Django实现文件上传下载功能

Django实现⽂件上传下载功能项⽬介绍
最近学习django，通过⽂件上传下载这个⼩项⽬，总结下常⽤的知识点。

做这个案例我有以下需求：
1.要⽀持⼀次上传多个⽂件
2.⽀持上传后记录上传的数据以及列表展⽰
3.⽀持下载和删除⽂件记录
效果展⽰
数据库记录
开发步骤
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/<id>', views.download, name='download'), # 下载
path('delete/<id>', 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='最⼤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=, file_size=1 if 0 < f.size < 1024 else f.size / 1024, file_path=os.path.join('D:\\upload', )) file_info.save()
# 上传
destination = open(os.path.join("D:\\upload", ), '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')
以上就是本⽂的全部内容，希望对⼤家的学习有所帮助，也希望⼤家多多⽀持。