数据

from rest_framework.response import Responsefrom rest_framework.views import APIViewfrom rest_framework.serializers import ModelSerializerfrom blog.models import Test # 导入数据表from blog import pagination # 导入上面的分页配置class Test01View(APIView):  def get(self, request):    queryset = Test.objects.all()    # 1. 实例化分页器对象    page_obj = pagination.PageNumberPagination()    # 2. 使用自己配置的分页器调用分页方法进行分页    page_data = page_obj.paginate_queryset(queryset, request)    # 3. 序列化我们分页好的数据    ser_obj = TestSerializer(page_data, many=True)    # # 4. 返回数据    # return Response(ser_obj.data)    # 4. 返回带上一页/下一页连接的页面    return page_obj.get_paginated_response(ser_obj.data)

from rest_framework import paginationclass LimitOffsetPagination(pagination.LimitOffsetPagination):  """在第n个位置，向后查n条数据"""  default_limit = 1 # 指定默认查多少条数据  limit_query_param = 'limit' # URL中指定查多少条数据的参数  offset_query_param = 'offset' # URL中指定从第几条数据开始查的参数  max_limit = 999 # 最大显示多少条数据

from rest_framework.response import Responsefrom rest_framework.views import APIViewfrom rest_framework.serializers import ModelSerializerfrom blog.models import Test # 导入数据表from blog.pagination import LimitOffsetPagination # 导入上面的分页配置class Test02View(APIView):  def get(self, request):    queryset = Test.objects.all()    # 1. 实例化分页器对象    page_obj = LimitOffsetPagination()    # 2. 使用自己配置的分页器调用分页方法进行分页    page_data = page_obj.paginate_queryset(queryset, request)    # 3. 序列化我们分页好的数据    ser_obj = TestSerializer(page_data, many=True)    # # 4. 返回数据    # return Response(ser_obj.data)    # 4. 返回带上一页/下一页连接的页面    return page_obj.get_paginated_response(ser_obj.data)

from rest_framework import paginationclass CursorPagination(pagination.CursorPagination):  """加密游标的分页"""  cursor_query_param = 'cursor' # 游标(这是加密的游标)  # ordering = '-id' # 从后往前取数据  ordering = 'id'  page_size = 1 # 每页显示的条数

from rest_framework.response import Responsefrom rest_framework.views import APIViewfrom rest_framework.serializers import ModelSerializerfrom blog.models import Test # 导入数据表from blog.pagination import CursorPagination # 导入上面的分页配置class Test03View(APIView):  def get(self, request):    queryset = Test.objects.all()    # 1. 实例化分页器对象    page_obj = CursorPagination()    # 2. 使用自己配置的分页器调用分页方法进行分页    page_data = page_obj.paginate_queryset(queryset, request)    # 3. 序列化我们分页好的数据    ser_obj = TestSerializer(page_data, many=True)    # # 4. 返回数据    # return Response(ser_obj.data)    # 4. 返回带上一页/下一页连接的页面    return page_obj.get_paginated_response(ser_obj.data)

from rest_framework.viewsets import ModelViewSetclass Test04View(ModelViewSet):  queryset = Test.objects.all()  serializer_class = TestSerializer  pagination_class = CursorPagination # 指定分页配置器