Python结合PyQt和Flask实现桌面端一键启动/关闭Web服务的应用

pip install PyQt5 flask

import sys, webbrowser
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QVBoxLayout, QWidget
from PyQt5.QtCore import QTimer
from flask import Flask
from werkzeug.serving import make_server
from multiprocessing import Process

# Flask app 和之前一样
flask_app = Flask(__name__)

@flask_app.route('/')
def hello_world():
    return 'Hello, World!'

server = None
flask_process = None

def run_flask_app():
    global server
    wsgi_app = flask_app.wsgi_app
    server = make_server('127.0.0.1', 5003, wsgi_app)
    server.serve_forever()

def start_flask_process():
    global flask_process
    flask_process = Process(target=run_flask_app)
    flask_process.start()

def stop_flask_app():
    global server, flask_process
    if server:
        server.shutdown()
        server = None
    if flask_process:
        flask_process.terminate()
        flask_process = None

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('PyQT Flask Demo')
        self.setGeometry(100, 100, 400, 200)
        self.start_button = QPushButton('Start Flask App')
        self.start_button.clicked.connect(self.start_flask_and_open_web)
        self.stop_button = QPushButton('Stop Flask App')
        self.stop_button.clicked.connect(self.stop_flask_app)
        layout = QVBoxLayout()
        layout.addWidget(self.start_button)
        layout.addWidget(self.stop_button)
        main_widget = QWidget()
        main_widget.setLayout(layout)
        self.setCentralWidget(main_widget)

    def start_flask_and_open_web(self):
        start_flask_process()
        QTimer.singleShot(1000, lambda: webbrowser.open("http://127.0.0.1:5003"))

    def stop_flask_app(self):
        stop_flask_app()

if __name__ == '__main__':
    qt_app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(qt_app.exec_())