Python 从werkzeug.datastructures.FileStorage计算md5,但将对象另存为文件是空的
不幸的是,hashlib.md5之后的文件md5name+'.pdf'是空的Python 从werkzeug.datastructures.FileStorage计算md5,但将对象另存为文件是空的,python,flask,md5,Python,Flask,Md5,不幸的是,hashlib.md5之后的文件md5name+'.pdf'是空的 有没有办法从文件中获取md5并保存整个文件?因为您已经对文件流执行了读取,所以需要查找返回到文件的开头才能成功保存它 @app.route('/upload', methods=['GET', 'POST']) def upload_file(): if form.validate_on_submit(): #get pdf file pdffile = form.pdfuplo
有没有办法从文件中获取md5并保存整个文件?因为您已经对文件流执行了
读取
,所以需要查找
返回到文件的开头才能成功保存它
@app.route('/upload', methods=['GET', 'POST'])
def upload_file():
if form.validate_on_submit():
#get pdf file
pdffile = form.pdfupload.data
#next line causes exception
filemd5 = hashlib.md5()
filemd5.update(pdffile.read())
filemd5name = filemd5.hexdigest()
#next save file
pdffile.save(filemd5name+'.pdf')
@app.route('/upload', methods=['GET', 'POST'])
def upload_file():
if form.validate_on_submit():
#get pdf file
pdffile = form.pdfupload.data
#next line causes exception
filemd5 = hashlib.md5()
filemd5.update(pdffile.read())
filemd5name = filemd5.hexdigest()
#next save file
pdffile.seek(0)
pdffile.save(filemd5name+'.pdf')