如何在pyqt5文本浏览器上打印连续数据

Question

我创建了一个手动web套接字，我卡住了。查询)如何在pyqt5 GUI中打印从服务器上的文本浏览器接收的连续/实时数据，如果连接(此处名称关闭)按钮被按下(创建连接)，如果按钮再次被按下，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, 0, 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, 81, 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, 81, 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, 70, 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, 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_())

Answer 1

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websockets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_())