Python3.5+PyQt5多線程+itchat實現微信防撤回桌面版代碼
阿新 • • 發佈：2019-01-10
logs rep not cio backup 界面 sel store for
weChatThread線程類
之前一直不會python多線程，寫這個程序的時候，發現不用多線程會陷入無限未響應狀態。於是學了半天python多線程，但是在主函數裏寫的時候，發現一個問題，Ui主線程和工作線程沒有分離，使用itchat等庫的時候會堵塞主線程，換句話說PyQt中子線程不能操作GUI界面。之前寫的多線程仍然屬於Ui主線程，是其子線程，所以才造成未響應。
既然知道問題了，那就查資料解決問題，後來，在幾篇博客上找到了解決辦法
- PyQt 分離UI主線程與工作線程
- python pyqt4 PyQT實現了使用QThread後臺處理數據
- 多線程中的信號/槽
然後仿照第一篇博客，重寫了QThread類，並借鑒第三篇博客，學會了PyQt多線程中的信號/槽機制，用來傳遞參數。
#!/usr/bin/env python3 # -*- coding: utf-8 -*- __author__ = ‘memgq‘ from PyQt5.QtCore import QThread,pyqtSignal import itchat import time,os import shutil import re from itchat.content import * class weChatWord(QThread): getMsgSignal = pyqtSignal(str) #pyqtSignal()必須寫在__init__前面，裏面可接收的參數類型挺多的，str,list,dict都支持def __init__(self,parent=None): super(weChatWord,self).__init__(parent) self.msg_list=[] self.type_list=[‘Picture‘,‘Recording‘, ‘Attachment‘,‘Video‘] def clearList(self): ‘‘‘ 清空緩存消息和文件 :return: ‘‘‘ tm_now=time.time() len_list=len(self.msg_list) if len_list>0: for i in range(len_list): if tm_now-self.msg_list[i][‘msg_time‘]>121: if self.msg_list[i][‘msg_type‘] in self.type_list: try: os.remove(".\\BackUp\\"+self.msg_list[i][‘msg_content‘]) except Exception as e: print(e) finally: pass else:break self.msg_list=self.msg_list[i:] def run(self): ‘‘‘ 重寫run()函數， :return: ‘‘‘ @itchat.msg_register([TEXT, PICTURE, MAP, CARD, SHARING, RECORDING, ATTACHMENT, VIDEO, FRIENDS], isFriendChat=True, isGroupChat=True) def getMsg(msg): ‘‘‘ 註冊消息類型，並對不同類型的消息執行不用的操作 :param msg: :return: ‘‘‘ msg_dict={} # pprint.pprint(msg) msg_id = msg[‘MsgId‘] # 消息ID msg_time = msg[‘CreateTime‘] msg_url=None msg_group="" if (itchat.search_friends(userName=msg[‘FromUserName‘])): if itchat.search_friends(userName=msg[‘FromUserName‘])[‘RemarkName‘]: msg_from = itchat.search_friends(userName=msg[‘FromUserName‘])[‘RemarkName‘] # 消息發送人備註 elif itchat.search_friends(userName=msg[‘FromUserName‘])[‘NickName‘]: # 消息發送人昵稱 msg_from = itchat.search_friends(userName=msg[‘FromUserName‘])[‘NickName‘] # 消息發送人昵稱 else: msg_from = r"讀取發送消息好友失敗" else: msg_group = msg[‘User‘][‘NickName‘] msg_from = msg[‘ActualNickName‘] msg_type = msg[‘Type‘] if msg_type in [‘Text‘, ‘Friends‘,‘Sharing‘]: msg_content = msg[‘Text‘] msg_url = msg[‘Url‘] elif msg_type in self.type_list: msg_content=msg[‘FileName‘] msg[‘Text‘](msg[‘FileName‘]) shutil.move(msg_content,r‘.\\BackUp\\‘) elif msg[‘Type‘] == ‘Card‘: msg_content = msg[‘RecommendInfo‘][‘NickName‘] + r" 的名片" elif msg[‘Type‘] == ‘Map‘: x, y, location = re.search("<location x=\"(.*?)\" y=\"(.*?)\".*label=\"(.*?)\".*", msg[‘OriContent‘]).group(1, 2, 3) if location is None: msg_content = r"緯度->" + x.__str__() + " 經度->" + y.__str__() else: msg_content = r"" + location msg_dict={‘msg_id‘:msg_id,‘msg_time‘:msg_time,‘msg_from‘:msg_from,‘msg_group‘:msg_group, ‘msg_content‘:msg_content,‘msg_type‘:msg_type,‘msg_url‘:msg_url} self.msg_list.append(msg_dict) self.clearList() @itchat.msg_register([NOTE],isFriendChat=True, isGroupChat=True) def recall(msg): ‘‘‘ 當消息類型為通知類的時候，查找消息內容是否為撤回消息，如果是，則執行撤回後的防撤回操作 :param msg: :return: ‘‘‘ # pprint.pprint(msg) msg_content=msg[‘Content‘] if re.search(r‘\<replacemsg\>\<!