如何正确安装flask-socketIO? [英] How do i properly install flask-socketIO?
问题描述
我在Mac上安装了多次Flask-socketio，请仔细阅读说明并安装要求(eventlet/gevent).尽管当我运行简单的代码进行测试时，它表示我尚未导入模块，或者什么也没有显示，直到我在浏览器中打开index.html，然后显示以下内容:客户端使用的是不支持的Socket.IO或Engine.IO协议版本(此错误的进一步发生将以INFO级别记录)
I have installed multiple times Flask-socketio on my mac, closely reading the instructions and installing the requirements (eventlet/gevent). Athough when i run my simple code to test, it either says that i have not imported the modules or show nothing until i open index.html in my browser where it then displays :
The client is using an unsupported version of the Socket.IO or Engine.IO protocols (further occurrences of this error will be logged with level INFO)
这是我的app.py代码:
Here is my app.py code:
from flask import Flask
from flask_socketio import SocketIO, send
app = Flask(__name__)
app.config['SECRET_KEY'] = 'hello'
socketio = SocketIO(app, cors_allowed_origins='*')
@socketio.on('message')
def handle(msg):
print("message: "+msg)
send(msg, bradcast=True)
if __name__ == '__main__':
socketio.run(app)
这是我的终端窗口:
这是我的index.html代码(如果需要):
Here is my index.html code (if needed):
<html>
<head>
<title>Chat Room</title>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/1.4.8/socket.io.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
</head>
<body>
<script type="text/javascript">
$(document).ready(function() {
var socket = io.connect('http://127.0.0.1:5000');
socket.on('connect', function() {
socket.send('User has connected!');
});
socket.on('message', function(msg) {
$("#messages").append('<li>'+msg+'</li>');
console.log('Received message');
});
$('#sendbutton').on('click', function() {
socket.send($('#myMessage').val());
$('#myMessage').val('');
});
});
</script>
<ul id="messages"></ul>
<input type="text" id="myMessage">
<button id="sendbutton">Send</button>
</body>
</html>
谢谢您的帮助
推荐答案
检查烧瓶-SocketIO文档以获取有关版本兼容性的信息.
Check the Flask-SocketIO docs for information about version compatibility.
您已经安装了Flask-SocketIO版本5，因此需要JavaScript客户端版本3，但是您具有1.4.8.
You have installed Flask-SocketIO version 5, so you need version 3 of the JavaScript client, but you have 1.4.8.
使用此CDN URL代替版本3.0.5: https://cdnjs.cloudflare.com/ajax/libs/socket.io/3.0.5/socket.io.min.js
Use this CDN URL instead for version 3.0.5: https://cdnjs.cloudflare.com/ajax/libs/socket.io/3.0.5/socket.io.min.js
这篇关于如何正确安装flask-socketIO?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
