Python 我返回带有“status=HTTP\u 404\u NOT\u FOUND”的响应，但找到201

在views.py中，我返回状态为HTTP\u 404\u NOT\u FOUND的响应：

class CloudServerCreateAPIView(CreateAPIView):
    serializer_class = CloudServerCreateSerializer
    permission_classes = []
    queryset = CloudServer.objects.all()

    def perform_create(self, serializer):

        return Response(data="There is no data left.", status=HTTP_404_NOT_FOUND, exception=Exception())

        serializer.save()

但是当我请求API时，我得到的是创建的

HTTP201

，而不是

404

：

POST /api/user_productmanage/cloudserver/create/
HTTP 201 Created
Allow: POST, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "expiration_time": "2017-12-11T11:11:11+08:00",
    "profile": "asdas",
    "buytime": 1,
    "availablearea": 2
}

---

您的404逻辑不应存在于perform_create中。执行创建主要用于注入您在别处计算的数据或特定于用户的数据

例如

serializer.save（user=self.request.user，date\u time=datetime.now（））

尝试将逻辑移动到

create

或

post

方法。我的建议是将其移动到

post

class CloudServerCreateAPIView(CreateAPIView):
    serializer_class = CloudServerCreateSerializer
    permission_classes = []
    queryset = CloudServer.objects.all()

    def create(self, request, *args, **kwargs):
        # Your reason for 404
        # if reason:
        #     # return Response(status=status.HTTP_404_NOT_FOUND)
        serializer = self.get_serializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        self.perform_create(serializer)
        headers = self.get_success_headers(serializer.data)
        return Response(serializer.data, status=status.HTTP_201_CREATED, headers=headers)

    def post(self, request, *args, **kwargs):
        # Your reason for 404
        if reason:
            return Response(data="There is no data left.", status=HTTP_404_NOT_FOUND, exception=Exception())
        return self.create(request, *args, **kwargs)

---

您的404逻辑不应存在于perform_create中。执行创建主要用于注入您在别处计算的数据或特定于用户的数据

例如

serializer.save（user=self.request.user，date\u time=datetime.now（））

尝试将逻辑移动到

create

或

post

方法。我的建议是将其移动到

post

class CloudServerCreateAPIView(CreateAPIView):
    serializer_class = CloudServerCreateSerializer
    permission_classes = []
    queryset = CloudServer.objects.all()

    def create(self, request, *args, **kwargs):
        # Your reason for 404
        # if reason:
        #     # return Response(status=status.HTTP_404_NOT_FOUND)
        serializer = self.get_serializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        self.perform_create(serializer)
        headers = self.get_success_headers(serializer.data)
        return Response(serializer.data, status=status.HTTP_201_CREATED, headers=headers)

    def post(self, request, *args, **kwargs):
        # Your reason for 404
        if reason:
            return Response(data="There is no data left.", status=HTTP_404_NOT_FOUND, exception=Exception())
        return self.create(request, *args, **kwargs)