DjangoRestFramework类序列化器缺少“Meta”属性？

我想在 django app中使用DjangoRestframework,但是在调用它时会出错？

打电话给我,我回复我：

Exception Type: AssertionError
Exception Value: Class Crawlerserializers missing "Meta" attribute

但我在序列化器类中编写了Meta Class

请帮我

serializers.py文件：

from rest_framework import serializers
from models import *

class Crawlerserializers(serializers.Modelserializer):
    class Meta:
        model = Crawler
        fields = ('source','category','template','url')

我的View.py文件：

from rest_framework import status
 from rest_framework.decorators import api_view
 from rest_framework.response import Response
 from models import *
 from serializers import *
 # Create your views here.
 @api_view(['GET','POST'])
 def crawler_list(request):
     '''
     list all task,or create a new task.
     '''
     if request.method == 'GET':
         crawler = Crawler.objects.all()
         serializer = Crawlerserializers(crawler)
         return Response(serializer.data)
     elif request.method == "POST":
         serializer = Crawlerserializers(data=request.Data)
         if serializer.is_valid():
             serializer.save()
             return Response(serializer.data,status=status.http_201_CREATED)
         else:
             return Response(serializer.errors,status=status.http_400_BAD_requEST)

怎么@L_674_8@？