QThread：使用 GUI python 进行线程处理

编程问答 2022-05-26

问题描述

我正在制作迷你聊天应用程序，以提高我在 Python 中的套接字和 GUI 技能。但是每次启动应用程序时，我的 QThread 都在转储。 我需要用 GUI 运行线程 这是client.py

import socket
import sys
from colorama import Fore,Back,Style
from os import system,name
import sys
from chat import Ui_Form as Ui_Form
from login  import Ui_Form as Ui_Form1
from PyQt5 import QtCore,QtGui,QtWidgets
from threading import Thread

sock = socket.socket(socket.AF_INET,socket.SOCK_STREAM)

app = QtWidgets.QApplication(sys.argv)
Form_login = QtWidgets.QWidget()
ui_login = Ui_Form1()
ui_login.setupUi(Form_login)
Form_login.show()

Form_chat = QtWidgets.QWidget()
ui_chat = Ui_Form()
ui_chat.setupUi(Form_chat)
history = ''


class listen_thread(QtCore.QObject):
    running = False
    listen_var = QtCore.pyqtSignal(str)
    def run():
        print('checkpoint')
        while True:
            listen_var.emit('message')
            QtCore.QThread.msleep(1000)

def connect_pressed():
    username = ui_login.lineEdit.text()
    Form_login.hide()
    Form_chat.show()
    sock.connect(('127.0.0.1',10000))
    
    thread = QtCore.QThread()
    listen1 = listen_thread()
    listen1.moveToThread(thread)
    listen1.listen_var.connect(update_chat_history)
    thread.started.connect(listen1.run)
    thread.start()
    

@QtCore.pyqtSlot(str)
def update_chat_history(message):
    print(message)
    ui_chat.textEdit_2.append(message) 

def send_pressed():
    message = ui_login.lineEdit.text() + ' > ' + ui_chat.lineEdit.text()
    sock.send(bytes(str(message),'utf-8'))
    # update_chat_history(message)
    ui_chat.lineEdit.setText('')


def listen(some):
    while True:
        try:
            data = sock.recv(1024)
        except:
            pass
        else:
            update_chat_history(str(data))


ui_login.pushButton.clicked.connect(connect_pressed)
ui_chat.pushButton.clicked.connect(send_pressed)

sys.exit(app.exec_())

当我启动它时，输出是：

QThread: Destroyed while thread is still running
Aborted (core dumped)

有人可以帮忙吗？？？

解决方法

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multithreadingpyqt5pysidepythonsockets