[英]How to grab the value from the drop-down menu using flask
在單擊 UI 如下所示的提交按鈕后,我試圖從下拉菜單中獲取值:
上述代碼如下:
應用程序.py
from flask import Flask, render_template, request
app = Flask(__name__)
app.debug = True
@app.route('/', methods=['GET'])
def dropdown():
colours = ['SBI', 'Kotak', 'Citi', 'AMEX', 'BOB', 'AXIS', 'HDFC', 'IDBI', 'YES', 'IndusInd']
return render_template('feba.html', colours=colours)
if __name__ == "__main__":
app.run()
index.html在模板文件夾中
<!DOCTYPE html>
<html lang="en">
<style>
body {text-align:center}
</style>
<head>
<meta charset="UTF-8">
</head>
<body>
<img src="{{url_for('static', filename='logo_1.jpg')}}" align="middle" />
<h1>KARDFINDER</h1>
<h2>json file generator for banks</h2>
<select name="colour" method="GET" action="/">
<option value="{{colours[0]}}" selected>{{colours[0]}}</option>
{% for colour in colours[1:] %}
<option value="{{colour}}">{{colour}}</option>
{% endfor %}
</select>
<input type= "submit" name="submitbutton" value ="Submit"></body>
</html>
logo_1.jpg 位於 static 文件夾中
我發布此問題的主要目的是獲得一個解決方案,借助該解決方案,我可以在單擊提交按鈕后從下拉菜單中獲取值,並且我希望將該值存儲在 app.py 文件中的變量中
請幫我解決一下這個。
下面的代碼適用於我,
from flask import Flask, render_template, request, redirect
app = Flask(__name__)
app.debug = True
@app.route('/', methods=['GET'])
def dropdown():
colours = ['SBI', 'Kotak', 'Citi', 'AMEX', 'BOB', 'AXIS', 'HDFC', 'IDBI', 'YES', 'IndusInd']
return render_template('feba.html', colours=colours)
@app.route('/dropdown', methods = ['POST'])
def dropp():
dropdownval = request.form.get('colour')
print(dropdownval)
return redirect("/", code=302)
if __name__ == "__main__":
app.run()
<!DOCTYPE html>
<html lang="en">
<style>
body {text-align:center}
</style>
<head>
<meta charset="UTF-8">
</head>
<body>
<img src="{{url_for('static', filename='logo_1.jpg')}}" align="middle" />
<h1>KARDFINDER</h1>
<h2>json file generator for banks</h2>
<form method="POST" action="/dropdown">
<select name="colour">
<option value="{{colours[0]}}" selected>{{colours[0]}}</option>
{% for colour in colours[1:] %}
<option value="{{colour}}">{{colour}}</option>
{% endfor %}
</select>
<input type="submit" value ="Submit">
</form>
</body>
</html>
你應該學習http requests
, html forms
和ajax
您也可以將索引和下拉頁面合二為一:
from flask import Flask, render_template, request, redirect, url_for
app = Flask(__name__)
app.debug = True
@app.route('/', methods=['GET','POST'])
def dropdown():
colours = ['SBI', 'Kotak', 'Citi', 'AMEX', 'BOB', 'AXIS', 'HDFC', 'IDBI', 'YES', 'IndusInd']
if request.method=='POST':
var = request.form['var']
return render_template('feba.html', colours=colours)
if __name__ == "__main__":
app.run()
這有點簡單。 您可以使用與 Mert Celik 相同的 html 代碼,但將 action="/dropdown" 更改為 action="/"
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