\[CDATA\[(.*)撤回了一條消息\]\]\>\<\/replacemsg\>‘,msg_content): msg_note=re.search(r‘\<replacemsg\>\<!\[CDATA\[(.*)\]\]\>\<\/replacemsg\>‘,msg_content).group(1) old_msg_id=re.search(r‘\<msgid\>([0-9]+)\</msgid\>‘,msg_content).group(1) for each in self.msg_list: if each[‘msg_id‘]==old_msg_id: timeArray = time.localtime() otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S,", timeArray) msg_note = msg_note + ‘，撤回內容為：‘ + each[‘msg_content‘] if each[‘msg_group‘]!=‘‘: msg_note = "群組（"+each[‘msg_group‘]+")中"+msg_note msg_note=otherStyleTime+msg_note itchat.send(msg_note,toUserName=‘filehelper‘) self.msg_list.pop(self.msg_list.index(each)) self.getMsgSignal.emit(msg_note) break #創建BuckUp文件夾 if not os.path.exists(".\\BackUp\\"): os.mkdir(‘.\\BackUp\\‘) #啟動itchat() itchat.auto_login(hotReload=True) itchat.run()
主程序類
class mainwindowapp(QMainWindow,wechatunrecall.Ui_MainWindow): def __init__(self): super().__init__() self.setupUi(self) self.createActions() self.createTrayIcon() self.pushButton.clicked.connect(self.saveLog) self.pushButton_2.clicked.connect(self.clearlog) self.pushButton_3.clicked.connect(self.houtai) self.trayIcon.activated.connect(self.iconActivated) timeArray = time.localtime() otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S", timeArray) self.setLog(otherStyleTime+"，程序運行時，請用手機掃描彈出的二維碼進行登錄，並確保電腦上自帶的Window照片查" "看器可用，撤回的圖片文件等可下載附件連同運行日誌保存在程序目錄下BackUp文件夾中。\n") self.weChatBigWord() def saveLog(self): ‘‘‘ 保存日誌 :return: ‘‘‘ if not os.path.exists(".\\BackUp\\"): os.mkdir(".\\BackUp\\") timeArray = time.localtime() otherStyleTime = time.strftime("%Y-%m-%d%H%M%S", timeArray) text=self.textBrowser.toPlainText() logPath=".\\BackUp\\"+otherStyleTime+‘.txt‘ with open(logPath,‘w‘) as f: f.write(text) def setLog(self,msg): ‘‘‘ 往運行日誌窗口寫撤回消息的內容 :param msg: :return: ‘‘‘ self.textBrowser.append(msg) def createTrayIcon(self): ‘‘‘ 創建托盤圖標，可以讓程序最小化到windows托盤中運行 :return: ‘‘‘ self.trayIconMenu=QMenu(self) self.trayIconMenu.addAction(self.restoreAction) self.trayIconMenu.addSeparator() self.trayIconMenu.addAction(self.quitAction) self.trayIcon=QSystemTrayIcon(self) self.trayIcon.setContextMenu(self.trayIconMenu) self.trayIcon.setIcon(QIcon(‘./media/images/maincion.png‘)) self.setWindowIcon(QIcon(‘./media/images/maincion.png‘)) self.trayIcon.show() def createActions(self): ‘‘‘ 為托盤圖標添加功能 :return: ‘‘‘ self.restoreAction=QAction("恢復",self,triggered=self.showNormal) self.quitAction=QAction("退出",self,triggered=QApplication.instance().quit) def iconActivated(self,reason): ‘‘‘ 激活托盤功能 :param reason: :return: ‘‘‘ if reason in (QSystemTrayIcon.Trigger, QSystemTrayIcon.DoubleClick): self.showNormal() def houtai(self): self.hide() def clearlog(self): self.textBrowser.clear() def weChatBigWord(self): ‘‘‘ weChatThread類實例化，並啟動線程 :return: ‘‘‘ from weChatThread import weChatWord self.wcBWThread=weChatWord() self.wcBWThread.getMsgSignal.connect(self.setLog) self.wcBWThread.start()
程序界面
程序界面仍然由Qtdesigner設計
後記
第一次嘗試多線程編程，並且具體應用到實際項目中去，收獲良多。
Python3.5+PyQt5多線程+itchat實現微信防撤回桌面版代碼