本文实例讲述了Python实现的网页截图功能。分享给大家供大家参考,具体如下:
方法一、使用PyQt4的QtWebKit组件
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#!/usr/bin/env python # -*- coding: UTF-8 -*- import sys import os.path from PyQt4 import QtGui,QtCore,QtWebKit class PageShotter(QtGui.QWidget): def __init__( self ,url,filename,parent = None ): QtGui.QWidget.__init__( self ,parent) self .url = url self .filename = filename self .webpage = None def shot( self ): webview = QtWebKit.QWebView( self ) webview.load(QtCore.QUrl( self .url)) self .webpage = webview.page() self .connect(webview,QtCore.SIGNAL( "loadFinished(bool)" ), self .save_page) def save_page( self ,finished): #print finished if finished: print u "开始截图!" size = self .webpage.mainFrame().contentsSize() print u "页面宽:%d,页面高:%d" % (size.width(),size.height()) self .webpage.setViewportSize(QtCore.QSize(size.width() + 16 ,size.height())) img = QtGui.QImage(size, QtGui.QImage.Format_ARGB32) painter = QtGui.QPainter(img) self .webpage.mainFrame().render(painter) painter.end() filename = self .filename; if img.save(filename): filepath = os.path.join(os.path.dirname(__file__), filename) print u "截图完毕:%s" % filepath else : print u "截图失败" ; else : print u "网页加载失败!" self .close() if __name__ = = "__main__" : app = QtGui.QApplication(sys.argv) shotter.shot() sys.exit(app.exec_()) |
运行后输出:
QFont::setPixelSize: Pixel size <= 0 (0)
开始截图!
页面宽:1058,页面高:9819
截图完毕:C:\py\jb51PyDemo\src\Demo\shot.png
注:
Python2的32位操作系统安装包
64位操作系统下对应PyQt安装包
Python3可直接使用pip命令安装PyQt5库,如:
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pip3 install PyQt5 - sip |
方法二、使用selenium
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#!/usr/bin/env python # -*- coding: UTF-8 -*- import time from selenium import webdriver browser = webdriver.Firefox() browser.set_window_size( 1055 , 800 ) browser.find_element_by_id( "idClose" ).click() time.sleep( 5 ) browser.save_screenshot( "shot.png" ) browser.quit() |
PS:selenium
库同样可以使用pip命令安装:
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pip install selenium |
另外,使用selenium时还需要下载geckodriver来驱动第三方浏览器,对于selenium3.x版本都会使用geckodriver来驱动firefox,所以需要下载geckodriver.exe,下载地址:https://github.com/mozilla/geckodriver/releases
下载后将geckodriver.exe放在C:\Python27即可(查看环境变量path中是否添加C:\Python27该路径)
希望本文所述对大家Python程序设计有所帮助。
原文链接:https://blog.csdn.net/wang1472jian1110/article/details/72642605