如何解决如何在pyqt5文本浏览器上打印连续数据
我创建了一个手动网络套接字并且我卡住了。 查询)如果按下连接(此处为关闭)按钮(创建连接),如果再次按下按钮,则如何在 pyqt5 GUI 的文本浏览器上打印从服务器接收的连续/实时数据,如果再次按下按钮,它应该被切换,即它应该停止接收数据(连接关闭)。
我的代码是
from PyQt5 import QtCore,QtGui,QtWidgets
from websocket import create_connection
class Ui_MainWindow(object):
def connect(self,MainWindow):
ws = create_connection("ws://192.168.0.205/ws")
self.textBrowser_2.append("Connection created")
while 1:
self.textBrowser_2.append(ws.recv())
print(ws.recv())
def setupUi(self,MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(800,600)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(700,70,81,61))
font = QtGui.QFont()
font.setBold(True)
font.setWeight(75)
self.pushButton.setFont(font)
self.pushButton.setObjectName("pushButton")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(50,191,51))
font = QtGui.QFont()
font.setPointSize(12)
font.setBold(True)
font.setWeight(75)
self.label.setFont(font)
self.label.setObjectName("label")
self.label_2 = QtWidgets.QLabel(self.centralwidget)
self.label_2.setGeometry(QtCore.QRect(30,60,51))
font = QtGui.QFont()
font.setPointSize(12)
font.setBold(True)
font.setWeight(75)
self.label_2.setFont(font)
self.label_2.setObjectName("label_2")
self.label_3 = QtWidgets.QLabel(self.centralwidget)
self.label_3.setGeometry(QtCore.QRect(160,130,141,81))
font = QtGui.QFont()
font.setPointSize(12)
font.setBold(True)
font.setWeight(75)
self.label_3.setFont(font)
self.label_3.setObjectName("label_3")
self.label_4 = QtWidgets.QLabel(self.centralwidget)
self.label_4.setGeometry(QtCore.QRect(20,200,201,61))
font = QtGui.QFont()
font.setPointSize(12)
font.setBold(True)
font.setWeight(75)
self.label_4.setFont(font)
self.label_4.setObjectName("label_4")
self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_2.setGeometry(QtCore.QRect(690,260,51))
font = QtGui.QFont()
font.setPointSize(12)
font.setBold(True)
font.setWeight(75)
self.pushButton_2.setFont(font)
self.pushButton_2.setObjectName("pushButton_2")
self.label_5 = QtWidgets.QLabel(self.centralwidget)
self.label_5.setGeometry(QtCore.QRect(20,330,251,21))
font = QtGui.QFont()
font.setPointSize(12)
font.setBold(True)
font.setWeight(75)
self.label_5.setFont(font)
self.label_5.setObjectName("label_5")
self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
self.lineEdit.setGeometry(QtCore.QRect(82,601,61))
self.lineEdit.setObjectName("lineEdit")
self.lineEdit_2 = QtWidgets.QLineEdit(self.centralwidget)
self.lineEdit_2.setGeometry(QtCore.QRect(20,250,651,71))
self.lineEdit_2.setObjectName("lineEdit_2")
self.textBrowser = QtWidgets.QTextBrowser(self.centralwidget)
self.textBrowser.setGeometry(QtCore.QRect(260,150,381,51))
self.textBrowser.setObjectName("textBrowser")
self.textBrowser_2 = QtWidgets.QTextBrowser(self.centralwidget)
self.textBrowser_2.setGeometry(QtCore.QRect(30,360,731,192))
self.textBrowser_2.setObjectName("textBrowser_2")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0,800,21))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.pushButton.clicked.connect(self.connect)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self,MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow","MainWindow"))
self.pushButton.setText(_translate("MainWindow","Close"))
self.label.setText(_translate("MainWindow","Server loaction"))
self.label_2.setText(_translate("MainWindow","URL"))
self.label_3.setText(_translate("MainWindow","Status :"))
self.label_4.setText(_translate("MainWindow","Request"))
self.pushButton_2.setText(_translate("MainWindow","Send"))
self.label_5.setText(_translate("MainWindow","Message Log"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
解决方法
首先,不要修改 QtDesigner 生成的代码,因此要应用我的解决方案,您必须重新生成 .py 文件并将其命名为 gui.py:pyuic5 filename.ui -o gui.py -x
。
另一方面,不要使用 websocket 模块,因为它是为同步逻辑设计的,在这种情况下,最好使用 QtWebSockets 模块,它允许您使用 Qt 事件循环与 websocket 进行交互。
import sys
from PyQt5 import QtCore,QtWidgets,QtWebSockets
from gui import Ui_MainWindow
class MainWindow(QtWidgets.QMainWindow):
def __init__(self,parent=None):
super().__init__(parent)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.socket = QtWebSockets.QWebSocket()
self.socket.textMessageReceived.connect(self.handle_text_message_received)
self.ui.pushButton.clicked.connect(self.connect_to_websocket)
def connect_to_websocket(self):
if self.socket.state() == QtNetwork.QAbstractSocket.UnconnectedState:
url = "ws://192.168.0.205/ws"
self.socket.open(QtCore.QUrl(url))
elif self.socket.state() == QtNetwork.QAbstractSocket.ConnectedState:
self.socket.close()
def handle_text_message_received(self,message):
self.ui.textBrowser_2.append(message)
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
w = MainWindow()
w.show()
sys.exit(app.exec_())
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