Python Django：如何正确加载不在媒体|根目录|文件字段中的文件？

在我的Django项目中，我有一个应用程序，我想在其中加载不在MEDIA_ROOT中的文件。我使用

storage

属性来更改位置，但它会引发错误

我使用了next代码，但在尝试加载文件时出错。我如何解决这个问题

设置。py:

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

from django.core.files.storage import FileSystemStorage
from os import environ

PRODUCT_STORAGE = FileSystemStorage(location=environ.get('PRODUCT_STORAGE_PATH'))

def product_file_upload_path(instance, filename):
    if instance.category=="1":
        path = '/category_1/' + '/%s' % filename
        return path
    elif instance.category=="2":
        path = '/category_2/' + '%s' % filename
        return path
    else:
        path = '%s' % filename
        return path

class Product(models.Model):
    file = models.FileField(
        max_length=255,
        blank=True,
        null=True,
        validators=[validate_file_extension],
        storage=PRODUCT_STORAGE,
        upload_to=product_file_upload_path,

    )

The joined path (/category_1/test.pdf) is located outside of the base path component (/other_folder)

型号。py:

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

from django.core.files.storage import FileSystemStorage
from os import environ

PRODUCT_STORAGE = FileSystemStorage(location=environ.get('PRODUCT_STORAGE_PATH'))

def product_file_upload_path(instance, filename):
    if instance.category=="1":
        path = '/category_1/' + '/%s' % filename
        return path
    elif instance.category=="2":
        path = '/category_2/' + '%s' % filename
        return path
    else:
        path = '%s' % filename
        return path

class Product(models.Model):
    file = models.FileField(
        max_length=255,
        blank=True,
        null=True,
        validators=[validate_file_extension],
        storage=PRODUCT_STORAGE,
        upload_to=product_file_upload_path,

    )

The joined path (/category_1/test.pdf) is located outside of the base path component (/other_folder)

错误：

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

from django.core.files.storage import FileSystemStorage
from os import environ

PRODUCT_STORAGE = FileSystemStorage(location=environ.get('PRODUCT_STORAGE_PATH'))

def product_file_upload_path(instance, filename):
    if instance.category=="1":
        path = '/category_1/' + '/%s' % filename
        return path
    elif instance.category=="2":
        path = '/category_2/' + '%s' % filename
        return path
    else:
        path = '%s' % filename
        return path

class Product(models.Model):
    file = models.FileField(
        max_length=255,
        blank=True,
        null=True,
        validators=[validate_file_extension],
        storage=PRODUCT_STORAGE,
        upload_to=product_file_upload_path,

    )

The joined path (/category_1/test.pdf) is located outside of the base path component (/other_folder)

---

删除前导斜杠并使用

'category_1/'

和

'category_2/'

您还需要从

'/%s'

中删除斜杠，否则您将在路径中得到

/

。您可以使用

os.path.join（）

来防止这样的错误

import os
path = os.path.join('category1', filename)

---

我已经发现问题了。正如你所说，问题出在斜杠上。不管怎样，你能把你的答案贴在帖子上吗（不像评论），我会记下来的，兄弟；）