Selenium似乎正常，但却出现超时错误？

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1 回答

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提问于 2025-04-16 18:43

$ java -jar selenium-server-standalone-2.0b3.jar 

00:17:03.883 INFO - Java: Sun Microsystems Inc. 19.0-b09
00:17:03.885 INFO - OS: Linux 2.6.32-305-ec2 i386
00:17:03.889 INFO - v2.0 [b3], with Core v2.0 [b3]
00:17:04.501 INFO - RemoteWebDriver instances should connect to: http://127.0.0.1:4444/wd/hub
00:17:04.530 INFO - Version Jetty/5.1.x
00:17:04.531 INFO - Started HttpContext[/selenium-server/driver,/selenium-server/driver]
00:17:04.532 INFO - Started HttpContext[/selenium-server,/selenium-server]
00:17:04.532 INFO - Started HttpContext[/,/]
00:17:04.614 INFO - Started org.openqa.jetty.jetty.servlet.ServletHandler@13c5982
00:17:04.614 INFO - Started HttpContext[/wd,/wd]
00:17:04.618 INFO - Started SocketListener on 0.0.0.0:4444
00:17:04.618 INFO - Started org.openqa.jetty.jetty.Server@1ffb8dc

当我运行这个脚本时：

from selenium.webdriver.common.keys import Keys
import time

browser = webdriver.Remote('http://localhost:4444/wd/hub', {'browser_name':'firefox','platform':'ANY', 'version':'','javascript_enabled':True})
browser.get("http://www.yahoo.com")

一开始，Selenium 服务器似乎正常工作：

00:17:08.776 INFO - Executing: [new session: {platform=ANY, browser_name=firefox, javascript_enabled=true, version=}] at URL: /session)

但是随后我遇到了一个 Python 错误：

Traceback (most recent call last):
  File "fb2.py", line 13, in <module>
    browser = webdriver.Remote('http://localhost:4444/wd/hub', {'browser_name':'firefox','platform':'ANY', 'version':'','javascript_enabled':True})
  File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 60, in __init__
    self.start_session(desired_capabilities, browser_profile)
  File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 96, in start_session
    'desiredCapabilities': desired_capabilities,
  File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 142, in execute
    self.error_handler.check_response(response)
  File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/errorhandler.py", line 100, in check_response
    raise exception_class(message)
selenium.common.exceptions.WebDriverException: Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms

自动化测试网络请求 selenium 超时错误

1 个回答

看起来你在使用Selenium Grid。这个网格由一个中心（hub）和多个节点（nodes）组成，节点会连接到中心。当你运行一个测试时，你会向服务器发送一个请求，服务器会根据你在desired_capabilities中定义的配置，把请求分发到合适的主机上。不过在这种情况下，你似乎没有在任何地方启动一个节点。

你似乎没有成功启动一个节点。此外，我认为使用WebDriver需要Grid 2.0。根据我的理解，你现在使用的版本只支持RC API的Grid。你可以参考以下指南，如果你下载并编译当前的主干版本： http://code.google.com/p/selenium/wiki/Grid2

回答于 2025-04-16 由 Python大师

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Selenium似乎正常，但却出现超时错误？

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