使用pyQT5顯示網(wǎng)頁的實現(xiàn)步驟
發(fā)布日期：2021-12-24 13:52 | 文章來源：腳本之家
開發(fā)環(huán)境配置請參考博文：
【python】在PyCharm中使用pyQT5進行GUI開發(fā)的基本流程
1、PyQTWebEngine安裝庫
加載網(wǎng)頁需要使用PyQTWebEngine庫，可以使用import PyQt5.QtWebEngineWidgets測試是否有這個庫，如果沒有，需要先安裝
pip install PyQtWebEngine -i https://pypi.douban.com/simple/
2、設(shè)計窗體
在QT Designer里面，沒有WebEngine窗體，只能在程序中創(chuàng)建，先將其他的部分放好。
這兒放置了一個LineEdit，用于輸入網(wǎng)址，一個按鈕
3、生成代碼
使用pyUIC生成代碼，生成的代碼為：
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'web.ui'
#
# Created by: PyQt5 UI code generator 5.15.4
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again. Do not edit this file unless you know what you are doing.
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(1200, 700)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
self.lineEdit.setGeometry(QtCore.QRect(20, 10, 631, 31))
self.lineEdit.setObjectName("lineEdit")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(690, 10, 90, 30))
self.pushButton.setObjectName("pushButton")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 1200, 23))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.lineEdit.setText(_translate("MainWindow", "http://www.baidu.com"))
self.pushButton.setText(_translate("MainWindow", "打開"))
4、添加代碼
引入庫文件
from PyQt5 import QtCore, QtGui, QtWidgets,QtWebEngineWidgets
1、添加WebEngine窗體
## 創(chuàng)建web窗體 self.qwebengine = QtWebEngineWidgets.QWebEngineView(MainWindow) self.qwebengine.setGeometry(20, 50, 1600, 600)
2、創(chuàng)建按鈕功能
## 創(chuàng)建連接 self.pushButton.clicked.connect(self.open_url)
3、編寫按鈕函數(shù)
def open_url(self): url=self.lineEdit.text() self.qwebengine.load(QtCore.QUrl(url))
4、添加啟動程序
import sys if __name__ == '__main__': app = QtWidgets.QApplication(sys.argv) MainWindow = QtWidgets.QMainWindow() # 創(chuàng)建窗體對象 ui = Ui_MainWindow() # 創(chuàng)建PyQt設(shè)計的窗體對象 ui.setupUi(MainWindow) # 調(diào)用窗體的方法對對象進行初始化設(shè)置 MainWindow.show() # 顯示窗體 sys.exit(app.exec_()) # 程序關(guān)閉時退出進程
5、完整代碼
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'web.ui'
#
# Created by: PyQt5 UI code generator 5.15.4
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again. Do not edit this file unless you know what you are doing.
from PyQt5 import QtCore, QtGui, QtWidgets,QtWebEngineWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("打開網(wǎng)頁")
MainWindow.resize(1640, 700)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
self.lineEdit.setGeometry(QtCore.QRect(20, 10, 630, 30))
self.lineEdit.setObjectName("lineEdit")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(690, 10, 90, 30))
self.pushButton.setObjectName("pushButton")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 1200, 23))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
## 創(chuàng)建web窗體
self.qwebengine = QtWebEngineWidgets.QWebEngineView(MainWindow)
self.qwebengine.setGeometry(20, 50, 1600, 600)
## 創(chuàng)建連接
self.pushButton.clicked.connect(self.open_url)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "打開網(wǎng)頁"))
self.lineEdit.setText(_translate("MainWindow", "http://www.baidu.com"))
self.pushButton.setText(_translate("MainWindow", "打開"))
def open_url(self):
url=self.lineEdit.text()
self.qwebengine.load(QtCore.QUrl(url))
import sys
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow() # 創(chuàng)建窗體對象
ui = Ui_MainWindow() # 創(chuàng)建PyQt設(shè)計的窗體對象
ui.setupUi(MainWindow) # 調(diào)用窗體的方法對對象進行初始化設(shè)置
MainWindow.show() # 顯示窗體
sys.exit(app.exec_()) # 程序關(guān)閉時退出進程
6、運行
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