Java 如何在selenium服务器上提供自定义功能？

我知道一些selenium功能可以通过以下方法获得：

driver.getCapabilities（）.getBrowserName（）

它返回浏览器名称的值

但如果它指的是一个可用的方法，如果我没有误解的话，这似乎与自定义功能有关，我的意思是：

driver.getCapabilities（）.getCapability（“某物”）

返回：值，如果未设置，则返回null


所以，我试着编写一个简单的代码来获得我所说的值

    private RemoteWebDriver driver;
    private URL url;
    private DesiredCapabilities dc = new DesiredCapabilities();

    @Before
    public void setUp() throws MalformedURLException {
        url = new URL("http://localhost:4444/wd/hub");
        dc.setCapability(CapabilityType.BROWSER_NAME, BrowserType.CHROME);
        //this is custom capability i mean
        dc.setCapability("testName", "Login");
        driver = new RemoteWebDriver(url, dc);
    }
    
    @Test
    public void test() {
        some code.....
    }
    
    @After
    public void tearDown() {
        System.out.println("Browser Name : "+ driver.getCapabilities().getCapability("browserName"));
        System.out.println("Test Name : "+ driver.getCapabilities().getCapability("testName"));
        driver.quit();
    }


使用
json
，服务器日志显示：

Capabilities are: {
  "browserName": "chrome",
  "testName": "Login"
}


但是我得到一个
null
值

如何进行正确的设置？您如何让我们的服务器提供我的意思是
testName
的功能？并且可以通过
driver.getCapabilities（）.getCapability（“testName”）获得

当前结果
浏览器名称：chrome
测试名称：null

预期结果
浏览器名称：chrome
测试名称：登录

感谢advance
您可以使用以下任一解决方案提取WebDriver功能，例如
浏览器名称
、
浏览器版本
、
平台名称
，等等：


使用直接API：


代码块：

System.out.println("Class Name is : "+((RemoteWebDriver) driver).getCapabilities().getClass().toString());
System.out.println("Browser Name is : "+((RemoteWebDriver) driver).getCapabilities().getBrowserName().toLowerCase());
System.out.println("Browser Version is : "+((RemoteWebDriver) driver).getCapabilities().getVersion().toString());
System.out.println("Platform Name is : "+((RemoteWebDriver) driver).getCapabilities().getPlatform().toString());

Capabilities cap = ((RemoteWebDriver) driver).getCapabilities();
System.out.println("acceptInsecureCerts value is: "+cap.getCapability("acceptInsecureCerts"));
System.out.println("Browser Name is : "+cap.getBrowserName());
System.out.println("Browser version is : "+cap.getVersion());           
System.out.println("Platform is : "+cap.getPlatform().toString());
System.out.println("javascriptEnabled value is: "+cap.getCapability("javascriptEnabled"));
System.out.println("moz:accessibilityChecks value is: "+cap.getCapability("moz:accessibilityChecks"));
System.out.println("moz:buildID value is: "+cap.getCapability("moz:buildID"));
System.out.println("geckodriverVersion value is: "+cap.getCapability("geckodriverVersion"));
System.out.println("Headless Mozilla value is: "+((RemoteWebDriver) driver).getCapabilities().getCapability("moz:headless"));
System.out.println("moz:headless value is: "+cap.getCapability("moz:headless"));
System.out.println("Mozilla Profile value is : "+ ((RemoteWebDriver) driver).getCapabilities().getCapability("moz:profile"));
System.out.println("moz:processID value is : "+cap.getCapability("moz:processID"));
System.out.println("moz:profile value is : "+cap.getCapability("moz:profile"));
System.out.println("moz:shutdownTimeout value is : "+cap.getCapability("moz:shutdownTimeout"));
System.out.println("moz:useNonSpecCompliantPointerOrigin value is : "+cap.getCapability("moz:useNonSpecCompliantPointerOrigin"));
System.out.println("moz:webdriverClick value is : "+cap.getCapability("moz:webdriverClick"));
System.out.println("pageLoadStrategy value is : "+cap.getCapability("pageLoadStrategy"));
System.out.println("Platform is : "+cap.getPlatform().toString());
System.out.println("platformName value is : "+cap.getCapability("platformName"));
System.out.println("platformVersion value is : "+cap.getCapability("platformVersion"));
System.out.println("rotatable value is : "+cap.getCapability("rotatable"));
System.out.println("setWindowRect value is : "+cap.getCapability("setWindowRect"));
System.out.println("strictFileInteractability value is : "+cap.getCapability("strictFileInteractability"));
System.out.println("timeouts values are : "+cap.getCapability("timeouts"));
System.out.println("unhandledPromptBehavior value is : "+cap.getCapability("unhandledPromptBehavior"));


控制台输出：

Class Name is : class org.openqa.selenium.MutableCapabilities
Browser Name is : firefox
Browser Version is : 67.0
Platform Name is : WINDOWS

acceptInsecureCerts value is: true
Browser Name is : firefox
Browser version is : 67.0
Platform is : WINDOWS
javascriptEnabled value is: true
moz:accessibilityChecks value is: false
moz:buildID value is: 20190516215225
geckodriverVersion value is: null
Headless Mozilla value is: false
moz:headless value is: false
Mozilla Profile value is : C:\Users\Debanjan.B\AppData\Local\Temp\rust_mozprofile.7HI7QUtzF1YP
moz:processID value is : 7308
moz:profile value is : C:\Users\Debanjan.B\AppData\Local\Temp\rust_mozprofile.7HI7QUtzF1YP
moz:shutdownTimeout value is : 60000
moz:useNonSpecCompliantPointerOrigin value is : false
moz:webdriverClick value is : true
pageLoadStrategy value is : normal
Platform is : WINDOWS
platformName value is : WINDOWS
platformVersion value is : 6.2
rotatable value is : false
setWindowRect value is : true
strictFileInteractability value is : false
timeouts values are : {implicit=0, pageLoad=300000, script=30000}
unhandledPromptBehavior value is : dismiss and notify



使用
getCapability（）
：


代码块：

System.out.println("Class Name is : "+((RemoteWebDriver) driver).getCapabilities().getClass().toString());
System.out.println("Browser Name is : "+((RemoteWebDriver) driver).getCapabilities().getBrowserName().toLowerCase());
System.out.println("Browser Version is : "+((RemoteWebDriver) driver).getCapabilities().getVersion().toString());
System.out.println("Platform Name is : "+((RemoteWebDriver) driver).getCapabilities().getPlatform().toString());

Capabilities cap = ((RemoteWebDriver) driver).getCapabilities();
System.out.println("acceptInsecureCerts value is: "+cap.getCapability("acceptInsecureCerts"));
System.out.println("Browser Name is : "+cap.getBrowserName());
System.out.println("Browser version is : "+cap.getVersion());           
System.out.println("Platform is : "+cap.getPlatform().toString());
System.out.println("javascriptEnabled value is: "+cap.getCapability("javascriptEnabled"));
System.out.println("moz:accessibilityChecks value is: "+cap.getCapability("moz:accessibilityChecks"));
System.out.println("moz:buildID value is: "+cap.getCapability("moz:buildID"));
System.out.println("geckodriverVersion value is: "+cap.getCapability("geckodriverVersion"));
System.out.println("Headless Mozilla value is: "+((RemoteWebDriver) driver).getCapabilities().getCapability("moz:headless"));
System.out.println("moz:headless value is: "+cap.getCapability("moz:headless"));
System.out.println("Mozilla Profile value is : "+ ((RemoteWebDriver) driver).getCapabilities().getCapability("moz:profile"));
System.out.println("moz:processID value is : "+cap.getCapability("moz:processID"));
System.out.println("moz:profile value is : "+cap.getCapability("moz:profile"));
System.out.println("moz:shutdownTimeout value is : "+cap.getCapability("moz:shutdownTimeout"));
System.out.println("moz:useNonSpecCompliantPointerOrigin value is : "+cap.getCapability("moz:useNonSpecCompliantPointerOrigin"));
System.out.println("moz:webdriverClick value is : "+cap.getCapability("moz:webdriverClick"));
System.out.println("pageLoadStrategy value is : "+cap.getCapability("pageLoadStrategy"));
System.out.println("Platform is : "+cap.getPlatform().toString());
System.out.println("platformName value is : "+cap.getCapability("platformName"));
System.out.println("platformVersion value is : "+cap.getCapability("platformVersion"));
System.out.println("rotatable value is : "+cap.getCapability("rotatable"));
System.out.println("setWindowRect value is : "+cap.getCapability("setWindowRect"));
System.out.println("strictFileInteractability value is : "+cap.getCapability("strictFileInteractability"));
System.out.println("timeouts values are : "+cap.getCapability("timeouts"));
System.out.println("unhandledPromptBehavior value is : "+cap.getCapability("unhandledPromptBehavior"));


