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[英]Calculate md5 from werkzeug.datastructures.FileStorage without saving the object as file
[英]Calculate md5 from werkzeug.datastructures.FileStorage, but saving the object as file is empty
@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')
不幸的是,在hashlib.md5之后,文件md5name +'。pdf'為空。
有什么辦法從文件中獲取md5並保存整個文件嗎?
因為您進行了read
的文件流,你需要seek
回到文件的開始成功地保存它。
@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.seek(0)
pdffile.save(filemd5name+'.pdf')
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