前言：
Server：
#PyQT5
from PyQt5.QtCore import * from PyQt5.QtWidgets import * from PyQt5.QtNetwork import * import string import copy class Server(): def __init__(self): self.tcpServer = None self.networkSession = None self.clientNum = 0 self.strMsg = 'nihaonihaonihao' self.shutFlag =False def buildServer(self): #初始化Server manager = QNetworkConfigurationManager() if manager.capabilities() & QNetworkConfigurationManager.NetworkSessionRequired: settings = QSettings(QSettings.UserScope, 'QtProject') settings.beginGroup('QtNetwork') id = settings.value('DefaultNetworkConfiguration', '') settings.endGroup() config = manager.configurationFromIdentifier(id) if config.state() & QNetworkConfiguration.Discovered == 0: config = manager.defaultConfiguration() self.networkSession = QNetworkSession(config, self) self.networkSession.opened.connect(self.sessionOpened) self.statusLabel.setText("Opening network session.") self.networkSession.open() else: self.sessionOpened() self.tcpServer.newConnection.connect(self.ClientInit) #有新的client就链接到新client上进行通讯 def sessionOpened(self):#这里初始的是本机ip if self.networkSession is not None: config = self.networkSession.configuration() if config.type() == QNetworkConfiguration.UserChoice: id = self.networkSession.sessionProperty('UserChoiceConfiguration') else: id = config.identifier() settings = QSettings(QSettings.UserScope, 'QtProject') settings.beginGroup('QtNetwork') settings.setValue('DefaultNetworkConfiguration', id) settings.endGroup(); self.tcpServer = QTcpServer() self.tcpServer.listen(QHostAddress.Any,50213) if self.tcpServer.isListening() == False: QMessageBox.critical(self, "Fortune Server", "Unable to start the server: %s." % self.tcpServer.errorString()) self.close() return for ipAddress in QNetworkInterface.allAddresses(): if ipAddress != QHostAddress.LocalHost and ipAddress.toIPv4Address() != 0: break else: ipAddress = QHostAddress(QHostAddress.LocalHost) print(ipAddress.toString()) print(self.tcpServer.serverPort()) self.ipAddress =ipAddress.toString() self.ipPort = self.tcpServer.serverPort() def ClientInit(self):#有新的client就链接新的client并和其通讯 if self.clientNum ==1: self.serverShutCurrentClient() print("Sudden client builds the connection") if self.clientNum==0: print("New client builds the connection") self.clientConnection = self.tcpServer.nextPendingConnection() self.clientConnection.disconnected.connect(self.serverShutCurrentClient) self.clientConnection.readyRead.connect(self.readData) self.clientNum += 1 self.shutFlag =True def sendData(self):#简单的发送string if self.clientNum == 1: block = QByteArray() block.append(self.strMsg) self.clientConnection.write(block) def readData(self):#简单的读取string,并除去byte标符 tempdata = self.clientConnection.read(1024) tempstr = str(tempdata) tempstr = tempstr.replace("b'",'') tempstr = tempstr.replace("'",'') print(tempstr) def serverShutCurrentClient(self):# self.clientConnection.disconnectFromHost() self.clientNum =0 print("Disconnect with the last client") def serverShutDown(self): if self.shutFlag : self.clientConnection.close() print("The Server is shut down!")文章来源: Unity 与 Python 实现TCP通讯