如何在Xvfb中运行Selenium? [英] How do I run Selenium in Xvfb?

问题描述

我正在使用EC2实例.因此没有GUI.

I'm on EC2 instance. So there is no GUI.

$pip install selenium
$sudo apt-get install firefox xvfb

然后我这样做:

$Xvfb :1 -screen 0 1024x768x24 2>&1 >/dev/null &

$DISPLAY=:1 java -jar selenium-server-standalone-2.0b3.jar
05:08:31.227 INFO - Java: Sun Microsystems Inc. 19.0-b09
05:08:31.229 INFO - OS: Linux 2.6.32-305-ec2 i386
05:08:31.233 INFO - v2.0 [b3], with Core v2.0 [b3]
05:08:32.121 INFO - RemoteWebDriver instances should connect to: http://127.0.0.1:4444/wd/hub
05:08:32.122 INFO - Version Jetty/5.1.x
05:08:32.123 INFO - Started HttpContext[/selenium-server/driver,/selenium-server/driver]
05:08:32.124 INFO - Started HttpContext[/selenium-server,/selenium-server]
05:08:32.124 INFO - Started HttpContext[/,/]
05:08:32.291 INFO - Started org.openqa.jetty.jetty.servlet.ServletHandler@1186fab
05:08:32.292 INFO - Started HttpContext[/wd,/wd]
05:08:32.295 INFO - Started SocketListener on 0.0.0.0:4444
05:08:32.295 INFO - Started org.openqa.jetty.jetty.Server@1ffb8dc

太好了，现在一切都会正常，对吧?

Great, everything should work now, right?

运行代码时:

from selenium import webdriver
from selenium.common.exceptions import NoSuchElementException
from selenium.webdriver.common.keys import Keys

browser = webdriver.Firefox() 
browser.get("http://www.yahoo.com") 

我明白了:

Error: cannot open display: :0

推荐答案

打开终端并运行此命令xhost +.每次重新启动计算机时都需要运行此命令.如果一切正常，可以将其添加到启动命令中

open a terminal and run this command xhost +. This commands needs to be run every time you restart your machine. If everything works fine may be you can add this to startup commands

还要确保在/etc/environment文件中有一行

Also make sure in your /etc/environment file there is a line

export DISPLAY=:0.0 

然后，运行测试以查看问题是否解决.

And then, run your tests to see if your issue is resolved.

在使用此功能之前，请注意以下所有来自sardathrion的评论.

All please note the comment from sardathrion below before using this.

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