在浏览器中保持 Flask 在没有网页的情况下运行

Question

我有一个处理传感器数据的本地烧瓶服务器。当温度大于某个阈值时，它会获取温度值并调整灯光。到目前为止，它仅在一个客户端保持浏览器打开该页面时才有效。如果服务器在不一直打开浏览器的情况下更新温度值并调整光线，那就太好了。如何让它在后台运行？

temperture = 0
threshold_temp = 0

def read_temp():
    #read temperature values

server = Flask(__name__)
socketio = SocketIO(server)
app = dash.Dash(__name__, server = server, url_base_pathname="/dash/")

@server.route('/_stuff')
def stuff():
    global threshold_temp
    temperature = read_temp()
    if temperature >= threshold_temp:
            #change light
    else:
            #do not change light
    return jsonify(result = temperature)

#Change Threshold
@socketio.on('message')
def handleMessage(msg):
    global threshold_temp
    threshold_temp = float(msg)
    send(msg, broadcast=True)
    f = open("Threshold.txt", "w")
    f.write(msg)
    f.close()

#Adjust Threshold on Connection of Client
@socketio.on('connect')
def on_connect():
    global threshold_temp
    f = open("Threshold.txt", "r")
    threshold_temp = float(f.read())
    send(threshold_temp, broadcast=True)

@server.route('/')
def index():
    return render_template('index.html')

if __name__ == '__main__':
    socketio.run(server, host='0.0.0.0', port=80, debug=False)

Answer 1

听起来你想运行一个后台任务；消息代理是处理这类事情的好方法。 python-rq 和 celery 是很好的选择。