问题描述
我需要通过flask web socket flask_socketio(5.0.1) on html socket io(3.1.0)在html上连续显示数据。
from flask import Flask,render_template
from flask_socketio import SocketIO
app = Flask(__name__)
app.config['SECRET_KEY'] = 'secret!'
socketio = SocketIO(app)
@app.route('/')
def stock_view():
return render_template('index.html')
@socketio.on('message')
def handle_message(data):
emit('message',json_data,broadcast=True,include_self=False)
if __name__ == '__main__':
socketio.run(app)
######### index.html #########
<html>
<head>
</head>
<body>
<script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/3.1.0/socket.io.js"
integrity="sha512-
+l9L4lMTFNy3dEglQpprf7jQBhQsQ3/WvOnjaN/+/L4i0jOstgScV0q2TjfvRF4V+ZePMDuZYIQtg5T4MKr+MQ=="
crossorigin="anonymous"></script>
<script type="text/javascript" charset="utf-8">
var socket = io();
socket.on('connect',function() {
socket.emit('my event',{data: 'I\'m connected!'});
});
</script>
</body>
</html>
解决方法
您的代码完全符合您现在的需求!你的问题在前端部分,改成这样:
<html>
<head>
<title>Chat Room</title>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/3.1.0/socket.io.js"
integrity="sha512-
+l9L4lMTFNy3dEglQpprf7jQBhQsQ3/WvOnjaN/+/L4i0jOstgScV0q2TjfvRF4V+ZePMDuZYIQtg5T4MKr+MQ=="></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>
P.S:如果您不想为前端而烦恼,请在 chrome 上使用 Firecamp 扩展: FireCamp