django web项目,前端上传控件用的是uploadify。
文件上传 - 后台view 的 Python代码如下:
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@csrf_exempt
@require_http_methods ([ "POST" ])
def uploadFiles(request):
try :
user = request.session.get( 'user' )
allFimeNames = ""
#获取所有上传文件
files = request.FILES.getlist( "file" )
for file in files:
# 获取文件名 解析文件后缀 获取新文件名
oldName = file .name
filename = str ( int (time.time() * 10 )) + "." + oldName.split( "." )[ 1 ]
now = datetime.now()
filePath = os.path.join( "developmentTask" , str (user.get( "userId" )) + "-" + now.strftime( '%Y-%m-%d' ))
dirpath = os.path.join(settings.UPLOADFILES_DIRS , filePath)
#写入服务器
if not os.path.exists(dirpath):
os.makedirs(dirpath)
newFilePath = os.path.join(dirpath, filename)
with open (newFilePath, 'wb+' ) as destination:
for chunk in file .chunks():
destination.write(chunk)
#返回新文件名 多个用逗号隔开
allFimeNames = os.path.join(filePath,filename)
except Exception:
return JsonResponse(data = { 'error' : "系统异常" }, status = 400 )
return JsonResponse(data = { 'filePath' : allFimeNames})
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request.FILES.getlist("file")此处的file 是前端页面的文件提交的名称,可以在uploadify中配置。
文件下载:
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@csrf_exempt
@require_http_methods ([ "GET" ])
def downloadFile(request):
filePath = request.GET.get( "filepath" )
fileName = request.GET.get( "filename" )
file_name = os.path.join(settings.UPLOADFILES_DIRS, filePath)
if os.path.exists(file_name):
def file_iterator(file_name, chunk_size = 512 ):
with open (file_name) as f:
while True :
c = f.read(chunk_size)
if c:
yield c
else :
break
response = StreamingHttpResponse(file_iterator(file_name))
response[ 'Content-Type' ] = 'application/octet-stream'
response[ 'Content-Disposition' ] = 'attachment;filename="{0}"' . format (fileName)
return response
response = StreamingHttpResponse( "文件不存在!" )
response[ 'Content-Type' ] = 'application/octet-stream'
response[ 'Content-Disposition' ] = 'attachment;filename="{0}"' . format ("")
return response
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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服务器之家。