我被困在我的應用程式上的遞回錯誤。該應用程式基本上是一個基于 python flask 的投資組合生成器。頁面是使用表單輸入和 jinja 生成的。這是我的第一個大專案，我是初學者，我真的找不到這里有什么問題。我認為問題可能出在表單上，??在我重新加載生成的頁面或回傳表單后發生錯誤，并且它一直持續到我重新啟動 PyCharm（不僅是專案本身）。
主檔案
from flask import Flask, \
render_template, \
redirect, \
url_for, \
request, \
session \
import requests
import os
from flask_session.__init__ import Session
UPLOAD_FOLDER = 'static/uploaded_images'
ALLOWED_EXTENSIONS = {'txt', 'pdf', 'png', 'jpg', 'jpeg', 'gif'}
app = Flask(__name__)
app.debug = True
app.config['IMAGE_UPLOADS'] = UPLOAD_FOLDER
app.config["SESSION_TYPE"] = "filesystem"
Session(app)
@app.route('/')
def index():
return redirect('/main')
@app.route('/main')
def main():
return render_template('index.html')
@app.route('/form')
def form():
return render_template('form.html')
@app.route('/mainPage', methods=['POST'])
def mainPage():
if request.method == 'POST':
session['portfolioName'] = request.form['portfolioName']
if request.form['colors'] == 'light':
session['backgroundColor'] = '#FFFFFF'
session['fontColor'] = '#606367'
elif request.form['colors'] == 'dark':
session['backgroundColor'] = '#757575'
session['fontColor'] = '#E8D4D4'
else:
session['backgroundColor'] = request.form['background']
session['fontColor'] = request.form['font']
gridLayout = request.form['grid']
gridLayout = gridLayout.split("x", 1)
columns = int(gridLayout[0])
session['language'] = request.form['language']
session['menuElementsQty'] = int(request.form['menuElements'])
session['menuItems'] = []
session['siteContent'] = []
if session['menuElementsQty'] == 4:
session['menuItems'].append(request.form['menuItem1'])
session['menuItems'].append(request.form['menuItem2'])
session['menuItems'].append(request.form['menuItem3'])
session['menuItems'].append(request.form['menuItem4'])
session['siteContent'].append(request.form['description2'])
session['siteContent'].append(request.form['description3'])
session['siteContent'].append(request.form['description4'])
elif session['menuElementsQty'] == 3:
session['menuItems'].append(request.form['menuItem1'])
session['menuItems'].append(request.form['menuItem2'])
session['menuItems'].append(request.form['menuItem3'])
session['siteContent'].append(request.form['description2'])
session['siteContent'].append(request.form['description3'])
elif session['menuElementsQty'] == 2:
session['menuItems'].append(request.form['menuItem1'])
session['menuItems'].append(request.form['menuItem2'])
session['siteContent'].append(request.form['description2'])
elif session['menuElementsQty'] == 1:
session['menuItems'].append(request.form['menuItem1'])
filenames=[]
session['images'] = request.files.getlist('image')
for image in session['images']:
image.save(os.path.join(app.config['IMAGE_UPLOADS'], image.filename))
filenames.append(image.filename)
imageQty = len(session['images'])
# url = 'some URL to post later'
# html_output_name = 'test.htm'
# req = requests.get(url, 'html.parser')
#
# with open(html_output_name, 'w') as f:
# f.write(req.text)
# f.close()
session.modified = True
return render_template('mainPage.html', images=filenames, menuItems=session['menuItems'],menuElementsQty=session['menuElementsQty'], imageQty=imageQty, columns=columns, portfolioName=session['portfolioName'], language=session['language'], backgroundColor=session['backgroundColor'], fontColor=session['fontColor'])
return render_template('form.html')
@app.route('/secondPage')
def secondPage():
return render_template('secondPage.html', menuItems=session['menuItems'], menuElementsQty=session['menuElementsQty'], backgroundColor=session['backgroundColor'], fontColor=session['fontColor'], language=session['language'], siteContent=session['siteContent'])
