假设我有一个动态生成输出到 linux 终端的 python 脚本，我想使用 python flask 在网页上动态显示相同的输出，我需要在运行 python 脚本时在网页上获得与 linux 终端相同的实时输出
脚本.py
import time
while True:
print("Hello, world!")
time.sleep(1) # wait for 1 second before printing again
app.py
from flask import Flask, render_template
from flask_socketio import SocketIO, emit
import subprocess
from threading import Timer
app = Flask(__name__)
app.config['SECRET_KEY'] = 'secret!'
socketio = SocketIO(app)
@socketio.on('connect')
def test_connect():
print('Client connected')
@socketio.on('disconnect')
def test_disconnect():
print('Client disconnected')
@app.route('/')
def index():
return render_template('index.html')
@socketio.on('run_script')
def run_script():
p = subprocess.Popen(['python3', 'script.py'], stdout=subprocess.PIPE)
def kill_proc():
p.kill()
print('Script process killed')
t = Timer(60.0, kill_proc) # Set a timeout of 60 seconds
t.start()
while True:
output = p.stdout.readline().decode('utf-8')
if output == '' and p.poll() is not None:
break
emit('script_output', {'data': output})
t.cancel()
if __name__ == '__main__':
socketio.run(app)
index.html
<!doctype html>
<html>
<head>
<title>Dynamically display script output with Flask-SocketIO</title>
</head>
<body>
<button id="run-script">Run script</button>
<div id="output"></div>
<script src="//cdnjs.cloudflare.com/ajax/libs/socket.io/4.3.2/socket.io.min.js"></script>
<script type="text/javascript">
var socket = io.connect('http://' + document.domain + ':' + location.port);
socket.on('script_output', function(data) {
var output = document.getElementById('output');
output.innerHTML += data.data + '<br>';
});
document.getElementById('run-script').onclick = function() {
socket.emit('run_script');
};
</script>
</body>
</html>
以上文件是我试过的，但在浏览器上没有得到任何响应