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第一次尝试flask和socket都很让人印象深刻，但我坚持一个简单的问题。用烧瓶和烧瓶插座动态更新表格
我从BTEST模块来的数据的
list并且可以呈现html table。这个表格需要用特定时间间隔的新值更新。我正在使用
flask socketio用新值更新表，但不知道如何去做。下面是python代码，我可以渲染初始表。之后我收到500 error，因为套接字无法连接。如果我禁用烧瓶渲染我能够连接并获取表中的数据，但不知道如何发布（以下HTML代码），它
html。先谢谢你。我正在尝试调试时，HTML代码还有其他消息。如果有更简单的方法来执行这个任务，我全部都是耳朵。谢谢你的支持。
from flask import Flask, render_template from flask_socketio import SocketIO, emit, send from flask_table import Table, Col import time import btest def ntable(): dataz,peername=btest.send(6*1024) NAME,ID,S1,S2,S3,ONLINE,IPConn=btest.status(dataz,peername) data = dict(NAME=[NAME],ID=[ID],S1=[S1],S2=[S2],S3=[S3],ONLINE= [ONLINE],IPConn=[IPConn]) class ItemTable(Table): NAME=Col('NAME') ID=Col('ID') S1=Col('S1') S2=Col('S2') S3=Col('S3') ONLINE=Col('ONLINE') IPConn=Col('IPConn') items = [dict(NAME=NAME,ID=ID,S1=S1,S2=S2,S3=S3,ONLINE=ONLINE,IPConn=IPConn)] table = ItemTable(items) s=(table.__html__()) t=s.replace('<table>','<table class="table table-hover">') return t f=open("table.txt",'w') f.write(t) f.close() socketio.emit('message',{'table': t}) def ntabrefresh(): dataz,peername=btest.send(6*1024) NAME,ID,S1,S2,S3,ONLINE,IPConn=btest.status(dataz,peername) while S2=="All Downloads Completed.": data = dict(NAME=[NAME],ID=[ID],S1=[S1],S2=[S2],S3=[S3],ONLINE=[ONLINE],IPConn=[IPConn]) class ItemTable(Table): NAME=Col('NAME') ID=Col('ID') S1=Col('S1') S2=Col('S2') S3=Col('S3') ONLINE=Col('ONLINE') IPConn=Col('IPConn') items = [dict(NAME=NAME,ID=ID,S1=S1,S2=S2,S3=S3,ONLINE=ONLINE,IPConn=IPConn)] table = ItemTable(items) s=(table.__html__()) t=s.replace('<table>','<table class="table table-hover">') socketio.emit('message',{'table': t}) app = Flask(__name__) app.config['SECRET_KEY'] = 'secret!' socketio = SocketIO(app) @app.route('/') def index(): t=ntable() return render_template('mytest0.html',s=t) @socketio.on('connect') def test_connect(): print 'client and I are one' socketio.emit('message') time.sleep(3) ntabrefresh() if __name__ == '__main__': socketio.run(app)<html><head> <title>SMPV Status</title> <link rel="stylesheet" href="static/css/bootstrap.min.css"> <script src="static/jquery.js"></script> <script src="static/bootstrap.min.js"></script> <script type="text/javascript" src="//code.jquery.com/jquery-1.4.2.min.js"></script> <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/socket.io/1.3.5/socket.io.min.js"></script> <script type="text/javascript" charset="utf-8"> $(document).ready(function() { // Use a "/test" namespace. // An application can open a connection on multiple namespaces, and // Socket.IO will multiplex all those connections on a single // physical channel. If you don't care about multiple channels, you // can set the namespace to an empty string. //namespace = '/test'; // Connect to the Socket.IO server. // The connection URL has the following format: // http[s]://<domain>:<port>[/<namespace>] var socket = io.connect('http://' + document.domain + ':' + location.port + '/test'); // Event handler for new connections. // The callback function is invoked when a connection with the // server is established. socket.on('connect', function() { socket.emit('server said hello'); console.log('In connect block sir') }); socket.on('message',function(msg){ console.log("Recieved table"); console.log(msg); $('#tbl').append(msg); }); // Event handler for server sent data. // The callback function is invoked whenever the server emits data // to the client. The data is then displayed in the "Received" // section of the page. socket.on('my_response', function(msg) { $('#log').append('<br>' + $('<div/>').text('Received #' + msg.count + ': ' + msg.data).html()); }); // Interval function that tests message latency by sending a "ping" // message. The server then responds with a "pong" message and the // round trip time is measured. var ping_pong_times = []; var start_time; window.setInterval(function() { start_time = (new Date).getTime(); socket.emit('my_ping'); }, 1000); // Handler for the "pong" message. When the pong is received, the // time from the ping is stored, and the average of the last 30 // samples is average and displayed. socket.on('my_pong', function() { var latency = (new Date).getTime() - start_time; ping_pong_times.push(latency); ping_pong_times = ping_pong_times.slice(-30); // keep last 30 samples var sum = 0; for (var i = 0; i < ping_pong_times.length; i++) sum += ping_pong_times[i]; $('#ping-pong').text(Math.round(10 * sum/ping_pong_times.length)/10); }); // Handlers for the different forms in the page. // These accept data from the user and send it to the server in a // variety of ways $('form#emit').submit(function(event) { socket.emit('my_event', {data: $('#emit_data').val()}); return false; }); $('form#broadcast').submit(function(event) { socket.emit('my_broadcast_event', {data: $('#broadcast_data').val()}); return false; }); $('form#join').submit(function(event) { socket.emit('join', {room: $('#join_room').val()}); return false; }); $('form#leave').submit(function(event) { socket.emit('leave', {room: $('#leave_room').val()}); return false; }); $('form#send_room').submit(function(event) { socket.emit('my_room_event', {room: $('#room_name').val(), data: $('#room_data').val()}); return false; }); $('form#close').submit(function(event) { socket.emit('close_room', {room: $('#close_room').val()}); return false; }); $('form#disconnect').submit(function(event) { socket.emit('disconnect_request'); return false; }); }); </script> </head> <body style="height:1445px"> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> <div id="tbl"> {% block body %} {{s|safe}} {% endblock %} </div> </body></html>
是的，这是超级有用的谢谢你。现在唯一的问题是它是否可以在网络上运行而不是本地主机？ –
当然。为什么它不能在公共网络上运行？没有区别。 – Miguel