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我们如何在colab.research.google.com中使用Selenium Webdriver？（google colab怎么用）

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如果您想了解我们如何在colab.research.google.com中使用SeleniumWebdriver？的相关知识，那么本文是一篇不可错过的文章，我们将对googlecolab怎么用进行全面

如果您想了解我们如何在colab.research.google.com中使用Selenium Webdriver？的相关知识，那么本文是一篇不可错过的文章，我们将对google colab怎么用进行全面详尽的解释，并且为您提供关于cucumber; Selenium WebDriver-如何使用Google Chrome浏览器代替Firefox作为测试浏览器、java – 如何用selenium webdriver发送cookies？、org.openqa.selenium.remote.service.DriverService $ Builder.createArgs（）Lcom /google / common / collect / ImmutableList; 使用Selenium 3.5.3 Chrome 76、ruby – 如何在无头Chrome上使用Selenium Webdriver？的有价值的信息。

本文目录一览：

我们如何在colab.research.google.com中使用Selenium Webdriver？（google colab怎么用）

我们如何在colab.research.google.com中使用Selenium Webdriver？（google colab怎么用）

我想在colab.research.google.com中使用Chrome的Selenium
Webdriver进行快速处理。我可以使用安装Selenium，!pip installselenium但chrome的webdriver需要通向webdriverChrome.exe的路径。我应该如何使用它？

PS-
colab.research.google.com是一个在线平台，可为与深度学习相关的快速计算问题提供GPU。请避免使用诸如webdriver.Chrome（path）之类的解决方案。

答案1

小编典典

您可以通过安装Chrome Web驱动程序并调整一些选项来做到这一点，以使其在Google colab中不会崩溃：

!pip install selenium!apt-get update # to update ubuntu to correctly run apt install!apt install chromium-chromedriver!cp /usr/lib/chromium-browser/chromedriver /usr/binimport syssys.path.insert(0,''/usr/lib/chromium-browser/chromedriver'')from selenium import webdriverchrome_options = webdriver.ChromeOptions()chrome_options.add_argument(''--headless'')chrome_options.add_argument(''--no-sandbox'')chrome_options.add_argument(''--disable-dev-shm-usage'')wd = webdriver.Chrome(''chromedriver'',chrome_options=chrome_options)wd.get("https://www.webite-url.com")

cucumber; Selenium WebDriver-如何使用Google Chrome浏览器代替Firefox作为测试浏览器

cucumber; Selenium WebDriver-如何使用Google Chrome浏览器代替Firefox作为测试浏览器

对于我的Rails 3.1应用程序上的Cucumber场景，我使用了@javascript标记，因此Selenium已激活。我收到以下错误：

Could not find Firefox binary (os=macosx). Make sure Firefox is installed or set the path manually with Selenium::WebDriver::Firefox::Binary.path= (Selenium::WebDriver::Error::WebDriverError)

如果可能的话，我想使用Google Chrome浏览器作为浏览器-而不是Firefox（我尚未安装）。这可能吗？该怎么办？

实际上，Cucumber / Selenium不应检测并使用浏览器吗？

====编辑====

添加后

Capybara.register_driver :selenium do |app|  Capybara::Selenium::Driver.new(app, :browser => :chrome)end

…到features / support / env.rb，我现在收到此错误：

Unable to find the chromedriver executable. Please download the server from http://code.google.com/p/chromium/downloads/list and place it somewhere on your PATH. More info at http://code.google.com/p/selenium/wiki/ChromeDriver. (Selenium::WebDriver::Error::WebDriverError)  ./features/step_definitions/web_steps.rb:45:in `/^(?:|I )am on (.+)$/''  features/update_memories.feature:11:in `Given I am on the home page''

