python3 flask实现文件上传功能
本文实例为大家分享了python3-flask文件上传操作的具体代码，供大家参考，具体内容如下
#-*-coding:utf-8-*-
importos
importuuid
importplatform
fromflaskimportFlask,request,redirect,url_for
fromwerkzeug.utilsimportsecure_filename
ifplatform.system()=="Windows":
slash='\\'
else:
platform.system()=="Linux"
slash='/'
UPLOAD_FOLDER='upload'
ALLOW_EXTENSIONS=set(['html','htm','doc','docx','mht','pdf'])
app=Flask(__name__)
app.config['UPLOAD_FOLDER']=UPLOAD_FOLDER
#判断文件夹是否存在，如果不存在则创建
ifnotos.path.exists(UPLOAD_FOLDER):
os.makedirs(UPLOAD_FOLDER)
else:
pass
#判断文件后缀是否在列表中
defallowed_file(filename):
return'.'infilenameand\
filename.rsplit('.',1)[1]inALLOW_EXTENSIONS
@app.route('/',methods=['GET','POST'])
defupload_file():
ifrequest.method=='POST':
#获取post过来的文件名称，从name=file参数中获取
file=request.files['file']
iffileandallowed_file(file.filename):
#secure_filename方法会去掉文件名中的中文
filename=secure_filename(file.filename)
#因为上次的文件可能有重名，因此使用uuid保存文件
file_name=str(uuid.uuid4())+'.'+filename.rsplit('.',1)[1]
file.save(os.path.join(app.config['UPLOAD_FOLDER'],file_name))
base_path=os.getcwd()
file_path=base_path+slash+app.config['UPLOAD_FOLDER']+slash+file_name
print(file_path)
returnredirect(url_for('upload_file',filename=file_name))
return'''
UploadnewFile
UploadnewFile
'''
if__name__=="__main__":
app.run(host='0.0.0.0',port=5000)
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毛票票。