小編給大家分享一下python3+PyQt5如何創(chuàng)建多線程網(wǎng)絡(luò)應(yīng)用，相信大部分人都還不怎么了解，因此分享這篇文章給大家參考一下，希望大家閱讀完這篇文章后大有收獲，下面讓我們一起去了解一下吧！
以下為TCP客戶端的程序代碼：
重慶分公司
重慶分公司
#!/usr/bin/env python3
import sys
from PyQt5.QtCore import (QByteArray, QDataStream, QDate, QIODevice,
QRegExp, Qt)
from PyQt5.QtWidgets import (QApplication, QDateEdit, QFrame, QGridLayout,
QHBoxLayout, QLabel, QLineEdit, QPushButton,
QWidget)
from PyQt5.QtGui import QRegExpValidator
from PyQt5.QtNetwork import (QTcpSocket,)
MAC = True
try:
from PyQt5.QtGui import qt_mac_set_native_menubar
except ImportError:
MAC = False
PORT = 9407
SIZEOF_UINT16 = 2
class BuildingServicesClient(QWidget):
def __init__(self, parent=None):
super(BuildingServicesClient, self).__init__(parent)
self.socket = QTcpSocket()
self.nextBlockSize = 0
self.request = None
roomLabel = QLabel("&Room")
self.roomEdit = QLineEdit()
roomLabel.setBuddy(self.roomEdit)
regex = QRegExp(r"[0-9](?:0[1-9]|[12][0-9]|3[0-4])")
self.roomEdit.setValidator(QRegExpValidator(regex, self))
self.roomEdit.setAlignment(Qt.AlignRight|Qt.AlignVCenter)
dateLabel = QLabel("&Date")
self.dateEdit = QDateEdit()
dateLabel.setBuddy(self.dateEdit)
self.dateEdit.setAlignment(Qt.AlignRight|Qt.AlignVCenter)
self.dateEdit.setDate(QDate.currentDate().addDays(1))
self.dateEdit.setDisplayFormat("yyyy-MM-dd")
responseLabel = QLabel("Response")
self.responseLabel = QLabel()
self.responseLabel.setFrameStyle(QFrame.StyledPanel|QFrame.Sunken)
self.bookButton = QPushButton("&Book")
self.bookButton.setEnabled(False)
self.unBookButton = QPushButton("&Unbook")
self.unBookButton.setEnabled(False)
quitButton = QPushButton("&Quit")
if not MAC:
self.bookButton.setFocusPolicy(Qt.NoFocus)
self.unBookButton.setFocusPolicy(Qt.NoFocus)
buttonLayout = QHBoxLayout()
buttonLayout.addWidget(self.bookButton)
buttonLayout.addWidget(self.unBookButton)
buttonLayout.addStretch()
buttonLayout.addWidget(quitButton)
layout = QGridLayout()
layout.addWidget(roomLabel, 0, 0)
layout.addWidget(self.roomEdit, 0, 1)
layout.addWidget(dateLabel, 0, 2)
layout.addWidget(self.dateEdit, 0, 3)
layout.addWidget(responseLabel, 1, 0)
layout.addWidget(self.responseLabel, 1, 1, 1, 3)
layout.addLayout(buttonLayout, 2, 1, 1, 4)
self.setLayout(layout)
self.socket.connected.connect(self.sendRequest)
self.socket.readyRead.connect(self.readResponse)
self.socket.disconnected.connect(self.serverHasStopped)
#self.connect(self.socket,
# SIGNAL("error(QAbstractSocket::SocketError)"),
# self.serverHasError)
self.socket.error.connect(self.serverHasError)
self.roomEdit.textEdited.connect(self.updateUi)
self.dateEdit.dateChanged.connect(self.updateUi)
self.bookButton.clicked.connect(self.book)
self.unBookButton.clicked.connect(self.unBook)
quitButton.clicked.connect(self.close)
self.setWindowTitle("Building Services")
def updateUi(self):
enabled = False
if (self.roomEdit.text() and
self.dateEdit.date() > QDate.currentDate()):
enabled = True
if self.request is not None:
enabled = False
self.bookButton.setEnabled(enabled)
self.unBookButton.setEnabled(enabled)
def closeEvent(self, event):
self.socket.close()
event.accept()
def book(self):
self.issueRequest("BOOK", self.roomEdit.text(),
self.dateEdit.date())
def unBook(self):
self.issueRequest("UNBOOK", self.roomEdit.text(),
self.dateEdit.date())
def issueRequest(self, action, room, date):
self.request = QByteArray()
stream = QDataStream(self.request, QIODevice.WriteOnly)
stream.setVersion(QDataStream.Qt_5_7)
stream.writeUInt16(0)
stream.writeQString(action)
stream.writeQString(room)
stream << date
stream.device().seek(0)
stream.writeUInt16(self.request.size() - SIZEOF_UINT16)#overwrite seek(0)
self.updateUi()
if self.socket.isOpen():
self.socket.close()
self.responseLabel.setText("Connecting to server...")
self.socket.connectToHost("localhost", PORT)
def sendRequest(self):
self.responseLabel.setText("Sending request...")
