序列化使用：serializers.HyperlinkedModelSerializer

带超链接的模型的序列化
1，配置
我们需要添加我们的新snippets应用和rest_framework应用INSTALLED_APPS。让我们编辑tutorial/settings.py文件：

INSTALLED_APPS = (
    ...
    'rest_framework',
)

2，创建一个可使用的模型
3，创建一个Serializer类。

from rest_framework import serializers

from App.models import User, Group


class UserSerializer(serializers.HyperlinkedModelSerializer):
    class Meta:
        model = User
        fields = ('url', 'username', 'email', 'groups')

class GroupSerializer(serializers.HyperlinkedModelSerializer):
    class Meta:
        model = Group
        fields = ('url', 'name')

3，在views里写视图函数（类基础函数）

from django.contrib.auth.models import User, Group
from django.views.generic import ListView, DetailView
from rest_framework import viewsets

from App.models import Book
from App.serializers import UserSerializer, GroupSerializer


class HelloListView(ListView):
    template_name = 'hello_list.html'
    queryset = Book.objects.all()

class BookDetail(DetailView):
    template_name = 'book_detail.html'
    queryset = Book.objects.all()

class UserViewSet(viewsets.ModelViewSet):
    queryset = User.objects.all()
    serializer_class = UserSerializer

class GroupViewSet(viewsets.ModelViewSet):
    queryset = Group.objects.all()
    serializer_class = GroupSerializer

4，urls的配置：

利用序列化创建url的方式

from App.views import UserViewSet, GroupViewSet
from rest_framework import routers

router = routers.DefaultRouter()
router.register('users', UserViewSet)
router.register('groups', GroupViewSet)

在系统里的url配置：

from App.urls import router
path('app/', include(router.urls)),