控制台输出：

Class Name is : class org.openqa.selenium.MutableCapabilities
Browser Name is : firefox
Browser Version is : 67.0
Platform Name is : WINDOWS

acceptInsecureCerts value is: true
Browser Name is : firefox
Browser version is : 67.0
Platform is : WINDOWS
javascriptEnabled value is: true
moz:accessibilityChecks value is: false
moz:buildID value is: 20190516215225
geckodriverVersion value is: null
Headless Mozilla value is: false
moz:headless value is: false
Mozilla Profile value is : C:\Users\Debanjan.B\AppData\Local\Temp\rust_mozprofile.7HI7QUtzF1YP
moz:processID value is : 7308
moz:profile value is : C:\Users\Debanjan.B\AppData\Local\Temp\rust_mozprofile.7HI7QUtzF1YP
moz:shutdownTimeout value is : 60000
moz:useNonSpecCompliantPointerOrigin value is : false
moz:webdriverClick value is : true
pageLoadStrategy value is : normal
Platform is : WINDOWS
platformName value is : WINDOWS
platformVersion value is : 6.2
rotatable value is : false
setWindowRect value is : true
strictFileInteractability value is : false
timeouts values are : {implicit=0, pageLoad=300000, script=30000}
unhandledPromptBehavior value is : dismiss and notify




您可以在WebDriver的部分中找到支持的功能列表
W3C建议

您可以使用以下任一解决方案提取WebDriver功能，例如
浏览器名称
、
浏览器版本
、
平台名称
，等等：


使用直接API：


代码块：

System.out.println("Class Name is : "+((RemoteWebDriver) driver).getCapabilities().getClass().toString());
System.out.println("Browser Name is : "+((RemoteWebDriver) driver).getCapabilities().getBrowserName().toLowerCase());
System.out.println("Browser Version is : "+((RemoteWebDriver) driver).getCapabilities().getVersion().toString());
System.out.println("Platform Name is : "+((RemoteWebDriver) driver).getCapabilities().getPlatform().toString());

Capabilities cap = ((RemoteWebDriver) driver).getCapabilities();
System.out.println("acceptInsecureCerts value is: "+cap.getCapability("acceptInsecureCerts"));
System.out.println("Browser Name is : "+cap.getBrowserName());
System.out.println("Browser version is : "+cap.getVersion());           
System.out.println("Platform is : "+cap.getPlatform().toString());
System.out.println("javascriptEnabled value is: "+cap.getCapability("javascriptEnabled"));
System.out.println("moz:accessibilityChecks value is: "+cap.getCapability("moz:accessibilityChecks"));
System.out.println("moz:buildID value is: "+cap.getCapability("moz:buildID"));
System.out.println("geckodriverVersion value is: "+cap.getCapability("geckodriverVersion"));
System.out.println("Headless Mozilla value is: "+((RemoteWebDriver) driver).getCapabilities().getCapability("moz:headless"));
System.out.println("moz:headless value is: "+cap.getCapability("moz:headless"));
System.out.println("Mozilla Profile value is : "+ ((RemoteWebDriver) driver).getCapabilities().getCapability("moz:profile"));
System.out.println("moz:processID value is : "+cap.getCapability("moz:processID"));
System.out.println("moz:profile value is : "+cap.getCapability("moz:profile"));
System.out.println("moz:shutdownTimeout value is : "+cap.getCapability("moz:shutdownTimeout"));
System.out.println("moz:useNonSpecCompliantPointerOrigin value is : "+cap.getCapability("moz:useNonSpecCompliantPointerOrigin"));
System.out.println("moz:webdriverClick value is : "+cap.getCapability("moz:webdriverClick"));
System.out.println("pageLoadStrategy value is : "+cap.getCapability("pageLoadStrategy"));
System.out.println("Platform is : "+cap.getPlatform().toString());
System.out.println("platformName value is : "+cap.getCapability("platformName"));
System.out.println("platformVersion value is : "+cap.getCapability("platformVersion"));
System.out.println("rotatable value is : "+cap.getCapability("rotatable"));
System.out.println("setWindowRect value is : "+cap.getCapability("setWindowRect"));
System.out.println("strictFileInteractability value is : "+cap.getCapability("strictFileInteractability"));
System.out.println("timeouts values are : "+cap.getCapability("timeouts"));
System.out.println("unhandledPromptBehavior value is : "+cap.getCapability("unhandledPromptBehavior"));