我是从这里下载的，并且尝试将chromedriver可执行文件放在/
usr / bin中，但是仍然出现上述错误。

====编辑2 ====

进一步执行以下步骤并运行“ sudo chmod + x / usr / bin / chromedriver”后，在运行黄瓜之后，我现在收到一个新错误：

@javascript  Scenario: navigate to memory update page from home page              # features/update_memories.feature:11    Given I am on the home page                                        # features/step_definitions/web_steps.rb:44      unable to connect to chromedriver http://127.0.0.1:57870 (Selenium::WebDriver::Error::WebDriverError)      ./features/step_definitions/web_steps.rb:45:in `/^(?:|I )am on (.+)$/''      features/update_memories.feature:12:in `Given I am on the home page''    When I activate the edit memory switch for the memory "I played"   # features/step_definitions/memories/memory_steps.rb:5    Then I should be on the edit memory page for the memory "I played" # features/step_definitions/web_steps.rb:187      PGError: server closed the connection unexpectedly        This probably means the server terminated abnormally        before or while processing the request.      : ROLLBACK (ActiveRecord::StatementInvalid)

帮助赞赏！越来越近…

答案1

小编典典

对于水豚，将其添加到 env.rb

Capybara.register_driver :selenium do |app|  Capybara::Selenium::Driver.new(app, :browser => :chrome)end

下载Chrome驱动程序可执行文件并将其复制到您的路径中，例如
/ usr / bin / 并使其可执行

$ sudo chmod +x /usr/bin/chromedriver

java – 如何用selenium webdriver发送cookies？

java – 如何用selenium webdriver发送cookies？

每次当我运行我的测试第一步是登录,而不是我到达页面.如果运行此测试通常登录操作需要很多时间.

如何通过登录操作？

使用Chrome和Firefox驱动,使用java语言.

解决方法

使用 Java API创建Cookie,如下所示： 
Cookie ck = new Cookie("name","value");
driver.manage().addCookie(ck);

使用Python API创建Cookie如下：

driver.add_cookie({'name': 'foo','value': 'bar'})

org.openqa.selenium.remote.service.DriverService $ Builder.createArgs（）Lcom /google / common / collect / ImmutableList; 使用Selenium 3.5.3 Chrome 76

org.openqa.selenium.remote.service.DriverService $ Builder.createArgs（）Lcom /google / common / collect / ImmutableList; 使用Selenium 3.5.3 Chrome 76

我正在用IntelliJ编写Selenium
Junit测试。如果我直接从测试中触发，则测试运行正常。但是，如果我使用JunitCore触发了来自TestRunnerSuite的测试，则会遇到以下奇怪的错误，在谷歌搜索后我找不到解决方案。在DriverService
$ builder上有类似的问题，但不是我的错误类型。

[main] ERROR sire.responseOrg.TestIncidents - java.lang.AbstractMethodError: org.openqa.selenium.remote.service.DriverService$Builder.createArgs()Lcom/google/common/collect/ImmutableList;
    at org.openqa.selenium.remote.service.DriverService$Builder.build(DriverService.java:332)
    at org.openqa.selenium.chrome.ChromeDriverService.createDefaultService(ChromeDriverService.java:88)
    at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:123)
    at sire.responseOrg.WebDrivers.getInstance(WebDrivers.java:15)
    at sire.responseOrg.util.util1.setupChromeDriver(util1.java:51)
    at sire.responseOrg.Test1.setUp(Test1.java:28)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at ......Omitted
    at org.junit.runner.JUnitCore.run(JUnitCore.java:127)
    at org.junit.runner.JUnitCore.runClasses(JUnitCore.java:76)
    at sire.responseOrg.TestSuiteRunner.main(TestSuiteRunner.java:24)

