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无法通过Heroku中的Selenium webdriver(Java)调用headless chrome驱动程序

google-chrome-headless selenium-webdriver heroku google-chrome java

Jitendra Jangid · 技术社区 · 7 年前

我在heroku环境中调用headless chrome并在WINDOWS(本地机器)中完美工作时遇到了一个问题。

错误:

 2018-02-07T05:37:22.412428+00:00 heroku[web.1]: Starting process with command `java -cp target/classes:target/dependency/* com.appirio.sd.TestScript` 2018-02-07T05:37:24.211467+00:00 app[web.1]: Setting JAVA_TOOL_OPTIONS defaults based on dyno size. Custom settings will override them.

 2018-02-07T05:37:24.219616+00:00 app[web.1]: Picked up JAVA_TOOL_OPTIONS: -Xmx300m -Xss512k -Dfile.encoding=UTF-8
 2018-02-07T05:37:24.381460+00:00 app[web.1]: Invoke Browser
 2018-02-07T05:37:24.503816+00:00 app[web.1]: Path: /app/.apt/usr/bin/google-chrome-stable
 2018-02-07T05:37:24.503854+00:00 app[web.1]: Driver Path: agent//chromedriver
 2018-02-07T05:37:24.650636+00:00 app[web.1]: Exception in thread "main" java.lang.IllegalStateException: The driver is not executable: /app/agent/chromedriver
 2018-02-07T05:37:24.650644+00:00 app[web.1]:    at com.google.common.base.Preconditions.checkState(Preconditions.java:534)
 2018-02-07T05:37:24.650650+00:00 app[web.1]:    at org.openqa.selenium.chrome.ChromeDriverService.access$000(ChromeDriverService.java:32)
 2018-02-07T05:37:24.650647+00:00 app[web.1]:    at org.openqa.selenium.remote.service.DriverService.checkExecutable(DriverService.java:140)
 2018-02-07T05:37:24.650655+00:00 app[web.1]:    at org.openqa.selenium.remote.service.DriverService$Builder.build(DriverService.java:339)
 2018-02-07T05:37:24.650649+00:00 app[web.1]:    at org.openqa.selenium.remote.service.DriverService.findExecutable(DriverService.java:131)
 2018-02-07T05:37:24.650653+00:00 app[web.1]:    at org.openqa.selenium.chrome.ChromeDriverService$Builder.findDefaultExecutable(ChromeDriverService.java:137)
 2018-02-07T05:37:24.650657+00:00 app[web.1]:    at org.openqa.selenium.chrome.ChromeDriverService.createDefaultService(ChromeDriverService.java:88)
 2018-02-07T05:37:24.650658+00:00 app[web.1]:    at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:157)
 2018-02-07T05:37:24.650660+00:00 app[web.1]:    at com.appirio.commands.Selenium.launchBrowser(Selenium.java:42)
 2018-02-07T05:37:24.650663+00:00 app[web.1]:    at com.appirio.sd.TestScript.main(TestScript.java:12)
 2018-02-07T05:37:24.733915+00:00 heroku[web.1]: State changed from starting to crashed
 2018-02-07T05:37:24.717297+00:00 heroku[web.1]: Process exited with status 1

代码剪切:

    public WebDriver launchBrowser(){
    String driverPath="";
    if(getOS().equals(OS.WINDOWS)){
        driverPath="agent//chromedriver.exe";
    }else if(getOS().equals(OS.LINUX)){
        driverPath="agent//chromedriver";
    }   

    ChromeOptions options = new ChromeOptions();
    options.addArguments("--headless");
    options.addArguments("window-size=1200x600");
    if(getOS().equals(OS.LINUX)){
        try{   //GOOGLE_CHROME_SHIM GOOGLE_CHROME_BIN
            String binaryPath=EnvironmentUtils.getProcEnvironment().get("GOOGLE_CHROME_SHIM");
            System.out.println("Path: "+binaryPath);
            options.setBinary(binaryPath);     
            options.addArguments("--disable-gpu");
            options.addArguments("--no-sandbox");       
        }catch(Exception e){

        }
    }      

    System.out.println("Driver Path: "+driverPath);

    System.setProperty("webdriver.chrome.driver", driverPath);
    WebDriver driver=new ChromeDriver(options);

    return driver;
}

Heroku是Linux环境,所以专门为Linux环境添加的条件很少。

提前感谢!!!

1 回复 | 直到 7 年前

quantumThinker Jitendra Jangid 7 年前

先前(&P);发布此问题后,投入大量时间解决此问题。我很高兴地说,我们取得了成功。

解决方案:

我已指定驱动程序路径(在脚本中)(&在heroku env中添加了驱动程序构建包。驱动程序路径造成问题。因此,只需删除heroku env&的以下类似代码;仅为windows添加

 System.setProperty("webdriver.chrome.driver", driverPath);

因此,代码如下所示

public WebDriver launchBrowser(){
String driverPath="";
if(getOS().equals(OS.WINDOWS)){
    driverPath="agent//chromedriver.exe";
    System.setProperty("webdriver.chrome.driver", driverPath);
}  

ChromeOptions options = new ChromeOptions();
options.addArguments("--headless");
options.addArguments("window-size=1200x600");
if(getOS().equals(OS.LINUX)){
    try{   //GOOGLE_CHROME_SHIM GOOGLE_CHROME_BIN
        String binaryPath=EnvironmentUtils.getProcEnvironment().get("GOOGLE_CHROME_SHIM");
        System.out.println("Path: "+binaryPath);
        options.setBinary(binaryPath);     
        options.addArguments("--disable-gpu");
        options.addArguments("--no-sandbox");       
    }catch(Exception e){

    }
}    

WebDriver driver=new ChromeDriver(options);

return driver;
}

下面总结一下在Heroku中设置“selenium webdriver java脚本调用Headless chrome”的整个方法:

将以下构建包添加到hero应用程序

heroku/爪哇

https://github.com/heroku/heroku-buildpack-google-chrome

https://github.com/heroku/heroku-buildpack-chromedriver

在heroku应用程序中部署代码

谢谢大家!

用于添加生成包的命令。

heroku buildpacks:set heroku/java
heroku buildpacks:add --index 1 https://github.com/heroku/heroku-buildpack-google-chrome
heroku buildpacks:add --index 2 https://github.com/heroku/heroku-buildpack-chromedriver