@app.route('/thirdPage')
def thirdPage():
return render_template('thirdPage.html', menuItems=session['menuItems'], menuElementsQty=session['menuElementsQty'], backgroundColor=session['backgroundColor'], fontColor=session['fontColor'], language=session['language'], siteContent=session['siteContent'])
@app.route('/fourthPage')
def fourthPage():
return render_template('fourthPage.html', menuItems=session['menuItems'], menuElementsQty=session['menuElementsQty'], backgroundColor=session['backgroundColor'], fontColor=session['fontColor'], language=session['language'], siteContent=session['siteContent'])
if __name__ == "__main__":
app.run(host='0.0.0.0', port='5000', debug=True)
表單.html
<form action="{{ url_for('mainPage') }}" method="post" enctype="multipart/form-data">
<!--Name-->
<div class="row">
<details>
<summary>Podaj nazw? swojej strony.</summary>
<h5>To mo?e by? Twoje imi? i nazwisko, pseudonim artystyczny, cokolwiek, co b?dzie Twoim znakiem rozpoznawczym.</h5>
</details>
<div class="col">
<input type="text" name="portfolioName"/>
</div>
</div>
<!--Colors-->
<div class="row radioHidden">
<details>
<summary>Wybierz motyw kolorystyczny.</summary>
<h5>Mo?esz wybra? zarówno jeden z naszych gotowych motywów lub wybra? w?asne kolory.</h5>
</details>
<div class="col-md-5">
<label>
<input type="radio" name="colors" id="light" value="light" checked/>
<img class='img-fluid' src="static/img/light.png">
</label>
</div>
<div class="col-md-5">
<label>
<input type="radio" name="colors" id="dark" value="dark"/>
<img class='img-fluid' src="static/img/dark.png" >
</label>
</div>
<div class="col-md-2">
<label>
<input type="radio" name="colors" id="custom" value="custom"/>
W?asne
</label>
<div class="Box" style="display:none">
<div class="row">
<label>Kolor t?a</label>
<input type="color" name="background" id="background" value="#865555">
</div>
<div class="row">
<label>Kolor tekstu</label>
<input type="color" name="font" id="font" value="#ECE2E2">
</div>
</div>
</div>
</div>
<!--Grid style-->
<div class="row radioHidden">
<details>
<summary>Wybierz uk?ad.</summary>
<h5>Obrazy b?d? wy?wietlane w siatce (tzw. grid) w jednym z wybranych uk?adów.</h5>
</details>
<div class="col-md">
<label>
<input type="radio" name="grid" id="3x2" value="3x2"/>
<img class='img-fluid' src="static/img/grid3x2.png">
</label>
</div>
<div class="col-md">
<label>
<input type="radio" name="grid" id="3x3" value="3x3"/>
<img class='img-fluid' src="static/img/grid3x3.png">
</label>
</div>
<div class="col-md">
<label>
<input type="radio" name="grid" id="4x3" value="4x3"/>
<img class='img-fluid' src="static/img/grid4x3.png">
</label>
</div>
</div>
<!--Language-->
<div class="row radioHidden">
<details>
<summary>Wybierz wersj? j?zykow?.</summary>
<h5>Ca?a strona b?dzie dost?pna w jednym z dwóch j?zyków. Pami?taj jednak, ?e tre?ci, które wpisujesz, b?d? w takim j?zyku, w jakim je napiszesz!</h5>
</details>
<div class="col-md">
<label>
<input type="radio" name="language" id="pl" value="pl"/>
<i class="flag flag-poland"></i>
</label>
<label>
<input type="radio" name="language" id="en" value="en"/>
<i class="flag flag-united-states"></i>
</label>
</div>
</div>
<!--Menu elements-->
<div class="row">
<details>
<summary>Wybierz elementy menu</summary>
<h5>Maksymalnie mo?esz wybra? 4 elementy menu, czyli cztery podstrony, których tre?? b?dziesz uzupe?nia? w dalszych krokach.
Dlaczego akurat cztery? Im bardziej minimalistyczna strona, tym przejrzy?ciej wygl?da i lepiej si? prezentuje!
Spróbuj zmie?ci? swoje tre?ci w tych czterech podstronach.</h5>
</details>
<div class="row">
<div class="row">
<div class="col-md">
Z ilu elementów ma si? sk?ada? menu?
