我有在本地计算机上使用的以下代码:
from selenium import webdriver
chrom_path = r"C:\Users\user\sof\chromedriver_win32\chromedriver.exe"
driver = webdriver.Chrome(chrom_path)
link = 'https://www.google.com/'
driver.get(link)
s = driver.page_source
print((s.encode("utf-8")))
driver.quit()
并且此代码返回了该网站的页面源,但是当我在Linux服务器centos7上使用以下代码时:
from selenium import webdriver
options = webdriver.ChromeOptions()
options.add_argument('--headless')
options.add_argument('--disable-gpu')
options.add_argument('--no-sandbox')
driver = webdriver.Chrome(executable_path="/usr/local/bin/chromedriver", chrome_options=options)
driver.get("https://www.google.com")
s = driver.page_source
print((s.encode("utf-8")))
driver.quit()
此代码还应该返回页面源,但是此代码返回以下内容:
b'<html><head>\n<title>Access Denied</title>\n</head><body>\n<h1>Access Denied</h1>\n \nYou don\'t have permission to access "http://www.newark.com/" on this server.<p>\nReference #18.456cd417.1576243477.e007b9f\n\n\n</p></body></html>'
有人知道为什么相同的代码在不同的操作系统上会有不同的工作吗?
根据您在 Windows 本地计算机上的代码试用, 无头 Chrome 可以完美运行,而在使用 无头Chrome的
Linux服务器centos7上,您将被重定向到“ 访问被拒绝” 页面。
<html><head>\n<title>Access Denied</title>\n</head><body>\n<h1>Access Denied</h1>\n \nYou don\'t have permission to access "http://www.newark.com/" on this server.<p>\nReference #18.456cd417.1576243477.e007b9f\n\n\n</p></body></html>
根据文章如何使用无头Chrome浏览器绕过“拒绝访问”页面一文,无头运行与以头模式运行时,Chrome之间存在一些差异。核心网络堆栈相同,并且浏览器在数据包级别传输请求的方式没有差异,这使我们仅了解请求的内容。在检查无头Chrome浏览器发出的请求时,发现
无头Chrome 通过其User-Agent 标头 让自己知道。标题 Chrome 的标题几乎与减去类似Headless
。
在 无头的Chrome 用户代理是:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/71.0.3578.98 Safari/537.36
因此,一种精确的解决方案是将用户代理设置为Chrome。 Chrome v79.x 的用户代理为:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.79 Safari/537.36
您可以按照以下步骤修改代码并执行:
from selenium import webdriver
options = webdriver.ChromeOptions()
options.add_argument('--headless')
options.add_argument('--no-sandbox')
options.add_argument(f'user-agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.79 Safari/537.36')
driver = webdriver.Chrome(executable_path="/usr/local/bin/chromedriver", chrome_options=options)
driver.get("https://www.google.com")
s = driver.page_source
print((s.encode("utf-8")))
driver.quit()
在Windows-10框上执行的结果:
from selenium import webdriver
options = webdriver.ChromeOptions()
options.add_argument("start-maximized")
options.add_argument('--headless')
options.add_argument('--no-sandbox')
options.add_argument(f'user-agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.79 Safari/537.36')
options.add_experimental_option("excludeSwitches", ["enable-automation"])
options.add_experimental_option('useAutomationExtension', False)
driver = webdriver.Chrome(options=options, executable_path=r'C:\WebDrivers\chromedriver.exe')
driver.get("https://www.google.com")
s = driver.page_source
print((s.encode("utf-8")))
driver.quit()
[1214/041553.069:INFO:CONSOLE(0)] "A cookie associated with a resource at http://google.com/ was set with `SameSite=None` but without `Secure`. A future release of Chrome will only deliver cookies marked `SameSite=None` if they are also marked `Secure`. You can review cookies in developer tools under Application>Storage>Cookies and see more details at https://www.chromestatus.com/feature/5633521622188032.", source: data:, (0)
[1214/041553.165:INFO:CONSOLE(0)] "A cookie associated with a resource at http://google.com/ was set with `SameSite=None` but without `Secure`. A future release of Chrome will only deliver cookies marked `SameSite=None` if they are also marked `Secure`. You can review cookies in developer tools under Application>Storage>Cookies and see more details at https://www.chromestatus.com/feature/5633521622188032.", source: https://www.google.com/ (0)
[1214/041555.336:INFO:CONSOLE(0)] "A cookie associated with a cross-site resource at http://google.co.in/ was set without the `SameSite` attribute. A future release of Chrome will only deliver cookies with cross-site requests if they are set with `SameSite=None` and `Secure`. You can review cookies in developer tools under Application>Storage>Cookies and see more details at https://www.chromestatus.com/feature/5088147346030592 and https://www.chromestatus.com/feature/5633521622188032.", source: https://www.google.com/ (0)
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我想使用下面页面弹出窗口上的滚动条。如果您单击页面上的任何产品,它将打开一个弹出窗口,您可以在其中添加额外的项目。我正在尝试使用向下滚动弹出窗口,但在Chrome中找不到滚动条元素。我曾尝试使用其他方法移动到元素,但没有成功,所以我想尝试使用箭头键。 https://www . just-eat . co . uk/restaurants-McDonalds-Victoria London/men
最近买了一台mac,能够毫无问题地运行Mozilla,但在安装Chrome扩展和运行硒时遇到了麻烦。有人能指导我在Mac Chrome上安装扩展和运行硒的过程吗?
案例1: 使用时: 获取异常: 看到的超文本标记语言套件异常:java.lang.RuntimeException:java.lang.RuntimeException: GoogleChrome在路径中找不到!请将包含“chrome.exe”或“google-chrome”或“GoogleChrome”的目录添加到您的PATH环境可用,或显式指定GoogleChrome路径,如下所示:*goog
我刚开始学习Selenium,需要使用云中的jenkins机器验证登录网页,该机器没有GUI。我成功地在有UI的系统上运行了脚本。然而,当我将脚本修改为运行headless时,它无法表示无法定位元素。我的脚本如下: 当不使用chrome_options时,python脚本在我的系统上运行良好。但是在将它们添加到无头模式下运行时,它会失败,输出如下: 由于我对Selenium有大约一天的学习时间,我
问题内容: 我正在尝试在Ubuntu 16.10 Server上运行Selenium,但是却遇到了WebDriverException:消息:无法访问chrome(驱动程序信息:chromedriver 2.9.248304,平台= Linux 4.8.0-22-通用x86_64) Chrome已安装: 谷歌浏览器57.0.2987.110 问题答案: 添加一些镀铬选项有帮助!