使用Django怎么实现文件上传下载功能-创新互联
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创建项目：
django-admin startproject file_upload cd file_upload python manage.py startapp uploader
目录结构:
0.settings.py
LANGUAGE_CODE = 'zh-Hans' TIME_ZONE = 'Asia/Shanghai' USE_I18N = True USE_L10N = True USE_TZ = False
1.urls.py
父：
from django.contrib import admin
from django.urls import path, include
urlpatterns = [
path('admin/', admin.site.urls),
path('uploader/', include('uploader.urls'))
]子：
from django.contrib import admin
from django.urls import path, include
from . import views
app_name = 'uploader'
urlpatterns = [
path('', views.upload, name='upload'), # 上传
path('list/', views.list), # 列表
path('download/', views.download, name='download'), # 下载
path('delete/', views.delete, name='delete'), # 删除
] 2.models.py
from django.db import models from django.utils import timezone ''' 文件记录 ''' class FileInfo(models.Model): file_name = models.CharField(max_length=500) file_size = models.DecimalField(max_digits=10, decimal_places=0) file_path = models.CharField(max_length=500) upload_time = models.DateTimeField(default=timezone.now())
3.forms.py
from django import forms
'''
上传表单
'''
class UploadForm(forms.Form):
file = forms.FileField(
widget=forms.ClearableFileInput(attrs={'multiple': True}), # 支持多文件上传
label='选择文件...',
help_text='大100M'
)4.views.py
from django.shortcuts import render
from django.http import HttpResponseRedirect
from django.http import HttpResponseRedirect
from django.http import FileResponse
from django.template import RequestContext
from django.urls import reverse
from django.utils.http import urlquote
from .models import FileInfo
from .forms import UploadForm
import os
# 上传文件
def upload(request):
# Handle file upload
if request.method == 'POST':
form = UploadForm(request.POST, request.FILES)
if form.is_valid():
files = request.FILES.getlist('file')
for f in files:
file_info = FileInfo(file_name=f.name, file_size=1 if 0 < f.size < 1024 else f.size / 1024, file_path=os.path.join('D:\\upload', f.name))
file_info.save()
# 上传
destination = open(os.path.join("D:\\upload", f.name), 'wb+')
for chunk in f.chunks():
destination.write(chunk)
destination.close()
# 返回上传页
return HttpResponseRedirect('/uploader/list')
else:
form = UploadForm() # A empty, unbound form
return render(request, 'uploader/upload.html', {'form': form})
# 文件列表
def list(request):
file_infos = FileInfo.objects.all()
return render(request, 'uploader/list.html', {'file_infos': file_infos})
# 下载文件
def download(request, id):
file_info = FileInfo.objects.get(id=id)
print('下载的文件名：' + file_info.file_name)
file = open(file_info.file_path, 'rb')
response = FileResponse(file)
response['Content-Disposition'] = 'attachment;filename="%s"' % urlquote(file_info.file_name)
return response
# 删除文件
def delete(request, id):
file_info = FileInfo.objects.get(id=id)
file_info.delete()
file_infos = FileInfo.objects.all()
return HttpResponseRedirect('/uploader/list')关于使用Django怎么实现文件上传下载功能就分享到这里了，希望以上内容可以对大家有一定的帮助，可以学到更多知识。如果觉得文章不错，可以把它分享出去让更多的人看到。
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