Django REST Framework文件上传导致“不支持的媒体类型'multipart / form-data'”错误

我是django和Django REST
Framework的新手。我有以下序列化程序类，用于与其他信息一起上传文件。但是，当我使用上传的文件运行API端点时，结果是这样的：

http 415 Unsupported Media Type
Allow: POST,OPTIONS
Content-Type: application/json
Vary: Accept

{
    "detail": "Unsupported media type \"multipart/form-data; boundary=----WebKitFormBoundaryybZ07gjZAqvcsZw3\" in request."
}

我通过谷歌搜索努力解决了这个问题，但无法解决，因此这里是我的序列化程序和API视图。

序列化器：

class Exampleserializer(serializers.serializer):

    example_id = serializers.IntegerField()
    description = serializers.CharField(allow_blank=TruE)
    example_file = serializers.FileField(allow_empty_file=TruE)

    def create_requirement_line(self):
        request = self.context['request']

        requirement_line = Exampleservice().example_method(
            example_id=self.validated_data['example_id'],description=self.validated_data['description'],example_file=self.validated_data['example_file']
    )
    return requirement_line

视图：

 class requirementLineAPIView(BaseCreateAPIView):

    serializer_class = Exampleserializer
    parser_classes = (FormParser,)

    def post(self,request,format=None,*args,**kwargs):
        serializer = self.get_serializer(data=request.data)

        if serializer.is_valid():
            try:
                example_variable = serializer.example_method()
                return Response(example_variable,status=status.http_200_OK)

            except ValidationError as e:
                return Response(e.message,status=status.http_400_BAD_requEST)

        return Response(serializer.errors,status=status.http_400_BAD_requEST)