烧瓶:request.form.getlist将不返回任何条目 [英] Flask: request.form.getlist won't return any entries
问题描述
由于某种原因，我无法获得我在4周前工作的东西:/ 我有一个网站，我在其中通过jQuery添加了一个检查按钮，我需要Flask来读出是否被检查. 我举了一个简短的例子，但仍然没有用.
for some reason I can't get this thing I worked 4 weeks ago working :/ I have a site where I add a checkbutton via jQuery and I need Flask to read out if it's checked or not. I made a minmial example, but it still doesn not work.
此处提供代码:
post.htm
<html>
<body>
<form name="formular" action='http://127.0.0.1:5000/formtest' method="post">
<input type="checkbox" value="test1">
<INPUT type ="submit" id="send" value="Do it"/>
</form>
</body>
</html>
webserver.py
@app.route('/formtest', methods=['POST'])
def formtest():
checklist = request.form.getlist('test1')
if checklist:
check = True
else:
check = False
if check:
return("checked")
else:
return("not checked")
它总是返回未检查"，但我不明白为什么.清单始终是一个空清单.错误在哪里?
It always returns "not checked", but I don't get why. Checklist is always an empty list. Where's the error?
提前谢谢！
推荐答案
您的复选框没有name属性；它永远不会作为POST的一部分发送.给它一个name属性以及一个值:
Your checkbox has no name attribute; it'll never be sent as part of the POST. Give it a name attribute as well as a value:
<input type="checkbox" name="test1" value="true">
在此不要使用MultiDict.getlist()；您可以使用 MultiDict.get() 进行默认和类型转换相反:
Don't use MultiDict.getlist() here; you can use MultiDict.get() with a default and type conversion instead:
@app.route('/formtest', methods=['POST'])
def formtest():
check = request.form.get('test1', default=False, type=bool)
return 'checked' if check else 'not checked'
这篇关于烧瓶:request.form.getlist将不返回任何条目的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
