INSTALLED_APPS = [

    '...',

    'rest_framework',

]

REST_FRAMEWORK = {

	# Use Django's standard `django.contrib.auth` permissions,

	# or allow read-only access for unauthenticated users.

	'DEFAULT_PERMISSION_CLASSES': [

		'rest_framework.permissions.DjangoModelPermissionsOrAnonReadOnly'

	]

}

# models.py中有个User类，类下有'username', 'password'字段

from crm import models

from rest_framework import serializers

class UserSerializer(serializers.HyperlinkedModelSerializer):

    # 序列化哪个类以及其类下的字段

    class Meta:

        model = models.User  # 序列化models中User类

        fields = ( 'username', 'password',)  # 序列化字段，此处无外键，有外键的话需要另写对应的序列化类

from rest_framework import viewsets

from crm.rest_serializer import UserSerializer

from crm import models

class UserViewSet(viewsets.ModelViewSet):

    queryset = models.User.objects.all()  # 取User表所有数据，变量名queryset固定

    serializer_class = UserSerializer	# 给UserSerializer类序列化，变量名serializer_class固定

from django.conf.urls import url,include

from rest_framework import routers

from crm.rest_views import UserViewSet 

router = routers.DefaultRouter()		# 实例

router.register(r'users', UserViewSet)	# 注册

urlpatterns = [

    url(r'^api/', include(router.urls)),

]