POST 方法在 Heroku - Flask 应用程序中不起作用

Question

我在 Heroku 中部署了一个 flask 应用程序。 在我的应用程序中，GET 方法运行得非常好，但是当它尝试在 POST 方法中执行某些操作时，会出现状态 400。

在我的应用程序中，我有一个 HTML 表单，我从中获取输入并通过 POST 方法将它们保存到 SQLite3 中。 还有一个登录选项，可以查看所有已上传的信息。

我在提交信息或尝试登录时遇到问题。它返回{"message": "The browser (or proxy) sent a request that this server could not understand."}

档案：

web: uwsgi uwsgi.ini

uwsgi：

    [uwsgi] 
http-socket = :$(PORT)
master = true
die-on-term = true
module = app:app
memory-report = true

python 模块中的 Class GetInfo：

class GetInfo(Resource):
    TABLE_NAME = "user"

    parser = reqparse.RequestParser()
    parser.add_argument("username",
                        type=str,
                        required=True,
                        help="Username can't be blank.")
    parser.add_argument("password",
                        type=str,
                        required=True,
                        help="Password can't left blank.")

    def get(self):
        return make_response(render_template("login.html"))

    def post(self):
        data = GetInfo.parser.parse_args()
        connection = sqlite3.connect("All Information.db")
        cursor = connection.cursor()
        result = cursor.execute("SELECT * FROM user WHERE username=?", (data['username'],)).fetchone()
        if result:
            user = result
        else:
            user = None
        if user[1] == data['password']:
            query = "SELECT * FROM people"
            data = list(cursor.execute(query))
            info = {}
            for item in data:
                info[" ".join([item[x] for x in range(1, 3)])] = [item[a] for a in range(3, len(item))]
        else:
            return {"message": "You have entered wrong password."}

        connection.commit()
        connection.close()
        return make_response(render_template("showinfo.html", data=info))

HTML 登录

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Log in</title>
</head>

<h1 align="center"> Log In </h1>
<body bgcolor="ADDDD0"> </body>
<form align="center" action="{{url_for("getinfo")}}" method="post" >
    Username: <input type="text" name="username"> <br><br>
    Password: <input type="password" name="password" > <br><br>
    <input type="submit" value="Submit">
</form>

<body align="center">
<p><b>Note:</b> Be sincere while typing password.</p>
</body>
</html>

Heroku 日志：

2022-09-27T12:50:13.129556+00:00 heroku[router]: at=info method=POST path="/form" host=students-biodata.herokuapp.com request_id=4f0e7cdd-68a6-47a0-925d-71533cff9728 fwd="103.23.206.38" dyno=web.1 connect=0ms service=3ms status=400 bytes=172 protocol=https
  

GitHub ：全码