self.nextBlockSize = 0
self.socket.write(self.request)
self.request = None
def readResponse(self):
stream = QDataStream(self.socket)
stream.setVersion(QDataStream.Qt_5_7)
while True:
if self.nextBlockSize == 0:
if self.socket.bytesAvailable() < SIZEOF_UINT16:
break
self.nextBlockSize = stream.readUInt16()
if self.socket.bytesAvailable() < self.nextBlockSize:
break
action = ""
room = ""
date = QDate()
#stream >> action >> room
action=stream.readQString()
room=stream.readQString()
if action != "ERROR":
stream >> date
if action == "ERROR":
msg = "Error: {0}".format(room)
elif action == "BOOK":
msg = "Booked room {0} for {1}".format(room,date.toString(Qt.ISODate))
elif action == "UNBOOK":
msg = "Unbooked room {0} for {1}".format(room,date.toString(Qt.ISODate))
self.responseLabel.setText(msg)
self.updateUi()
self.nextBlockSize = 0
def serverHasStopped(self):
self.responseLabel.setText(
"Error: Connection closed by server")
self.socket.close()
def serverHasError(self, error):
self.responseLabel.setText("Error: {0}".format(self.socket.errorString()))
self.socket.close()
app = QApplication(sys.argv)
form = BuildingServicesClient()
form.show()
app.exec_()以下為TCP服務(wù)端的程序代碼：
#!/usr/bin/env python3
import bisect
import collections
import sys
from PyQt5.QtCore import (QByteArray, QDataStream, QDate, QReadWriteLock, QThread,QIODevice, Qt)
from PyQt5.QtWidgets import (QApplication, QMessageBox, QPushButton)
from PyQt5.QtNetwork import (QAbstractSocket,QHostAddress, QTcpServer, QTcpSocket)
PORT = 9407
SIZEOF_UINT16 = 2
MAX_BOOKINGS_PER_DAY = 5
# Key = date, value = list of room IDs
Bookings = collections.defaultdict(list)
def printBookings():
for key in sorted(Bookings):
print(key, Bookings[key])
print()
class Thread(QThread):
lock = QReadWriteLock()
def __init__(self, socketId, parent):
super(Thread, self).__init__(parent)
self.socketId = socketId
def run(self):
socket = QTcpSocket()
if not socket.setSocketDescriptor(self.socketId):
#self.emit(SIGNAL("error(int)"), socket.error())
self.error.connect(socket.error)
return
while socket.state() == QAbstractSocket.ConnectedState:
nextBlockSize = 0
stream = QDataStream(socket)
stream.setVersion(QDataStream.Qt_5_7)
if (socket.waitForReadyRead() and
socket.bytesAvailable() >= SIZEOF_UINT16):
nextBlockSize = stream.readUInt16()
else:
self.sendError(socket, "Cannot read client request")
return
if socket.bytesAvailable() < nextBlockSize:
if (not socket.waitForReadyRead(60000) or
socket.bytesAvailable() < nextBlockSize):
self.sendError(socket, "Cannot read client data")
return
action = ""
room = ""
date = QDate()
action=stream.readQString()
if action in ("BOOK", "UNBOOK"):
room=stream.readQString()
stream >> date
try:
Thread.lock.lockForRead()
bookings = Bookings.get(date.toPyDate())
finally:
Thread.lock.unlock()
uroom = str(room)
if action == "BOOK":
newlist = False
try:
Thread.lock.lockForRead()
if bookings is None:
newlist = True
finally:
Thread.lock.unlock()
if newlist:
try:
Thread.lock.lockForWrite()
bookings = Bookings[date.toPyDate()]
finally:
Thread.lock.unlock()
error = None
insert = False
try:
Thread.lock.lockForRead()
if len(bookings) < MAX_BOOKINGS_PER_DAY:
if uroom in bookings:
error = "Cannot accept duplicate booking"
else:
insert = True
else:
error = "{0} is fully booked".format(date.toString(Qt.ISODate))
finally:
Thread.lock.unlock()
if insert:
try:
Thread.lock.lockForWrite()
bisect.insort(bookings, uroom)
finally:
Thread.lock.unlock()
self.sendReply(socket, action, room, date)
else:
self.sendError(socket, error)
elif action == "UNBOOK":
error = None
remove = False
try:
Thread.lock.lockForRead()
if bookings is None or uroom not in bookings:
error = "Cannot unbook nonexistent booking"
else:
remove = True
finally:
Thread.lock.unlock()
if remove:
try:
Thread.lock.lockForWrite()
bookings.remove(uroom)
finally:
Thread.lock.unlock()
self.sendReply(socket, action, room, date)
else:
self.sendError(socket, error)
else:
self.sendError(socket, "Unrecognized request")
socket.waitForDisconnected()
try:
Thread.lock.lockForRead()
printBookings()
finally:
Thread.lock.unlock()
def sendError(self, socket, msg):
reply = QByteArray()
stream = QDataStream(reply, QIODevice.WriteOnly)
stream.setVersion(QDataStream.Qt_5_7)
stream.writeUInt16(0)
stream.writeQString("ERROR")
stream.writeQString(msg)
stream.device().seek(0)
stream.writeUInt16(reply.size() - SIZEOF_UINT16)
socket.write(reply)
def sendReply(self, socket, action, room, date):
reply = QByteArray()
stream = QDataStream(reply, QIODevice.WriteOnly)
stream.setVersion(QDataStream.Qt_5_7)
stream.writeUInt16(0)
stream.writeQString(action)
stream.writeQString(room)
stream<= MAX_BOOKINGS_PER_DAY:
continue
bisect.insort(bookings, "{0:1d}{1:02d}".format(
floor, room))
printBookings()
app = QApplication(sys.argv)
form = BuildingServicesDlg()
form.show()
form.move(0, 0)
app.exec_() 以上是“python3+PyQt5如何創(chuàng)建多線程網(wǎng)絡(luò)應(yīng)用”這篇文章的所有內(nèi)容，感謝各位的閱讀！相信大家都有了一定的了解，希望分享的內(nèi)容對大家有所幫助，如果還想學(xué)習(xí)更多知識，歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道！
