利用flask-wtf验证上传的文件
upload.html文件：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>上传文件</title> </head> <body> <form action="" method="post" enctype="multipart/form-data"> <table> <tr> <td>头像：</td> <td><input type="file" name="pichead"></td> </tr> <tr> <td>描述：</td> <td><input type="text" name="desc"></td> </tr> <tr> <td></td> <td><input type="submit" value="提交"></td> </tr> </table> </form> </body> </html>
formscheck.py文件：
from wtforms import Form,FileField,StringField from wtforms.validators import InputRequired from flask_wtf.file import FileRequired,FileAllowed class UploadForm(Form): pichead = FileField(validators=[FileRequired(),FileAllowed(['jpg','png','gif'])]) desc = StringField(validators=[InputRequired()])
python启动文件：
from flask import Flask,request,render_template
import os
from werkzeug.utils import secure_filename
from formscheck import UploadForm
from werkzeug.datastructures import CombinedMultiDict
app = Flask(__name__)
UPLOAD_PATH = os.path.join(os.path.dirname(__file__),'images')
#利用flask-wtf验证上传的文件
@app.route('/upload/',methods=['GET','POST'])
def upload():
if request.method == 'GET':
return render_template('upload.html')
else:
form = UploadForm(CombinedMultiDict([request.form,request.files]))
if form.validate():
# desc = request.form.get("desc")
# pichead = request.files.get("pichead")
desc = form.desc.data
pichead = form.pichead.data
filename = secure_filename(pichead.filename)
pichead.save(os.path.join(UPLOAD_PATH,filename))
print(desc)
return '文件上传成功'
else:
print(form.errors)
return "文件上传失败"
if __name__ == '__main__':
app.run(debug=True)
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。
