Question

我是python和Flask的新手，我试图在我的计算机上运行此页面中显示的代码： http://runnable.com/UhLMQLffO1YSAADK/handle-a-post-request-in-flask-for-python

这是我遵循的陡峭和代码：

1 - 我已经安装了Flask

2-文件

文件app.py

# We need to import request to access the details of the POST request
# and render_template, to render our templates (form and response)
# we'll use url_for to get some URLs for the app on the templates
from flask import Flask, render_template, request, url_for

# Initialize the Flask application
app = Flask(__name__)

# Define a route for the default URL, which loads the form
@app.route('/')
def form():
    return render_template('form_submit.html')

# Define a route for the action of the form, for example '/hello/'
# We are also defining which type of requests this route is 
# accepting: POST requests in this case
@app.route('/hello/', methods=['POST'])
def hello():
    name=request.form['yourname']
    email=request.form['youremail']
    return render_template('form_action.html', name=name, email=email)

# Run the app :)
if __name__ == '__main__':
  app.run( 
        host="0.0.0.0",
        port=int("80")
  )

文件form_action.html

 <html>
    <head>
        <title>Handle POST requests with Flask</title>
        <link rel=stylesheet type=text/css href="style.css">
    </head>
    <body>
        <div id="container">
            <div class="title">
                <h1>POST request with Flask</h1>
            </div>
            <div id="content">
                Hello <strong>{{name}}</strong> ({{email}})!
            </div>
            </div>
        </div>
    </body>
</html>

文件form_submit.html

<html>
    <head>
        <title>Handle POST requests with Flask</title>
        <link rel=stylesheet type=text/css href="style.css">
    </head>
    <body>
        <div id="container">
            <div class="title">
                <h1>POST request with Flask</h1>
            </div>
            <div id="content">
                <form method="post" action="{{ url_for('hello') }}">
                  <label for="yourname">Please enter your name:</label>
                  <input type="text" name="yourname" /><br />
                  <label for="youremail">Please enter your email:</label>
                  <input type="text" name="youremail" /><br />
                  <input type="submit" value="Send" />
                </form>
            </div>
            </div>
        </div>
    </body>
</html>

3 - 我运行py文件：

sudo python app.py
[sudo] password for jose: 
 * Running on http://0.0.0.0:80/ (Press CTRL+C to quit)

当我打开浏览器时，我写道：文件：///home/jose/Escritorio/python/app/form_submit.html

我在2个表格中插入数据，然后按发送，这就是：

网址：file：/// home / jose / Escritorio / python / app / {{url_for（＆＃39; hello＆＃39;）}}

网页：找不到文件

我做错了什么？

Answer 1

0.0.0.0表示您可以从网站主机外部访问烧瓶网站。使用主机IP加上您指定的端口＃ http：//：80 /你好。这应该显示您在路线中指定的form_action.html。

Answer 2

如果您想保存表单数据，则代码无效。您必须拥有数据库或保存在文件中。

Flask提交表单并显示插入的值

2 个答案: