繁体   English   中英

org.openqa.selenium.WebDriverException:使用Selenium Java和Webdriver时连接被拒绝(Linux头没有Xvfb)

[英]org.openqa.selenium.WebDriverException: connection refused while using Selenium Java and webdriver (linux headless with Xvfb)

最近,我得到了一个新的虚拟服务器,由于几天以来我一直在尝试对其进行配置,以使基于Java(8)的硒Web应用程序能够运行。 该webapp在Tomcat(8.5.31)中运行,并使用硒进行一些基本的网站抓取。 服务器的操作系统是gentoo(在我拥有运行良好的debian系统之前)

我已经花了几天的时间来使它工作,但现在我陷入了以下错误:

1526203737341   geckodriver     INFO    geckodriver 0.20.1
1526203737367   geckodriver     INFO    Listening on 127.0.0.1:25016
1526203737796   mozrunner::runner       INFO    Running command: "/usr/bin/firefox-bin" "-marionette" "-profile" "/tmp/rust_mozprofile.ESuH8rdqpwT8"
1526203737802   geckodriver::marionette DEBUG   Waiting 60s to connect to browser
1526203739872   Marionette      INFO    Listening on port 2828
1526203797867   webdriver::server       DEBUG   <- 500 Internal Server Error {"value":{"error":"unknown error","message":"connection refused","stacktrace":""}}
11:29:57.944 [pool-2-thread-1] ERROR test.Test - Exception occured while processing.
org.openqa.selenium.WebDriverException: connection refused
Build info: version: '3.12.0', revision: '7c6e0b3', time: '2018-05-08T14:04:26.12Z'
System info: host: 'gentoo', ip: 'xxx.xxx.xxx.xxx', os.name: 'Linux', os.arch: 'amd64', os.version: '4.9.95-gentoo', java.version: '1.8.0_172'
Driver info: driver.version: FirefoxDriver

这是进程列表显示的内容:

root      7808     1  0 14:36 ?        00:00:00   /usr/bin/Xvfb :99 -screen 0 1600x1200x24 -auth /etc/conf.d/Xvfb.cfg -listen tcp
tomcat    7863     1 59 14:38 ?        00:00:51   /etc/java-config-2/current-system-vm/bin/java -Djava.util.logging.config.file=/opt/tomcat8/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderL
tomcat    7923  7863  0 14:38 ?        00:00:00     /opt/geckodriver --port=31399 -b /usr/bin/firefox-bin
tomcat    7943  7923  6 14:38 ?        00:00:04       /opt/firefox/firefox -marionette --headless -profile /tmp/rust_mozprofile.qpQfCj8DR1ab
tomcat    8032  7943  0 14:38 ?        00:00:00         /opt/firefox/plugin-container -greomni /opt/firefox/omni.ja -appomni /opt/firefox/browser/omni.ja -appdir /opt/firefox/browser 7943 true tab
tomcat    7977     1  0 14:38 ?        00:00:00   dbus-launch --autolaunch 32b951aa6b930bec1f195b765af588f5 --binary-syntax --close-stderr
tomcat    7978     1  0 14:38 ?        00:00:00   /usr/bin/dbus-daemon --fork --print-pid 5 --print-address 7 --session
tomcat    7993     1  0 14:38 ?        00:00:00   /usr/libexec/gconfd-2

用于创建Firefox实例的代码(使用更详细的日志级别以获取有关该问题的更多信息):

    System.setProperty("webdriver.gecko.driver", driverGeckoPath);

    LoggingPreferences loggingPrefs = new LoggingPreferences();
    loggingPrefs.enable(LogType.BROWSER, Level.ALL);
    loggingPrefs.enable(LogType.CLIENT, Level.ALL);
    loggingPrefs.enable(LogType.DRIVER, Level.ALL);
    loggingPrefs.enable(LogType.PERFORMANCE, Level.ALL);
    loggingPrefs.enable(LogType.PROFILER, Level.ALL);
    loggingPrefs.enable(LogType.SERVER, Level.ALL);

    DesiredCapabilities desiredCapabilities = new DesiredCapabilities();
    desiredCapabilities.setCapability("marionette", true);
    desiredCapabilities.setCapability(CapabilityType.ACCEPT_SSL_CERTS, true);
    desiredCapabilities.setCapability(CapabilityType.LOGGING_PREFS, loggingPrefs);

    FirefoxOptions options = new FirefoxOptions(desiredCapabilities);
    options.setLogLevel(FirefoxDriverLogLevel.TRACE);

    driver = new FirefoxDriver(options);

geckodriver位于/ opt /中,并且是可执行的。

我当前的设置/配置


所有组件都具有版本3.12.0(Selenium-java,selenium-remote-driver,selenium-firefox-driver,selenium-api)

火狐浏览器
版本60.0

壁虎
20.1版

Xvfb配置

XVFB=/usr/bin/Xvfb
XVFBARGS=":99 -screen 0 1600x1200x24 -auth /etc/conf.d/Xvfb.cfg -nolisten tcp"
PIDFILE=/var/run/Xvfb.pid

Xvfb配置

localhost

Xvfb init.d脚本

start() {
        ebegin "Starting virtual X frame buffer: Xvfb"
        start-stop-daemon --start --pidfile $PIDFILE --make-pidfile --background --exec $XVFB -- $XVFBARGS
        eend ${?}
}

stop() {
        ebegin  "Stopping virtual X frame buffer: Xvfb"
        start-stop-daemon --stop --pidfile $PIDFILE
        eend ${?}
}

导出显示变量 (在所有用户启动时初始化):

DISPLAY=:99

/etc/conf.d/主机名

gentoo

/ etc / hosts

127.0.0.1       gentoo
127.0.0.1       localhost
::1             localhost


非常感谢任何提示/技巧,以获取有关如何调试/解决此问题的更多信息...


更新1

我尝试用有趣ChromeDriver运行我的硒组件。 编码:

  System.setProperty("webdriver.chrome.driver", "/opt/chromedriver");
  driver = new ChromeDriver();

日志显示:

Starting ChromeDriver 2.38.552522 (437e6fbedfa8762dec75e2c5b3ddb86763dc9dcb) on port 24646
Only local connections are allowed.


更新2

当我在本地环境(配置类似/ gentoo)中运行应用程序时,一切正常。 但是我不是在这里使用Xvfb,而是在xorg服务器上使用。 这是日志记录输出:

1526217622830   geckodriver INFO    geckodriver 0.20.1
1526217622833   geckodriver INFO    Listening on 127.0.0.1:12500
1526217622955   mozrunner::runner   INFO    Running command: "/usr/bin/firefox-bin" "-marionette" "-profile" "/tmp/rust_mozprofile.AZMw0iETRqFj"
1526217622955   geckodriver::marionette DEBUG   Waiting 60s to connect to browser
1526217623246   Marionette  DEBUG   Received observer notification profile-after-change
1526217623372   Marionette  DEBUG   Received observer notification command-line-startup
1526217623372   Marionette  DEBUG   Received observer notification nsPref:changed
1526217624744   Marionette  DEBUG   Received observer notification sessionstore-windows-restored
1526217624816   Marionette  DEBUG   Setting recommended pref toolkit.cosmeticAnimations.enabled to false
1526217624816   Marionette  DEBUG   Setting recommended pref datareporting.policy.dataSubmissionPolicyAccepted to false
1526217624816   Marionette  DEBUG   Setting recommended pref extensions.shield-recipe-client.api_url to 
1526217624847   Marionette  DEBUG   New connections are accepted
1526217624848   Marionette  INFO    Listening on port 34253
1526217624860   geckodriver::marionette DEBUG   Connected to Marionette on localhost:34253
1526217624868   Marionette  DEBUG   Accepted connection 0 from 127.0.0.1:56070

对我来说,这似乎是木偶和壁虎驱动程序之间的连接问题。 可能是港口问题吗? 在服务器上,木偶似乎总是在端口2828上侦听,在我的本地计算机上,它似乎总是一个随机端口...

此错误消息...

1526203737802   geckodriver::marionette DEBUG   Waiting 60s to connect to browser
1526203739872   Marionette      INFO    Listening on port 2828
1526203797867   webdriver::server       DEBUG   <- 500 Internal Server Error {"value":{"error":"unknown error","message":"connection refused","stacktrace":""}}
11:29:57.944 [pool-2-thread-1] ERROR test.test.test.test.test.Test - Exception occured while processing.
org.openqa.selenium.WebDriverException: connection refused

...表示GeckoDriver无法成功启动/产生新的Web客户端会话/实例。

您的主要问题是如何将对象的DesiredCapabilities类型(即desireCapabilities)分配FirefoxOptionsoptions) 正确的方法是将DesiredCapabilities类对象(即, 期望的功能)通过MutableCapabilities类中的merge()函数MutableCapabilitiesFirefoxOptions类对象,如下所示:

System.setProperty("webdriver.gecko.driver", driverGeckoPath);

LoggingPreferences loggingPrefs = new LoggingPreferences();
loggingPrefs.enable(LogType.BROWSER, Level.ALL);
loggingPrefs.enable(LogType.CLIENT, Level.ALL);
loggingPrefs.enable(LogType.DRIVER, Level.ALL);
loggingPrefs.enable(LogType.PERFORMANCE, Level.ALL);
loggingPrefs.enable(LogType.PROFILER, Level.ALL);
loggingPrefs.enable(LogType.SERVER, Level.ALL);

DesiredCapabilities desiredCapabilities = new DesiredCapabilities();
desiredCapabilities.setCapability("marionette", true);
desiredCapabilities.setCapability(CapabilityType.ACCEPT_SSL_CERTS, true);
desiredCapabilities.setCapability(CapabilityType.LOGGING_PREFS, loggingPrefs);

FirefoxOptions options = new FirefoxOptions();
options.merge(desiredCapabilities);
options.setLogLevel(FirefoxDriverLogLevel.TRACE);

driver = new FirefoxDriver(options);

更新资料

由于您仍然面临相同的错误,请考虑执行以下步骤:

  • 通过IDE 清理 项目工作区 ,并仅使用必需的依赖项重建项目。
  • 在执行测试套件之前和之后,使用CCleaner工具清除所有操作系统杂项。
  • 如果您的基本Web客户端版本太旧,请通过Revo Uninstaller卸载它,然后安装最新的GA和Web客户端发行版。
  • 进行系统重启
  • 以非root用户身份执行Test
  • 始终在tearDown(){}方法内调用driver.quit() ,以优雅地关闭和破坏WebDriverWeb Client实例。

对于那些可能会担心的人,我遇到了同样的问题,并陷入了“拒绝连接”的节日。 经过一整夜的尝试和错误,我发现之前的geckodriver,Selenium和firefox进程没有关闭,并且大约有50个打开进程。 这三个简单的命令解决了我的问题

pkill geckodriver
pkill firefox
pkill selenium

暂无
暂无

声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM