如何使用Python Flask重置HTML表单？

Question

I'm building a very simple web app (using Python Flask) that will display some images to the user and get some response from the user. 我正在构建一个非常简单的Web应用程序（使用Python Flask），该应用程序将向用户显示一些图像并从用户那里得到一些响应。

Below is my code (ignoring the other parts of my code not related to this question): 以下是我的代码（忽略与该问题无关的代码其他部分）：

    @app.route('/gallery',methods=['GET','POST'])
   def get_gallery():
        image_names = os.listdir(r'C:\Users\xxxvn\images') 
        b=[str(i)+"|"+str(request.form.get(i)) for i in image_names]
        print (b)            
    return render_template("gallery.html", image_names=image_names)

HTML HTML

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css"
          integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">

</head>
<body>


<div class="container">

    <div class="row">

        <div class="col-lg-12">
            <h1 class="page-header">Gallery</h1>
        </div>
        {{image_names}}
        <hr>
        <form method="POST">
        {% for image_name in image_names %}
        <div class="col-lg-3 col-md-4 col-xs-6 thumb">
            <img class="img-responsive" src=" {{url_for('send_image', filename=image_name)}}">
            <input type="radio" name={{image_name}} id="radio1" value="YES" />YES<br>
            <input type="radio" name={{image_name}} id="radio2" value="NO"/>NO<br>          
            <hr>
        </div>
        {% endfor %}
        <input type="submit" name="submit_button" value="SUBMIT"/>
        </form>
    </div>

</div>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"
        integrity="sha384-0mSbJDEHialfmuBBQP6A4Qrprq5OVfW37PRR3j5ELqxss1yVqOtnepnHVP9aJ7xS"
        crossorigin="anonymous"></script> 
</body>
</html>

My current app 我当前的应用

我当前的应用

Question: I want to reset the form as soon as the user hits submit and capture the output in list "B" . 问题：我想在用户点击“提交”并在列表“ B”中捕获输出后立即重置表单。 The form should not be resubmitted with old values if the user hits refresh. 如果用户单击刷新，则不应使用旧值重新提交该表单。

Answer 1

Do a request method check and put in your capture login in it. 进行请求方法检查，并在其中输入捕获登录名。

from flask import request

@app.route('/gallery',methods=['GET','POST'])
def get_gallery():
    image_names = os.listdir(r'C:\Users\xxxvn\images')
    if request.method == "POST":
        b=[str(i)+"|"+str(request.form.get(i)) for i in image_names]
        print (b)          
    return render_template("gallery.html", image_names=image_names)

如何使用Python Flask重置HTML表单？

问题描述

HTML HTML

My current app 我当前的应用

1 个解决方案

解决方案1
1 已采纳 2019-03-20 06:06:38

如何使用Python Flask重置HTML表单？

问题描述

HTML HTML

My current app 我当前的应用

1 个解决方案

解决方案1 1 已采纳 2019-03-20 06:06:38

解决方案1
1 已采纳 2019-03-20 06:06:38