【发布时间】：2021-10-31 13:03:49
【问题描述】：
所以，我正在尝试使用 Telethon、quart 和 websockets 来创建一个动态页面，该页面仅在客户端收到消息事件时才接收更新：
from telethon import TelegramClient, connection, events, utils
import hypercorn.asyncio
from quart import Quart, websocket
from variables import api_id, api_hash
from datetime import datetime
import asyncio
# Session name, API ID and hash to use; loaded from environmental variables
SESSION = 'quart';
# Telethon client
client = TelegramClient(SESSION, api_id, api_hash)
client.parse_mode = 'html'
###paginas html
teste_html = """
<!doctype html>
<html>
<head>
<title>Quart + Telethon</title>
<link rel="stylesheet" type="text/css" href="/static/style.css">
</head>
<body>
<h1>Página de teste!</h1>
<p>No momento, estamos testando o websocket</p>
<ul></ul>
<script type="text/javascript">
let socket = new WebSocket('ws://localhost:8000/random');
socket.onmessage = function(event) {
var messages_dom = document.getElementsByTagName('ul')[0];
var message_dom = document.createElement('li');
var cotent_dom = document.createTextNode('Received: ' + event.data);
message_dom.appendChild(cotent_dom);
messages_dom.appendChild(message_dom);
};
</script>
</body>
</html>
"""
###
app = Quart(__name__)
lock = asyncio.Lock();
@app.before_serving
async def startup():
await client.connect()
@app.after_serving
async def cleanup():
await client.disconnect()
@client.on(events.NewMessage)
async def receber(event):
global x;
try:
sender = await event.get_sender();
name = utils.get_display_name(sender);
message = name + "::::::" + event.text + "\n";
await lock.acquire();
x = message;
try:
file = open('msg.txt', '+a');
file.write(message);
file.close();
finally:
lock.release()
except(KeyboardInterrupt):
print("Adeus!");
except Exception as e:
print("\n======ERRO======\n");
print(e);
###websockets
@app.websocket('/random')
async def random():
global x;
import random
from time import sleep
try:
while True:
if x != 1:
print(x);
data = random.randint(0,5);
data = str(data);
await websocket.send(f"Quart enviou 1: {data}");
else:
besteira = 0;
sleep(1);
except Exception as e:
print(e);
print("erro 2");
@app.route('/')
async def hello_world():
await client.send_message('me', 'Hello World')
#return 'Message Sent!'
return teste_html;
async def main():
await hypercorn.asyncio.serve(app, hypercorn.Config())
if __name__ == '__main__':
x = 1;
try:
client.loop.run_until_complete(main())
except KeyboardInterrupt:
print("Adeus!");
except Exception as e:
print(e);
这个想法是，当收到第一条新消息时，websocket 将开始向页面发送随机数（我是初学者），但是，它只是锁定，甚至不会写入 msg.txt 文件，这里是细的，只有当你使用 if 语句时才会发生这种情况。如果你把 if 语句拿掉，它会运行，慢，但它会运行，但如果你把 if 语句，它只是锁定。
如果你不能帮助我，你能推荐我任何 quart/telethon/websocket 教程吗？还是一个例子？如果没有，还有其他方法可以做到这一点吗？有没有更好的方法来创建动态页面？
非常欢迎任何帮助。
【问题讨论】：
标签： javascript websocket telethon quart hypercorn