1<input type="radio" name="menuElements" id="1" value="1" checked="checked"/>
2<input type="radio" name="menuElements" id="2" value="2"/>
3<input type="radio" name="menuElements" id="3" value="3"/>
4<input type="radio" name="menuElements" id="4" value="4"/>
</div>
</div>
<div class="row firstPage" style="display:none">
<div class="col-md-3">
Pierwsza podstrona
</div>
<div class="col-md-3">
<input type="text" name="menuItem1" id="menuItem1" value="Galeria"/>
</div>
<div class="col-md-6">
<p>Tu nie wpisujesz swojej tre?ci. Na tej podstronie wy?wietla? si? b?d? Twoje prace.</p>
</div>
</div>
<div class="row secondPage" style="display:none">
<div class="col-md-3">
Druga podstrona
</div>
<div class="col-md-3">
<input type="text" name="menuItem2" id="menuItem2" value="O mnie"/>
</div>
<div class="col-md-6">
<textarea name="description2" id="menuItem2desc" class="bigInput">
<h1>Lorem ipsum dolor sit amet</h1>
<p>consectetur adipiscing elit. Maecenas iaculis tempus finibus. Nullam vehicula egestas leo, dictum ultrices odio sagittis in. Sed ornare nunc nec nulla feugiat, a eleifend magna bibendum. Nam vel lectus vel mi commodo tincidunt. Donec sit amet ullamcorper risus, nec rhoncus nibh. Praesent in lectus ultrices, pellentesque nunc vel, fermentum ipsum. Integer a aliquet erat. Curabitur porta feugiat purus, ac venenatis neque consequat vitae. Praesent pellentesque ex erat, sit amet dictum lacus rhoncus quis. Integer non lobortis lorem, eu finibus ligula. Nulla varius dolor vitae dapibus facilisis. Nam et nulla ut lectus vestibulum commodo eu et diam. Proin id sem turpis. In a enim libero. Integer placerat enim ex, quis lobortis nibh feugiat quis. Nam placerat mollis urna, in aliquam nisi varius id.
<strong>Nulla vitae felis est.</strong> Sed scelerisque, metus non sollicitudin commodo, diam metus hendrerit mauris, quis faucibus turpis neque quis leo. Praesent dapibus magna est, non pharetra diam finibus et. Aenean laoreet ac elit suscipit dictum. Duis in porttitor odio, ut porttitor est. Vestibulum eget auctor enim, non fringilla est. Proin pretium turpis lorem, non blandit felis accumsan nec. Aenean pellentesque risus sit amet massa scelerisque, vitae porttitor nisi placerat.</p>
Nullam ut nisl faucibus, lacinia neque eget, ultricies massa. Proin quis velit at orci blandit vestibulum ut ut libero. Nulla facilisi. Nullam facilisis, ligula id porttitor gravida, nulla velit finibus nunc, finibus sodales tellus risus non risus. Pellentesque lacinia lacinia justo in faucibus. Duis et leo id elit tincidunt molestie ut id ex. Nunc laoreet nisl non mattis interdum. Maecenas id auctor dolor. Donec consequat tellus ornare, vulputate tellus id, pellentesque augue. Donec congue at quam eu elementum. Quisque dapibus mattis enim.
Maecenas ac faucibus neque. Pellentesque a viverra magna. Proin lectus tortor, tempus id consectetur quis, condimentum eget tellus. In ultricies varius nisl ut imperdiet. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; Vivamus ac mi neque. Cras finibus tortor quis elit eleifend placerat. Cras at enim dui. Vestibulum libero massa, eleifend nec rhoncus lacinia, sodales vel ante. Nulla accumsan nisi in sapien tincidunt lacinia. Praesent elit arcu, lobortis et consectetur vitae, tincidunt quis ligula.
Etiam aliquam nibh a volutpat tincidunt. Donec nec scelerisque metus. Vivamus id sapien iaculis, pretium tellus vel, tempor mauris. Ut sit amet luctus neque. Mauris convallis eget velit a faucibus. Sed vestibulum rutrum facilisis. Cras laoreet eu arcu vitae dignissim. </textarea>
</div>
</div>
<div class="row thirdPage" style="display:none">
<div class="col-md-3">
Trzecia podstrona
</div>
<div class="col-md-3">
<input type="text" name="menuItem3" id="menuItem3" value="Kontakt"/>
</div>
<div class="col-md-6">
<textarea name="description3" id="menuItem3desc" class="bigInput">Kontakt
</textarea>
</div>
</div>
<div class="row fourthPage" style="display:none">
<div class="col-md-3">
Czwarta podstrona
</div>
<div class="col-md-3">
<input type="text" name="menuItem4" id="menuItem4" value="..."/>
</div>
<div class="col-md-6">
<textarea name="description4" id="menuItem4desc" class="bigInput">...
