文件系统存储不起作用，当上传 2 张图像时，返回可疑文件操作错误

Question

我有一个可怕的问题。我想上传2张图像，并在通过大量代码运行后获得结果。但是，当我选择(在服务器上(上载这些文件的路径时，我总是会遇到"可疑fileoperation"错误。

API视图

import json
import os
from rest_framework import generics
from rest_framework.response import Response
from rest_framework import permissions
from .ProcessData.FaceRecognition import FaceRecognition
from .ProcessData.OCR import OCR
from .ProcessData.Wanted import Wanted
from identity.models import IdentityCheck
from .serializers import IdentityCheckSerializer
from rest_framework.generics import CreateAPIView
from django.core.files.storage import FileSystemStorage
from django.conf import settings
class IdentityCheckView(CreateAPIView, generics.ListAPIView):
    serializer_class = IdentityCheckSerializer
    permission_classes = [permissions.IsAuthenticated]
    def get_queryset(self):
        request = self.request
        qs = IdentityCheck.objects.all()
        query = self.request.GET.get('q')
        if query is not None:
            qs = qs.filter(name__icontains=query)
        return qs
    def save_fss(self, filename, file):
        mediaRoot = os.path.join(settings.MEDIA_ROOT, 'media/tmp/')
        filename = filename + ".jpg"
        fs = FileSystemStorage(location=mediaRoot)
        if fs.exists(filename):
            os.remove(mediaRoot + filename)
        newFile = fs.save(filename, file)
        uploaded_file_url = mediaRoot + fs.url(newFile)
        return uploaded_file_url
    def post(self, request, *args, **kwargs):
        serializer = self.get_serializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        if(serializer.is_valid()):
            data = serializer.validated_data
            passPhoto = request.FILES['passengerPhoto']
            uploaded_file_url_pass_photo = self.save_fss("passPhoto", passPhoto)
            passPassport = request.FILES['passengerPassport']
            uploaded_file_url_pass_passport = self.save_fss("passPassport", passPassport)

            image = FaceRecognition.imageMatch(uploaded_file_url_pass_photo, uploaded_file_url_pass_passport)
            wanted = Wanted.criminalMatch(uploaded_file_url_pass_photo)
            passport_json = OCR.passportMatch(uploaded_file_url_pass_passport)
            image_json = json.loads(image)
            firstName      = passport_json['names']
            lastName       = passport_json['surname']
            nationality    = passport_json['country']
            birthDate      = passport_json['date_of_birth']
            gender         = passport_json['sex']
            ableToBoard = (wanted==0) and (int(image_json['match'])==1) and passport_json['valid_expiration_date'] and passport_json['valid_date_of_birth']
            serializer.save(agent=self.request.user, firstName=firstName, lastName=lastName, nationality=nationality, birthDate=birthDate, gender=gender, ableToBoard=ableToBoard)
        else:
            return Response({"image": "-1", "passport": "-1", "wanted": "-1"}, status=500)
        return Response({"image": image_json, "passport": passport_json, "wanted": wanted}, status=200)

settings.py

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
DEBUG = True
ALLOWED_HOSTS = ['*']
INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'django.contrib.postgres',
    'django_postgres_extensions',
    'rest_framework',
    'corsheaders',
    'identity',
    'models',
    'admincp',
    'abnormal',
    'language'
]
MIDDLEWARE = [
    'corsheaders.middleware.CorsMiddleware',
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
ROOT_URLCONF = 'IBCS.urls'
TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]
...
STATIC_URL = '/static/'
MEDIA_ROOT = os.path.dirname(BASE_DIR)
MEDIA_URL = '/'
from IBCS.restconf.main import *
from IBCS.apps import *

错误显示：

The joined path (C:UsersKyokoDesktopIBCSservermediatmppassPhoto.jpg) is located outside of the base path component (C:UsersKyokoDesktopIBCSservermediatmp)
Bad Request: /api/check/
"POST /api/check/ HTTP/1.1" 400 20335

由于某些张力问题，该代码在重新安装Django和Python之前运行正常，但是重新安装了所有必需的软件包。

谢谢您的帮助！

django版本：2.2.2Python版本：3.6.7(64位(

Answer 1

太长了

1

MEDIA_ROOT = os.path.dirname(BASE_DIR)
MEDIA_URL = '/'
...
os.path.join(settings.MEDIA_ROOT, 'media/tmp/')

nope，您不应该设置MEDIA_ROOT = BASEDIR，您应该设置

MEDIA_ROOT = os.path.join(os.path.dirname(BASE_DIR), 'media')
MEDIA_URL = '/media/'

并避免将media连接到您想要使用这些文件的任何地方。请注意，在产品上，您应该选择其他一些根文件夹来用于媒体文件 - 项目目录之外。

。

您也应该设置STATIC_ROOT，该CC_3在您的设置中未配置。Py

2

mediaRoot = os.path.join(settings.MEDIA_ROOT, 'media/tmp/')
mediaRoot + filename

不要将path.join与简单的串联混合。在此示例中，您要混合和/分离器(因为您在Windows上(。它会起作用，但不是一个好风格。URL将失败。在这里 - 始终使用os.path.join。请注意，它可以有两个以上的参数。

3

uploaded_file_url = mediaRoot + fs.url(newFile)

medirRoot是一个文件夹，在您的情况下，它将其用作路径分离器，而fs.url是带有/分隔符的URL。因此，您不会在此处获得该文件的URL或完整的路径。是的，它应该通过fs.url将返回部分URL的原因来工作，并且它将部分路径复制到文件...但是，a(FS具有path方法b(为什么如果您上传到上传到恒定路径？

4

if fs.exists(filename):
        os.remove(mediaRoot + filename)

fs可以做delete()，因此请勿混合处理文件的方法。请注意，无论谁以及上传何时和何时，您都会始终覆盖文件。

5

您应该显示完整的错误追溯。但是，我的猜测是：您不应从save_fss返回完整的路径。尝试返回fs.path()，正确配置MEDIA_ROOT，也许应该起作用。