你如何访问 Flask 路由中的查询字符串? [英] How do you access the query string in Flask routes?

问题描述

如何访问 Flask 路由中的查询参数或查询字符串?从 Flask 文档中看并不明显.

How do you access query parameters or the query string in Flask routes? It's not obvious from the Flask documentation.

下面的示例路由 /data 说明了我想访问该数据的上下文.如果有人请求类似 example.com/data?abc=123 的东西，我想访问字符串 ?abc=123 或能够检索参数的值像abc.

The example route /data below illustrates the context that I would like to access that data. If someone requests something like example.com/data?abc=123, I would like access to the string ?abc=123 or to be able to retrieve the value of parameters like abc.

@app.route("/data")
def data():
    # query_string = ???
    return render_template("data.html")

推荐答案

from flask import request

@app.route('/data')
def data():
    # here we want to get the value of user (i.e. ?user=some-value)
    user = request.args.get('user')

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