UnicodeDecodeError：'utf-8'编解码器无法解码位置0的字节0xff：Django中的无效起始字节

如何解决UnicodeDecodeError：'utf-8'编解码器无法解码位置0的字节0xff：Django中的无效起始字节

我想通过get请求获取api列表。但是在编写代码后，我发送了get请求，并出现以下错误。

追踪

Traceback (most recent call last):
  File "C:\Users\kurak\AppData\Local\Programs\Python\python38-32\lib\site-packages\django\core\handlers\exception.py",line 34,in inner
    response = get_response(request)
  File "C:\Users\kurak\AppData\Local\Programs\Python\python38-32\lib\site-packages\django\core\handlers\base.py",line 145,in _get_response
    response = self.process_exception_by_middleware(e,request)
  File "C:\Users\kurak\AppData\Local\Programs\Python\python38-32\lib\site-packages\django\core\handlers\base.py",line 143,in _get_response
    response = response.render()
  File "C:\Users\kurak\AppData\Local\Programs\Python\python38-32\lib\site-packages\django\template\response.py",line 105,in render
    self.content = self.rendered_content
  File "C:\Users\kurak\AppData\Local\Programs\Python\python38-32\lib\site-packages\rest_framework\response.py",line 70,in rendered_content
    ret = renderer.render(self.data,accepted_media_type,context)
  File "C:\Users\kurak\AppData\Local\Programs\Python\python38-32\lib\site-packages\rest_framework\renderers.py",line 100,in render
    ret = json.dumps(
  File "C:\Users\kurak\AppData\Local\Programs\Python\python38-32\lib\site-packages\rest_framework\utils\json.py",line 25,in dumps
    return json.dumps(*args,**kwargs)
  File "C:\Users\kurak\AppData\Local\Programs\Python\python38-32\lib\json\__init__.py",line 234,in dumps
    return cls(
  File "C:\Users\kurak\AppData\Local\Programs\Python\python38-32\lib\json\encoder.py",line 199,in encode
    chunks = self.iterencode(o,_one_shot=True)
  File "C:\Users\kurak\AppData\Local\Programs\Python\python38-32\lib\json\encoder.py",line 257,in iterencode
    return _iterencode(o,0)
  File "C:\Users\kurak\AppData\Local\Programs\Python\python38-32\lib\site-packages\rest_framework\utils\encoders.py",line 50,in default
    return obj.decode()
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte

在前面的代码中，我们正常收到它，没有任何解码错误，并且修改后会发生此问题。有什么问题？这是我的代码。

views.py

class CreateReadPostView (ModelViewSet) :
    serializer_class = PostSerializer
    permission_classes = [IsAuthenticated]
    queryset = Post.objects.all()

    def perform_create (self,serializer) :
        serializer.save(author=self.request.user)

    def list (self,request) :
        posts = Post.objects.all()
        data = []

        for post in posts :
            comments = Comment.objects.filter(post=post)

            json = {
                'pk': post.pk,'author': {
                    'email': post.author.email,'username': post.author.username,'profile': post.author.profile
                },'like': post.liker.count,'liker': post.liker,'text': post.text,'images': Image.objects.filter(post=post),'comments_count': comments.count(),'view': post.view,'viewer_liked': None,'tag': post.tag
            }
            data.append(json)

        return Response(data,status=200)

serializers.py

class ImageSerializer (serializers.ModelSerializer) :
    image = serializers.ImageField(allow_null=True,use_url=True)

    class Meta :
        model = Image
        fields = ['image']

class PostSerializer (serializers.ModelSerializer) :
    author = serializers.CharField(source='author.username',read_only=True)
    title = serializers.CharField(allow_null=True)
    text = serializers.CharField(allow_null=True)
    image = ImageSerializer(many=True,allow_null=True,read_only=True)

    class Meta:
        model = Post
        fields = ['pk','author','title','text','like','liker','image','view']

    def validate (self,attrs) :
        title = attrs.get('title','')
        text = attrs.get('text','')
        image = attrs.get('image','')

        error = {}

        if title is None and text is None and image is None :
            error['message'] = '제목,본문,그리고 이미지를 넣어주세요.'
            raise serializers.ValidationError(error)

        if title is None and text is None :
            error['message'] = '제목과 본문을 넣어주세요.'
            raise serializers.ValidationError(error)

        if title is None and image is None :
            error['message'] = '제목과 이미지를 넣어주세요.'
            raise serializers.ValidationError(error)

        if text is None and image is None :
            error['message'] = '본문과 이미지를 넣어주세요.'
            raise serializers.ValidationError(error)

        if title is None  :
            error['message'] = '제목을 넣어주세요.'
            raise serializers.ValidationError(error)

        if text is None :
            error['message'] = '본문을 넣어주세요.'
            raise serializers.ValidationError(error)

        if image is None :
            error['message'] = '이미지를 넣어주세요.'
            raise serializers.ValidationError(error)

        return attrs

    def create (self,validated_data) :
        images_data = self.context['request'].FILES
        post = Post.objects.create(**validated_data)

        for image_data in images_data.getlist('image') :
           Image.objects.create(post=post,image=image_data)
        return post

models.py

from django.db import models
from django.conf import settings

class Post (models.Model):
    author = models.ForeignKey(settings.AUTH_USER_MODEL,on_delete=models.CASCADE,related_name='author',null=True)
    title = models.CharField(max_length=40)
    text = models.TextField(max_length=300)
    tag = models.CharField(max_length=511,null=True)
    view = models.IntegerField(default=0)
    viewer = models.ManyToManyField(settings.AUTH_USER_MODEL,related_name='viewer',blank=True)
    like = models.IntegerField(default=0)
    liker = models.ManyToManyField(settings.AUTH_USER_MODEL,related_name='liker',blank=True)

    def __str__ (self) :
        return self.title

class Image (models.Model) :
    post = models.ForeignKey(Post,on_delete=models.CASCADE)
    image = models.ImageField(null=True,blank=True)

class Comment (models.Model) :
    author = models.ForeignKey(settings.AUTH_USER_MODEL,null=True)
    post = models.ForeignKey(Post,on_delete=models.CASCADE)
    text = models.TextField(max_length=200)