ChromeDriver无法在Centos 7上无头工作

时间:2018-05-29 22:45:05

标签: java selenium selenium-chromedriver

尝试让Selenium Testing与Chrome Headless一起使用(我们目前正在使用远程selenium web驱动程序,它工作正常,但速度很慢)。 ChromeDriver实例化为:

ChromeOptions chromeOptions = new ChromeOptions();
chromeOptions.setBinary("/usr/bin/google-chrome");   
chromeOptions.addArguments("--headless", "--window-size=1920x1080");
chromeOptions.setHeadless(true);

Map<String, Object> prefs = new HashMap<>();
prefs.put("credentials_enable_service", false);
prefs.put("password_manager_enabled", false);
chromeOptions.setExperimentalOption("prefs", prefs);

System.setProperty("webdriver.chrome.verboseLogging", "true");

dr = new ChromeDriver(chromeOptions);

(我已经尝试过它只使用setHeadless,并且只使用--headless作为参数,我认为我应该双重确定所以代码目前包括两者)。日志显示:

Starting ChromeDriver (v2.9.248304) on port 1848
[0.705][INFO]: COMMAND InitSession {
   "capabilities": {
      "desiredCapabilities": {
         "browserName": "chrome",
         "goog:chromeOptions": {
            "args": [ "--headless", "--disable-gpu", "--window-size=1920x1080" ],
            "binary": "/usr/bin/google-chrome",
            "extensions": [  ],
            "prefs": {
               "credentials_enable_service": false,
               "password_manager_enabled": false
            }
         }
      },
      "firstMatch": [ {
         "browserName": "chrome",
         "goog:chromeOptions": {
            "args": [ "--headless", "--disable-gpu", "--window-size=1920x1080" ],
            "binary": "/usr/bin/google-chrome",
            "extensions": [  ],
            "prefs": {
               "credentials_enable_service": false,
               "password_manager_enabled": false
            }
         }
      } ]
   },
   "desiredCapabilities": {
      "browserName": "chrome",
      "goog:chromeOptions": {
         "args": [ "--headless", "--disable-gpu", "--window-size=1920x1080" ],
         "binary": "/usr/bin/google-chrome",
         "extensions": [  ],
         "prefs": {
            "credentials_enable_service": false,
            "password_manager_enabled": false
         }
      }
   }
}
[0.708][INFO]: Populating Preferences file: {
   "alternate_error_pages": {
      "enabled": false
   },
   "autofill": {
      "enabled": false
   },
   "browser": {
      "check_default_browser": false
   },
   "distribution": {
      "import_bookmarks": false,
      "import_history": false,
      "import_search_engine": false,
      "make_chrome_default_for_user": false,
      "show_welcome_page": false,
      "skip_first_run_ui": true
   },
   "dns_prefetching": {
      "enabled": false
   },
   "profile": {
      "content_settings": {
         "pattern_pairs": {
            "https://*,*": {
               "media-stream": {
                  "audio": "Default",
                  "video": "Default"
               }
            }
         }
      },
      "default_content_settings": {
         "geolocation": 1,
         "mouselock": 1,
         "notifications": 1,
         "popups": 1,
         "ppapi-broker": 1
      },
      "password_manager_enabled": false
   },
   "safebrowsing": {
      "enabled": false
   },
   "search": {
      "suggest_enabled": false
   },
   "translate": {
      "enabled": false
   }
}
[0.708][INFO]: Populating Local State file: {
   "background_mode": {
      "enabled": false
   },
   "ssl": {
      "rev_checking": {
         "enabled": false
      }
   }
}
[0.712][INFO]: Launching chrome: /opt/google/chrome/google-chrome --disable-background-networking --disable-client-side-phishing-detection --disable-component-update --disable-default-apps --disable-hang-monitor --disable-prompt-on-repost --disable-sync --disable-web-resources --enable-logging --full-memory-crash-report --ignore-certificate-errors --load-extension=/tmp/.com.google.Chrome.ZsjTh0/internal --logging-level=1 --metrics-recording-only --no-first-run --password-store=basic --remote-debugging-port=12771 --safebrowsing-disable-auto-update --safebrowsing-disable-download-protection --use-mock-keychain --user-data-dir=/tmp/.com.google.Chrome.lVGXx8 data:,
[0.714][DEBUG]: DevTools request: http://127.0.0.1:12771/json/version
[0.732][WARNING]: PAC support disabled because there is no system implementation
[1.457][DEBUG]: DevTools request failed
[1.507][DEBUG]: DevTools request: http://127.0.0.1:12771/json/version
[1.514][DEBUG]: DevTools request failed
[1.564][DEBUG]: DevTools request: http://127.0.0.1:12771/json/version
[1.569][DEBUG]: DevTools request failed
[1.620][DEBUG]: DevTools request: http://127.0.0.1:12771/json/version
[1.624][DEBUG]: DevTools request failed
[1.674][DEBUG]: DevTools request: http://127.0.0.1:12771/json/version
[1.678][DEBUG]: DevTools request failed
[1.728][DEBUG]: DevTools request: http://127.0.0.1:12771/json/version
[1.732][DEBUG]: DevTools request failed
[1.782][DEBUG]: DevTools request: http://127.0.0.1:12771/json/version
[1.786][DEBUG]: DevTools request failed

