Django实现文件上传下载功能

站长资源 2025/3/11 佚名

2 0 1

黑松山资源网 Design By www.paidiu.com

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=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')

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。

Django文件上传下载,Django文件下载,Django文件上传

黑松山资源网 Design By www.paidiu.com

广告合作：本站广告合作请联系QQ：858582 申请时备注：广告合作（否则不回）
免责声明：本站资源来自互联网收集,仅供用于学习和交流,请遵循相关法律法规,本站一切资源不代表本站立场,如有侵权、后门、不妥请联系本站删除！