我正在使用Selenium 3.5.3和 chrome76。— >已更新为Selenium 3.141.59，并具有main范围。
现在出现错误

java.lang.NoClassDefFoundError: org/apache/http/auth/Credentials
    at org.openqa.selenium.remote.HttpCommandExecutor.getDefaultClientFactory(HttpCommandExecutor.java:93)
    at org.openqa.selenium.remote.HttpCommandExecutor.<init>(HttpCommandExecutor.java:72)
    at org.openqa.selenium.remote.service.DriverCommandExecutor.<init>(DriverCommandExecutor.java:63)
    at org.openqa.selenium.chrome.ChromeDriverCommandExecutor.<init>(ChromeDriverCommandExecutor.java:36)
    at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:181)
    at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:168)
    at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:123)
    at sire.responseOrg.WebDrivers.getInstance(WebDrivers.java:15)
    at sire.responseOrg.util.SeleniumUtil.setupChromeDriver(SeleniumUtil.java:62)
    at sire.responseOrg.TestIncidents.setUp(TestIncidents.java:29)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:292)
    at org.junit.runners.Suite.runChild(Suite.java:128)
    at org.junit.runners.Suite.runChild(Suite.java:24)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:292)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:136)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:127)
    at org.junit.runner.JUnitCore.runClasses(JUnitCore.java:76)
    at sire.responseOrg.TestSuiteRunner.main(TestSuiteRunner.java:24)
Caused by: java.lang.ClassNotFoundException: org.apache.http.auth.Credentials
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 33 more

完整的pom.xml依赖项

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>myGroupId</groupId>
    <artifactId>myArtifactId</artifactId>
    <version>1.0-SNAPSHOT</version>
    <description>My description</description>

    <dependencies>
        <!-- https://mvnrepository.com/artifact/junit/junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.9</version>
            <scope>main</scope>
        </dependency>

        <dependency>
            <groupId>org.seleniumhq.selenium</groupId>
            <artifactId>selenium-api</artifactId>
            <version>3.141.59</version>
        </dependency>
        <dependency>
            <groupId>org.seleniumhq.selenium</groupId>
            <artifactId>selenium-java</artifactId>
            <version>3.141.59</version>
        </dependency>
        <dependency>
            <groupId>org.seleniumhq.selenium</groupId>
            <artifactId>selenium-chrome-driver</artifactId>
            <version>3.141.59</version>
            <scope>main</scope>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.6</version>
            <scope>main</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-simple -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>1.7.6</version>
            <scope>main</scope>
        </dependency>
        <dependency>
            <groupId>com.salesforce.seti</groupId>
            <artifactId>selenium-dependencies</artifactId>
            <version>1.0.3</version>
        </dependency>


    </dependencies>

    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.5.1</version>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-jar-plugin</artifactId>
                    <version>3.1.2</version>
                    <executions>
                        <execution>
                            <goals>
                                <goal>test-jar</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
    <packaging>pom</packaging>

</project>

我的项目文件夹结构是

.src
...main
.....java
.......projectname
.........constantsFolder
.........utilFolder
...........util1.java
...........util2.java
.........Test1.java
.........TestRunnerSuite.java
.........WebDrivers.java

如果我从Test1.java开始测试，尽管有警告，但测试仍会定期运行

[main] INFO projectname.util.util1 - Set up chrome driver.
Starting ChromeDriver 75.0.3770.90 (a6dcaf7e3ec6f70a194cc25e8149475c6590e025-refs/branch-heads/3770@{#1003}) on port 28755
Only local connections are allowed.
Please protect ports used by ChromeDriver and related test frameworks to prevent access by malicious code.
[1566609934.853][WARNING]: This version of ChromeDriver has not been tested with Chrome version 76.
Aug 23,2019 6:25:34 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: W3C
[main] INFO projectname.util.util1 - Navigating to https://mytest.com/

但是，在添加如下的testSuiteRunner之后。

@RunWith(Suite.class)
@Suite.SuiteClasses({ Test1.class })
public class TestSuiteRunner {
    public static void main(String[] args) {
        Result result = JUnitCore.runClasses(Test1.class);
        // print erros,exit etc omitted
    }
}

现在，我收到了奇怪的错误，无法启动chromedriver。我拥有的Webdriver是Singleton

public class WebDrivers {
    private static WebDriver driver = null;

    public static WebDriver getInstance(){
        if (driver == null) {
            driver = new ChromeDriver();
        }
        return driver;
    }
}