(google-chrome:1887): Gtk-WARNING **: cannot open display:

然后又多了一点“DevTools请求:http://127.0.0.1:12771/json/version,DevTools请求失败”行(数百和数百)。

我尝试过使用Selenium 3.7.1,然后尝试更新到Selenium 3.12.0,输出没有变化。

Chrome已安装(版本66.0.3359.181),与ChromeDriver(v2.9.248304)一样,整个过程都在Centos 7上,没有Window Manager。虽然ChromeDriver似乎是启动Chrome的命令行失败,但命令行失败:

$ /opt/google/chrome/google-chrome --disable-background-networking --disable-client-side-phishing-detection --disable-component-update --disable-default-apps --disable-hang-monitor --disable-prompt-on-repost --disable-sync --disable-web-resources --enable-logging --full-memory-crash-report --ignore-certificate-errors --load-extension=/tmp/.com.google.Chrome.ZsjTh0/internal --logging-level=1 --metrics-recording-only --no-first-run --password-store=basic --remote-debugging-port=12771 --safebrowsing-disable-auto-update --safebrowsing-disable-download-protection --use-mock-keychain --user-data-dir=/tmp/.com.google.Chrome.lVGXx8 data:,

(google-chrome:3346): Gtk-WARNING **: cannot open display:
如果我添加 - 无线,它会成功。

$ /opt/google/chrome/google-chrome --headless --disable-background-networking --disable-client-side-phishing-detection --disable-component-update --disable-default-apps --disable-hang-monitor --disable-prompt-on-repost --disable-sync --disable-web-resources --enable-logging --full-memory-crash-report --ignore-certificate-errors --load-extension=/tmp/.com.google.Chrome.ZsjTh0/internal --logging-level=1 --metrics-recording-only --no-first-run --password-store=basic --remote-debugging-port=12771 --safebrowsing-disable-auto-update --safebrowsing-disable-download-protection --use-mock-keychain --user-data-dir=/tmp/.com.google.Chrome.lVGXx8 data:,
[0529/154351.972190:ERROR:gpu_process_transport_factory.cc(1007)] Lost UI shared context.

DevTools listening on ws://127.0.0.1:12771/devtools/browser/a008b11c-d1c3-4c56-ba28-7f221eed4507
Fontconfig warning: "/etc/fonts/fonts.conf", line 146: blank doesn't take any effect anymore. please remove it from your fonts.conf

此设置在我的Windows框中正常工作(但我的Windows框上的启动Chrome请求确实包含--headless参数)。我不确定为什么ChromeDriver在启动时似乎没有将任何chromeOptions(--headless, - disable-gpu或--window = 1920x1024)传递给chrome进程。

任何帮助将不胜感激......

1 个答案:

答案 0 :(得分:0)

您的代码块几乎是完美的。有几件事:

  • 如果查看setHeadless()的源代码,--headless标志已经实现。因此明确设置addArguments("--headless")将是开销。你可以删除参数。

    def set_headless(self, headless=True):
        """
        Sets the headless argument
    
        Args:
          headless: boolean value indicating to set the headless option
        """
        args = {'--headless', '--disable-gpu'}
        if headless:
            self._arguments.extend(args)
        else:
            self._arguments = list(set(self._arguments) - args)
    
  • 但是,您使用的二进制版本中的主要问题是不兼容,如下所示:

    • 您正在使用 chromedriver = 2.9
    • chromedriver=2.9的发行说明明确提到以下内容:

    •   

      支持 Chrome v31-34

    • 您正在使用 chrome = 66.0

    • ChromeDriver v2.38的发行说明明确提到以下内容:

    •   

      支持 Chrome v65-67

  • 因此 ChromeDriver v2.9 Chrome浏览器 v66.0之间存在明显的不匹配

解决方案

  • JDK 升级到最近的级别JDK 8u171
  • Selenium 升级到当前级别Version 3.12.0
  • ChromeDriver 升级到当前ChromeDriver v2.38级别。
  • Chrome 版本保留在 Chrome v66.x 级别。 (as per ChromeDriver v2.38 release notes
  • 通过 IDE 清理您的项目工作区仅使用所需的依赖项重建项目
  • 使用CCleaner工具清除执行测试套件之前和之后的所有操作系统杂务。
  • 如果您的基本 Web客户端版本太旧,请通过Revo Uninstaller将其卸载并安装最新的GA和已发布的 Web客户端版本。
  • 进行系统重启
  • 执行@Test