Python 如何从 AJAX 帖子获取 Flask 中的数据
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How to GET data in Flask from AJAX post
提问by 0248881
I want to retrieve the data from the variable 'clicked' so I can use it in SQL queries in Flask.
我想从变量“clicked”中检索数据，以便我可以在 Flask 的 SQL 查询中使用它。
JQuery
查询
$(document).ready(function(){
var clicked;
$(".favorite").click(function(){
clicked = $(this).attr("name");
$.ajax({
type : 'POST',
url : "{{url_for('test')}}",
data : clicked
});
});
});
Flask/Python
烧瓶/Python
@app.route('/test/', methods=['GET','POST'])
def test():
return render_template('test.html')
回答by Sugam
You can compose your payload in your ajax request as so:
您可以在 ajax 请求中编写有效负载，如下所示：
$(document).ready(function(){
var clicked;
$(".favorite").click(function(){
clicked = $(this).attr("name");
$.ajax({
type : 'POST',
url : "{{url_for('test')}}",
contentType: 'application/json;charset=UTF-8',
data : {'data':clicked}
});
});
});
In your flask endpoint, you can extract the value as follows:
在您的烧瓶端点中，您可以按如下方式提取值：
@app.route('/test/', methods=['GET','POST'])
def test():
clicked=None
if request.method == "POST":
clicked=request.json['data']
return render_template('test.html')
回答by ASSILI Taher
I used the best answer but i found a bad request error. I solve this error as below:
我使用了最好的答案，但我发现了一个错误的请求错误。我解决这个错误如下：
1- remove this line from ajax request:
1- 从 ajax 请求中删除这一行：
contentType: 'application/json;charset=UTF-8',
2- Access to data by request.form instead of request.json.
2- 通过 request.form 而不是 request.json 访问数据。
The Javascript part will similar to this:
Javascript 部分将类似于：
$(document).ready(function(){
var clicked;
$(".favorite").click(function(){
clicked = $(this).attr("name");
$.ajax({
type : 'POST',
url : "{{url_for('test')}}",
data : {'data':clicked}
});
});
});
Flask part:
烧瓶部分：
@app.route('/test/', methods=['GET','POST'])
def test():
clicked=None
if request.method == "POST":
clicked=request.form['data']
return render_template('test.html')
回答by yardstick17
At your flask app end-point , you can define method to retrieve GET/POST data like this :
在您的烧瓶应用程序端点，您可以定义方法来检索 GET/POST 数据，如下所示：
from flask_restful import reqparse
def parse_arg_from_requests(arg, **kwargs):
parse = reqparse.RequestParser()
parse.add_argument(arg, **kwargs)
args = parse.parse_args()
return args[arg]
@app.route('/test/', methods=['GET','POST'])
def test():
clicked = parse_arg_from_requests('data')
return render_template('test.html' , clicked=clicked)