这是我第一次尝试从地面进行一切设置。我不确定是pom依赖问题，单例webdriver问题还是其他原因。谁能对此发表看法并提供一些线索？非常感激。

ruby – 如何在无头Chrome上使用Selenium Webdriver？

ruby – 如何在无头Chrome上使用Selenium Webdriver？

我正在学习使用Selenium来做基本的事情,例如截取屏幕,抓取和测试,并希望将它与无头Chrome一起使用,Chrome现在从Chrome 59开始就是稳定的.

我已经能够使用’selenium-webdriver’宝石和chromedriver截取屏幕截图,但不是无头.

这是我正在运行的ruby脚本,它在开始初始化驱动程序后挂起

require 'rubygems'
require 'selenium-webdriver'

Selenium::WebDriver.logger.level = :debug
p 'initializing driver'
driver = Selenium::WebDriver.for :chrome,switches: %w[--headless --disable-gpu --screenshot --hide-scrollbars]
p 'navigating to Google'
driver.navigate.to "http://google.com"  
driver.save_screenshot("./screen.png")
driver.quit

和日志的输出：

:> ruby rubytest.rb
"initializing driver"
2017-06-07 15:55:43 DEBUG Selenium Executing Process 

["/Users/name/Documents/scrapings/python/env/bin/chromedriver","--port=9515"]
2017-06-07 15:55:43 DEBUG Selenium polling for socket on ["127.0.0.1",9515]
Starting ChromeDriver 2.29.461585 (0be2cd95f834e9ee7c46bcc7cf405b483f5ae83b) on port 9515
Only local connections are allowed.
2017-06-07 15:55:43 INFO Selenium -> POST session
2017-06-07 15:55:43 INFO Selenium    >>> http://127.0.0.1:9515/session | {"desiredCapabilities":{"browserName":"chrome","version":"","platform":"ANY","javascriptEnabled":true,"cssSelectorsEnabled":true,"takesScreenshot":false,"nativeEvents":false,"rotatable":false,"chromeOptions":{"args":["--headless","--disable-gpu","--screenshot","--hide-scrollbars"]}}}
2017-06-07 15:55:43 DEBUG Selenium      > {"Accept"=>"application/json","Content-Type"=>"application/json; charset=utf-8","Content-Length"=>"284"}
[RUBY BACKTRACE TO DRIVER INITIALIZATION]

我尝试使用类似代码的JavaScript和Python驱动程序,没有任何作用.当我尝试使用Python时,错误消息是

WebDriverException: Message: unkNown error: Chrome Failed to start: exited abnormally
  (Driver info: chromedriver=2.29.461585 (0be2cd95f834e9ee7c46bcc7cf405b483f5ae83b),platform=Mac OS X 10.12.5 x86_64)

解决方法

我发现 this blog post可用于在ruby中设置无硒铬硒 

require "selenium-webdriver"

# configure the driver to run in headless mode
options = Selenium::WebDriver::Chrome::Options.new
options.add_argument('--headless')
driver = Selenium::WebDriver.for :chrome,options: options

driver.navigate.to "https://www.google.com"

# resize the window and take a screenshot
driver.manage.window.resize_to(800,800)
driver.save_screenshot "screenshot.png"

关于我们如何在colab.research.google.com中使用Selenium Webdriver？和google colab怎么用的问题就给大家分享到这里，感谢你花时间阅读本站内容，更多关于cucumber; Selenium WebDriver-如何使用Google Chrome浏览器代替Firefox作为测试浏览器、java – 如何用selenium webdriver发送cookies？、org.openqa.selenium.remote.service.DriverService $ Builder.createArgs（）Lcom /google / common / collect / ImmutableList; 使用Selenium 3.5.3 Chrome 76、ruby – 如何在无头Chrome上使用Selenium Webdriver？等相关知识的信息别忘了在本站进行查找喔。

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