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首页 > 解决方案 > 在 Selenium 中运行无头 Chrome 会引发“未知错误：DevToolsActivePort 文件不存在”

java - 在 Selenium 中运行无头 Chrome 会引发“未知错误：DevToolsActivePort 文件不存在”

问题描述

当尝试在 Selenium 中运行 Headless Chrome 时，我遵循了这个示例，并编写了以下代码：

  ChromeOptions chromeOptions = new ChromeOptions();
  chromeOptions.addArguments("--headless");
  driver = new ChromeDriver(chromeOptions);

但是在运行代码时出现此错误：

驱动程序可执行文件的路径必须由 webdriver.chrome.driver 系统属性设置

所以我在代码中添加了这个：

chromeOptions.setBinary(System.getProperty("webdriver.chrome.driver"));

我将参数发送给程序： webdriver.chrome.driver=C:\\chromedriver_win32\\chromedriver.exe

但后来我得到了这个：

Starting ChromeDriver 2.41.578737 (49da6702b16031c40d63e5618de03a32ff6c197e) on port 47772
Only local connections are allowed.
Starting ChromeDriver 2.41.578737 (49da6702b16031c40d63e5618de03a32ff6c197e) on port 9515
Only local connections are allowed.
Invalid --log-level value.
Unable to initialize logging. Exiting...

所以我添加了日志记录设置：

 System.setProperty("webdriver.chrome.logfile", "C:\\chromedriver_win32\\chromedriver.log");
 System.setProperty("webdriver.chrome.verboseLogging", "true");
 chromeOptions.setCapability("--log-level", "WARNING");

但这似乎没有帮助，因为错误是：

Starting ChromeDriver 2.41.578737 (49da6702b16031c40d63e5618de03a32ff6c197e) on port 43365
Only local connections are allowed.
Starting ChromeDriver 2.41.578737 (49da6702b16031c40d63e5618de03a32ff6c197e) on port 9515
Only local connections are allowed.
Invalid --log-level value.
Unable to initialize logging. Exiting...
Caused by: org.openqa.selenium.WebDriverException: unknown error: Chrome failed to start: was killed
(unknown error: DevToolsActivePort file doesn't exist)
(The process started from chrome location C:\\chromedriver_win32\\chromedriver.exe is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
(Driver info: chromedriver=2.41.578737 (49da6702b16031c40d63e5618de03a32ff6c197e),platform=Windows NT 10.0.16299 x86_64) (WARNING: The server did not provide any stacktrace information)

所以看起来当前的问题是unknown error: DevToolsActivePort file doesn't exist

标签： javagoogle-chromeseleniumselenium-webdrivergoogle-chrome-headless

解决方案

要设置 webdriver 的位置，您可以使用它

System.setProperty("webdriver.chrome.driver","location-driver"); //before 'new ChromeDriver...'

无头运行是您尝试过的

ChromeOptions chromeOptions = new ChromeOptions();
chromeOptions.addArguments("--headless");
driver = new ChromeDriver(chromeOptions);

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