</textarea>
</div>
</div>
</div>
</div>
<div class="row">
<details>
<summary>Wrzu? swoje obrazy.</summary>
<h5>Ca?a strona b?dzie dost?pna w jednym z dwóch j?zyków. Pami?taj jednak, ?e tre?ci, które wpisujesz, b?d? w takim j?zyku, w jakim je napiszesz!</h5>
</details>
<input type="file" name="image" accept="image/*" multiple>
<button type="submit" class="btn btn-primary btn-block mb-4">Generuj!</button>
</div>
</form>
生成頁面.html
<!DOCTYPE html>
<html lang="{{ language }}">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.6.3/css/all.css">
<link rel="stylesheet" href="static/css/mdb.min.css" />
<title>{{ portfolioName }}</title>
<style>
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;700&display=swap');
{% include 'styles.css' %}
</style>
</head>
<body>
<div class="container">
<div class="row">
{% include 'headerTemplate.html' %}
<hr>
</div>
{% for image in images: %}
<div class="row mt-4">
{% for column in range(columns): %}
<div class="col">
<div class=" img-overlay-container">
<img class='img-fluid' src="{{ url_for('static', filename = 'uploaded_images/' image) }}" >
<div class="overlay" onclick="openModal();currentSlide(1)">
<div class="text">Hello World</div>
</div>
</div>
</div>
{% endfor %}
</div>
{% endfor %}
<div class="row">
<div class="preview">
<p>This is a preview</p>
<p>To get the package please press the button</p>
</div>
</div>
</div>
<div id="myModal" class="modal">
<span class="close cursor" onclick="closeModal()">×</span>
<div class="modal-content">
{% for image in images: %}
<div class="mySlides">
<img src="{{ url_for('static', filename = '/uploaded_images/' image) }}" style="max-height=100%">
</div>
{% endfor %}
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
<div class="caption-container">
<p id="caption"></p>
</div>
</div>
</div>
<script>
function openModal() {
document.getElementById("myModal").style.display = "block";
}
function closeModal() {
document.getElementById("myModal").style.display = "none";
}
var slideIndex = 1;
showSlides(slideIndex);
function plusSlides(n) {
showSlides(slideIndex = n);
}
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("demo");
var captionText = document.getElementById("caption");
if (n > slides.length) {slideIndex = 1}
if (n < 1) {slideIndex = slides.length}
for (i = 0; i < slides.length; i ) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i ) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className = " active";
captionText.innerHTML = dots[slideIndex-1].alt;
}
</script>
</body>
</html>
錯誤日志
172.22.240.1 - - [24/Apr/2022 13:47:53] "GET / HTTP/1.1" 500 -
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/flask/app.py", line 2463, in __call__
return self.wsgi_app(environ, start_response)
File "/usr/lib/python3/dist-packages/flask/app.py", line 2449, in wsgi_app
response = self.handle_exception(e)
File "/usr/lib/python3/dist-packages/flask/app.py", line 1866, in handle_exception
reraise(exc_type, exc_value, tb)
File "/usr/lib/python3/dist-packages/flask/_compat.py", line 39, in reraise
raise value
File "/usr/lib/python3/dist-packages/flask/app.py", line 2445, in wsgi_app
ctx.push()
File "/usr/lib/python3/dist-packages/flask/ctx.py", line 390, in push
self.session = session_interface.open_session(self.app, self.request)
File "/home/hanuszka/.local/lib/python3.8/site-packages/flask_session/sessions.py", line 344, in open_session
data = self.cache.get(self.key_prefix sid)
File "/home/hanuszka/.local/lib/python3.8/site-packages/cachelib/file.py", line 195, in get
return self.serializer.load(f)
File "/home/hanuszka/.local/lib/python3.8/site-packages/cachelib/serializers.py", line 29, in load
data = pickle.load(f)
File "/home/hanuszka/.local/lib/python3.8/site-packages/werkzeug/datastructures.py", line 3034, in __getattr__
return getattr(self.stream, name)
File "/home/hanuszka/.local/lib/python3.8/site-packages/werkzeug/datastructures.py", line 3034, in __getattr__
return getattr(self.stream, name)
File "/home/hanuszka/.local/lib/python3.8/site-packages/werkzeug/datastructures.py", line 3034, in __getattr__
return getattr(self.stream, name)
...
RecursionError: maximum recursion depth exceeded
uj5u.com熱心網友回復：
該堆疊跟蹤表明會話中已保存了一些拒絕反序列化的內容。我看到在會話中保存代碼的唯一不尋常的事情是
session['images'] = request.files.getlist('image')
盡量不要那樣做。
轉載請註明出處，本文鏈接：https://www.uj5u.com/net/463889.html