python - 如何使用 Python Flask 获取 HTML 输入

Question

我计划在提交时从 HTML 表单获取输入，输入将被发送到 Python。这是 HTML 文件

<form method="GET">

  <div class="form-inline">
    <div class="form-group">
      <input type="email" class="line-input" name="userEmail" placeholder="Email">
    </div>
    <div class="form-group">
      <input type="password" class="line-input" name="userPassword" placeholder="Password">
    </div>
  </div>

  <div class="form-inline">
    <div class="form-group">
      <input type="email" class="line-input" name="recipientMail" placeholder="Recipient">
    </div>
    <div class="form-group">
      <input type="email" class="line-input" name="CCEmail" placeholder="CC">
    </div>
  </div>

  <div class=" form-group">
    <button type="submit" class="btn btn-light text-primary btn-block" style="margin : 20px 20px -10px 0px">Send Message</button>
  </div>

  </form>

现在我不知道最好的方法，我在 Python 中尝试过，但似乎不起作用

@app.route('/', methods=['POST'])
def form_post():
    userEmail = request.form['userEmail']
    userPassword = request.form['userPassword']
    return userEmail, userPassword

有人能帮我吗？

Answer 1

将您的表单方法从GET 更改为POST，因为您的路由仅指定"POST"，并且不会接受任何其他请求不同的类型:

<form method="POST">

编辑:如果您希望同时指定这两种方法，请确保您的路由在触发路由时检查当前正在发送的正确请求类型:

@app.route('/', methods=['POST','GET'])
def form_post():
  if flask.request.method == 'POST'
     userEmail = request.form['userEmail']
     userPassword = request.form['userPassword']
     return userEmail, userPassword
  return flask.render_template('something.html')

但是请注意，您是在主路径 ('/') 上创建表单。最好返回指向具有以下表单代码的页面的链接:

@app.route('/')
def home():
  return 'Welcome! <a href="/login">login here</a>'

@app.route('/login', methods=['GET', 'POST']):
  if flask.request.method == 'POST'
    userEmail = request.form['userEmail']
    userPassword = request.form['userPassword']
    return flask.redirect('/')
  return flask.render_template('form_filename.html')