centos7.4 實例

利用 yum 命令安裝 google-chrome 超級簡單（安裝最新版）：

yum install https://dl.google.com/linux/direct/google-chrome-stable_current_x86_64.rpm

chromedriver 也下載最新版就好，和Mac 版本一樣，我依舊選擇這個最新版本：

http://chromedriver.storage.googleapis.com/index.html?path=70.0.3538.16/

Python3.7 之前安裝過：

然後配置一下，就能跑起來 selenium 項目了，當然該 pip install xxx 安裝模塊就缺什麽安裝什麽了

# 設置 webdriver 參數
        options = webdriver.ChromeOptions()
        # 設置谷歌瀏覽器的一些選項
        #  proxy 代理 options 選項
        options.add_argument(r‘--proxy--server=http:\\‘ + ip)
        uas = get_uas()
        # 設置user-agent
        options.add_argument(‘user-agent=‘ + choice(uas))
        # 以 headless 方案運行
 

        options.add_argument(‘--headless‘)
        options.add_argument(‘--no-sandbox‘)
        # options.add_argument(‘--disable-dev-shm-usage‘)
        # 禁用圖片訪問
        # prefs = {"profile.managed_default_content_settings.images": 2}
        # options.add_experimental_option("prefs", prefs)

如果不配置 # 以 headless 方案運行

會拋出下面異常

[root@iZwz9117d4ssv2v5oe81m3Z selenium_baidu]# python testRun.py
package_util 初始化
testRun.py:32: DeprecationWarning: use options instead of chrome_options
  driver = webdriver.Chrome(path, chrome_options=options)
Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/python/lib/python3.7/threading.py", line 917, in _bootstrap_inner
    self.run()
  File "/usr/python/lib/python3.7/threading.py", line 865, in run
    self._target(*self._args, **self._kwargs)
  File "testRun.py", line 32, in get_url
    driver = webdriver.Chrome(path, chrome_options=options)
  File "/usr/python/lib/python3.7/site-packages/selenium/webdriver/chrome/webdriver.py", line 81, in __init__
    desired_capabilities=desired_capabilities)
  File "/usr/python/lib/python3.7/site-packages/selenium/webdriver/remote/webdriver.py", line 157, in __init__
    self.start_session(capabilities, browser_profile)
  File "/usr/python/lib/python3.7/site-packages/selenium/webdriver/remote/webdriver.py", line 252, in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
  File "/usr/python/lib/python3.7/site-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "/usr/python/lib/python3.7/site-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: exited abnormally
  (unknown error: DevToolsActivePort file doesn‘t exist)
  (The process started from chrome location /usr/bin/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
  (Driver info: chromedriver=70.0.3538.16 (16ed95b41bb05e565b11fb66ac33c660b721f778),platform=Linux 3.10.0-693.2.2.el7.x86_64 x86_64)
 

selenium 代碼正確運行：

centos7.4 64位安裝 google-chrome 與 chromedriver 運行 Python selenium 項目