Django文件上传后，返回带域名URL地址的代码

class SKUImage(BaseModel):    sku = models.ForeignKey(SKU, on_delete=models.CASCADE, verbose_name='sku')    image = models.ImageField(verbose_name='图片')  # 存储图片
    class Meta:        db_table = 'tb_sku_image'
    def __str__(self):        return '%s %s' % (self.sku.name, self.id)

from django.core.files.storage import Storage
class UrlStorage(Storage):    def _open(self,name,mode='rb'):        # 打开django本地文件        pass    def _save(self,name,content,max_length=None):        # 上传图片        pass    # 给返回的图片标识加上前缀    def url(self, name):        return "http://image.mysite.site:8888/" + name

# 指定自定义的Django文件存储类DEFAULT_FILE_STORAGE = 'utils.UrlStorage' 

class ImageUploadView(generic.View):    http_method_names = ["post"]
    def post(self, request, **kwargs):        """        Uploads a file and send back its URL to CKEditor.        """        uploaded_file = request.FILES["upload"]
        backend = get_backend()
        ck_func_num = request.GET.get("CKEditorFuncNum")        if ck_func_num:            ck_func_num = escape(ck_func_num)
        filewrapper = backend(storage, uploaded_file)        allow_nonimages = getattr(settings, "CKEDITOR_ALLOW_NONIMAGE_FILES", True)        # Throws an error when an non-image file are uploaded.        if not filewrapper.is_image and not allow_nonimages:            return HttpResponse(                """                <script type='text/javascript'>                window.parent.CKEDITOR.tools.callFunction({}, '', 'Invalid file type.');                </script>""".format(                    ck_func_num                )            )
        filepath = get_upload_filename(uploaded_file.name, request)
        saved_path = filewrapper.save_as(filepath)
        url = utils.get_media_url(saved_path)
        if ck_func_num:            # Respond with Javascript sending ckeditor upload url.            return HttpResponse(                """            <script type='text/javascript'>                window.parent.CKEDITOR.tools.callFunction({}, '{}');            </script>""".format(                    ck_func_num, url                )            )        else:            _, filename = os.path.split(saved_path)            retdata = {"url": url, "uploaded": "1", "fileName": filename}            return JsonResponse(retdata)
......
def get_files_browse_urls(user=None):    """    Recursively walks all dirs under upload dir and generates a list of    thumbnail and full image URL's for each file found.    """    files = []    for filename in get_image_files(user=user):        src = utils.get_media_url(filename)        if getattr(settings, "CKEDITOR_IMAGE_BACKEND", None):            if is_valid_image_extension(src):                thumb = utils.get_media_url(utils.get_thumb_filename(filename))            else:                thumb = utils.get_icon_filename(filename)            visible_filename = os.path.split(filename)[1]            if len(visible_filename) > 20:                visible_filename = visible_filename[0:19] + "..."        else:            thumb = src            visible_filename = os.path.split(filename)[1]        files.append(            {                "thumb": thumb,                "src": src,                "is_image": is_valid_image_extension(src),                "visible_filename": visible_filename,            }        )
    return files

url = utils.get_media_url(saved_path)替换成url = 'http://127.0.0.1:8000'+ utils.get_media_url(saved_path)src = utils.get_media_url(filename)替换成src = 'http://127.0.0.1:8000'+ utils.get_media_url(filename)