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javascript - 我没有收到来自 flask 服务器的套接字响应

转载 作者：行者123 更新时间：2023-12-03 11:59:13 25 4
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我正在 flask 中的 socket.io 模块上工作，按下是、否或可能按钮后，我没有在套接字中得到响应 这是我的 codehtml 代码

> <!DOCTYPE html>
>     <html>
>         <head>
>             <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/socket.io/1.3.6/socket.io.min.js"></script>
>             <script type="text/javascript" src="{{ url_for('static', filename='index.js') }}"></script>
>             <title>Vote</title>
>         </head>
>         <body>
>             <ul id="votes">
>             </ul>
>             <hr>
>             <button data-vote="yes">Yes</button>
>             <button data-vote="no">No</button>
>             <button data-vote="maybe">Maybe</button>
>         </body>
>     </html>

这是我的js代码 
 document.addEventListener('DOMContentLoaded', () => {

        // Connect to websocket
        var socket = io.connect(location.protocol + '//' + document.domain + ':' + location.port);

        // When connected, configure buttons
        socket.on('connect', () => {

            // Each button should emit a "submit vote" event
            document.querySelectorAll('button').forEach(button => {
                button.onclick = () => {
                    const selection = button.dataset.vote;
                    socket.emit('submit vote', {'selection': selection});
                };
            });
        });

        // When a new vote is announced, add to the unordered list
        socket.on('announce vote', data => {
            const li = document.createElement('li');
            li.innerHTML = `Vote recorded: ${data.selection}`;
            document.querySelector('#votes').append(li);
        });
    });

这是我的python代码 
import os
import requests

from flask import Flask, jsonify, render_template, request
from flask_socketio import SocketIO, emit

app = Flask(__name__)
app.config["SECRET_KEY"] = os.getenv("SECRET_KEY")
socketio = SocketIO(app)

@app.route("/")
def index():
    return render_template("index.html")

@socketio.on("submit vote")
def vote(data):
    selection = data["selection"]
    emit("announce vote", {"selection": selection}, broadcast=True)

127.0.0.1 - - [06/Mar/2019 23:48:55] "GET / HTTP/1.1" 200 - 127.0.0.1 - - [06/Mar/2019 23:48:55] "GET /static/index.js HTTP/1.1" 200 - 127.0.0.1 - - [06/Mar/2019 23:48:56] "GET /socket.io/?EIO=3&transport=polling&t=1551896336110-0 HTTP/1.1" 200 - 127.0.0.1 - - [06/Mar/2019 23:49:56] "GET /socket.io/?EIO=3&transport=polling&t=1551896336245-1&sid=7d3a45fe719e4e92a2b60728ff734cdf HTTP/1.1" 400 - 127.0.0.1 - - [06/Mar/2019 23:49:56] "GET /favicon.ico HTTP/1.1" 404 - 127.0.0.1 - - [06/Mar/2019 23:49:56] "POST /socket.io/?EIO=3&transport=polling&t=1551896337783-2&sid=7d3a45fe719e4e92a2b60728ff734cdf HTTP/1.1" 400 - 127.0.0.1 - - [06/Mar/2019 23:49:56] "POST /socket.io/?EIO=3&transport=polling&t=1551896396273-3&sid=7d3a45fe719e4e92a2b60728ff734cdf HTTP/1.1" 400 - 127.0.0.1 - - [06/Mar/2019 23:49:57] "GET /socket.io/?EIO=3&transport=polling&t=1551896397551-4 HTTP/1.1" 200 - 127.0.0.1 - - [06/Mar/2019 23:50:56] "GET /socket.io/?EIO=3&transport=polling&t=1551896397576-5&sid=42e86974ded740ed8ee99266e917048e HTTP/1.1" 200 - 127.0.0.1 - - [06/Mar/2019 23:50:56] "POST /socket.io/?EIO=3&transport=polling&t=1551896423047-6&sid=42e86974ded740ed8ee99266e917048e HTTP/1.1" 400 - 127.0.0.1 - - [06/Mar/2019 23:50:56] "GET /socket.io/?EIO=3&transport=polling&t=1551896456270-7&sid=42e86974ded740ed8ee99266e917048e HTTP/1.1" 400 - 127.0.0.1 - - [06/Mar/2019 23:50:57] "POST /socket.io/?EIO=3&transport=polling&t=1551896457043-8&sid=42e86974ded740ed8ee99266e917048e HTTP/1.1" 400 - 127.0.0.1 - - [06/Mar/2019 23:50:59] "GET /socket.io/?EIO=3&transport=polling&t=1551896459040-9 HTTP/1.1" 200 - 127.0.0.1 - - [06/Mar/2019 23:51:56] "GET /socket.io/?EIO=3&transport=polling&t=1551896459067-10&sid=b782019c299b4bc5a913934763b09059 HTTP/1.1" 200 - 127.0.0.1 - - [06/Mar/2019 23:51:56] "POST /socket.io/?EIO=3&transport=polling&t=1551896485040-11&sid=b782019c299b4bc5a913934763b09059 HTTP/1.1" 400 - 127.0.0.1 - - [06/Mar/2019 23:51:56] "GET /socket.io/?EIO=3&transport=polling&t=1551896516257-12&sid=b782019c299b4bc5a913934763b09059 HTTP/1.1" 400 - 127.0.0.1 - - [06/Mar/2019 23:51:57] "POST /socket.io/?EIO=3&transport=polling&t=1551896517043-13&sid=b782019c299b4bc5a913934763b09059 HTTP/1.1" 400 - 127.0.0.1 - - [06/Mar/2019 23:51:58] "GET /socket.io/?EIO=3&transport=polling&t=1551896518044-14 HTTP/1.1" 200 - 127.0.0.1 - - [06/Mar/2019 23:52:56] "GET /socket.io/?EIO=3&transport=polling&t=1551896518072-15&sid=62c3c894db304b538f830b5036e42b6c HTTP/1.1" 200 - 127.0.0.1 - - [06/Mar/2019 23:52:56] "POST /socket.io/?EIO=3&transport=polling&t=1551896544039-16&sid=62c3c894db304b538f830b5036e42b6c HTTP/1.1" 400 -

最佳答案

不确定，但你能试试吗

socketio.emit("announce vote", {"selection": selection})

关于javascript - 我没有收到来自 flask 服务器的套接字响应，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/55030066/

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