控制台输出：

Class Name is : class org.openqa.selenium.MutableCapabilities
Browser Name is : firefox
Browser Version is : 67.0
Platform Name is : WINDOWS

acceptInsecureCerts value is: true
Browser Name is : firefox
Browser version is : 67.0
Platform is : WINDOWS
javascriptEnabled value is: true
moz:accessibilityChecks value is: false
moz:buildID value is: 20190516215225
geckodriverVersion value is: null
Headless Mozilla value is: false
moz:headless value is: false
Mozilla Profile value is : C:\Users\Debanjan.B\AppData\Local\Temp\rust_mozprofile.7HI7QUtzF1YP
moz:processID value is : 7308
moz:profile value is : C:\Users\Debanjan.B\AppData\Local\Temp\rust_mozprofile.7HI7QUtzF1YP
moz:shutdownTimeout value is : 60000
moz:useNonSpecCompliantPointerOrigin value is : false
moz:webdriverClick value is : true
pageLoadStrategy value is : normal
Platform is : WINDOWS
platformName value is : WINDOWS
platformVersion value is : 6.2
rotatable value is : false
setWindowRect value is : true
strictFileInteractability value is : false
timeouts values are : {implicit=0, pageLoad=300000, script=30000}
unhandledPromptBehavior value is : dismiss and notify



使用
getCapability（）
：


代码块：

System.out.println("Class Name is : "+((RemoteWebDriver) driver).getCapabilities().getClass().toString());
System.out.println("Browser Name is : "+((RemoteWebDriver) driver).getCapabilities().getBrowserName().toLowerCase());
System.out.println("Browser Version is : "+((RemoteWebDriver) driver).getCapabilities().getVersion().toString());
System.out.println("Platform Name is : "+((RemoteWebDriver) driver).getCapabilities().getPlatform().toString());

Capabilities cap = ((RemoteWebDriver) driver).getCapabilities();
System.out.println("acceptInsecureCerts value is: "+cap.getCapability("acceptInsecureCerts"));
System.out.println("Browser Name is : "+cap.getBrowserName());
System.out.println("Browser version is : "+cap.getVersion());           
System.out.println("Platform is : "+cap.getPlatform().toString());
System.out.println("javascriptEnabled value is: "+cap.getCapability("javascriptEnabled"));
System.out.println("moz:accessibilityChecks value is: "+cap.getCapability("moz:accessibilityChecks"));
System.out.println("moz:buildID value is: "+cap.getCapability("moz:buildID"));
System.out.println("geckodriverVersion value is: "+cap.getCapability("geckodriverVersion"));
System.out.println("Headless Mozilla value is: "+((RemoteWebDriver) driver).getCapabilities().getCapability("moz:headless"));
System.out.println("moz:headless value is: "+cap.getCapability("moz:headless"));
System.out.println("Mozilla Profile value is : "+ ((RemoteWebDriver) driver).getCapabilities().getCapability("moz:profile"));
System.out.println("moz:processID value is : "+cap.getCapability("moz:processID"));
System.out.println("moz:profile value is : "+cap.getCapability("moz:profile"));
System.out.println("moz:shutdownTimeout value is : "+cap.getCapability("moz:shutdownTimeout"));
System.out.println("moz:useNonSpecCompliantPointerOrigin value is : "+cap.getCapability("moz:useNonSpecCompliantPointerOrigin"));
System.out.println("moz:webdriverClick value is : "+cap.getCapability("moz:webdriverClick"));
System.out.println("pageLoadStrategy value is : "+cap.getCapability("pageLoadStrategy"));
System.out.println("Platform is : "+cap.getPlatform().toString());
System.out.println("platformName value is : "+cap.getCapability("platformName"));
System.out.println("platformVersion value is : "+cap.getCapability("platformVersion"));
System.out.println("rotatable value is : "+cap.getCapability("rotatable"));
System.out.println("setWindowRect value is : "+cap.getCapability("setWindowRect"));
System.out.println("strictFileInteractability value is : "+cap.getCapability("strictFileInteractability"));
System.out.println("timeouts values are : "+cap.getCapability("timeouts"));
System.out.println("unhandledPromptBehavior value is : "+cap.getCapability("unhandledPromptBehavior"));


控制台输出：

Class Name is : class org.openqa.selenium.MutableCapabilities
Browser Name is : firefox
Browser Version is : 67.0
Platform Name is : WINDOWS

acceptInsecureCerts value is: true
Browser Name is : firefox
Browser version is : 67.0
Platform is : WINDOWS
javascriptEnabled value is: true
moz:accessibilityChecks value is: false
moz:buildID value is: 20190516215225
geckodriverVersion value is: null
Headless Mozilla value is: false
moz:headless value is: false
Mozilla Profile value is : C:\Users\Debanjan.B\AppData\Local\Temp\rust_mozprofile.7HI7QUtzF1YP
moz:processID value is : 7308
moz:profile value is : C:\Users\Debanjan.B\AppData\Local\Temp\rust_mozprofile.7HI7QUtzF1YP
moz:shutdownTimeout value is : 60000
moz:useNonSpecCompliantPointerOrigin value is : false
moz:webdriverClick value is : true
pageLoadStrategy value is : normal
Platform is : WINDOWS
platformName value is : WINDOWS
platformVersion value is : 6.2
rotatable value is : false
setWindowRect value is : true
strictFileInteractability value is : false
timeouts values are : {implicit=0, pageLoad=300000, script=30000}
unhandledPromptBehavior value is : dismiss and notify




您可以在WebDriver的部分中找到支持的功能列表
W3C建议

听起来您需要的是如何向网格配置中添加自定义功能。这是可能的，但需要几个步骤

首先，您需要构建一个功能匹配器。matcher将是自己的项目，将Selenium服务器和Selenium Java库作为依赖项导入。您需要一个扩展
org.openqa.grid.internal.utils.DefaultCapabilityMatcher
的类，并使用自己的逻辑覆盖
matches（）
方法，以确定节点是否具有所需的功能。完成后，您将构建此项目并生成一个jar文件

其次，您需要将新的matcher连接到网格中心。我将matcher jar存储在与selenium服务器独立jar相同的目录中，并修改我的正常启动命令以适应matcher

java -cp <custom-matcher>-1.0.0.jar;selenium-server-standalone-3.141.59.jar org.openqa.grid.selenium.GridLauncher -role hub -hubConfig hubConfig.json

第三，您需要配置节点以接受新功能。如果您使用JSON来配置您的节点，那么只需为您的功能添加一行代码即可：

"capabilityName": "foo"

差不多就是这样。还值得注意的是，
DesiredCapabilities
确实有一个名为
applicationName
的功能，该功能保留为用户可定义的值。根据您的特定用例，您可能能够利用此功能来代替添加新功能

我在Github上发现了一个很好的例子，当时我自己也在学习这个过程。这是一个基本的设置，但它很好地说明了上述步骤。它应该为您自己的实现提供一个很好的起点。
听起来您想要的是如何向网格配置中添加自定义功能。这是可能的，但需要几个步骤

首先，您需要构建一个功能匹配器。matcher将是自己的项目，将Selenium服务器和Selenium Java库作为依赖项导入。您需要一个扩展
org.openqa.grid.internal.utils.DefaultCapabilityMatcher
的类，并使用自己的逻辑覆盖
matches（）
方法，以确定节点是否具有所需的功能。完成后，您将构建此项目并生成一个jar文件

其次，您需要将新的matcher连接到网格中心。我将matcher jar存储在与selenium服务器独立jar相同的目录中，并修改我的正常启动命令以适应matcher

java -cp <custom-matcher>-1.0.0.jar;selenium-server-standalone-3.141.59.jar org.openqa.grid.selenium.GridLauncher -role hub -hubConfig hubConfig.json

第三，您需要配置节点以接受新功能。如果您使用JSON来配置您的节点，那么只需为您的功能添加一行代码即可：

"capabilityName": "foo"

差不多就是这样。还值得注意的是，
DesiredCapabilities
确实有一个名为
applicationName
的功能，该功能保留为用户可定义的值。根据您的特定用例，您可能能够利用此功能来代替添加新功能

我在Github上发现了一个很好的例子，当时我自己也在学习这个过程。这是一个基本的设置，但它很好地说明了上述步骤。它应该为您自己的实现提供一个很好的起点。
这可能有助于理解这些功能。如果远程端不受支持，它将不会返回值。@RahulL yes correct，如果我使用
.getCapability（“browserName”）
platformName
等，它将返回一个值，但它仍然是selenium中可用的默认值。我使用了付费测试平台（基于selenium和appium的平台），对于报告名称，我只能通过添加
dc.setCapability（“testName”、“Login”）
方法来设置，并且我可以使用
方法获取
testName
的值