Question

我得到一个＆＃34; java.net.ConnectException：无法连接到localhost＆＃34; 每当我尝试初始化FirefoxDriver时出错。任何帮助？

下面的代码和堆栈跟踪：

Java代码

firefoxBinary = new FirefoxBinary();
firefoxBinary.addCommandLineOptions("--headless");

System.setProperty("webdriver.gecko.driver", (String) pluginConfig.get("geckodriver"));
firefoxOptions = new FirefoxOptions();

firefoxOptions.setBinary(firefoxBinary);
driver = new FirefoxDriver(firefoxOptions);

此行抛出错误

driver = new FirefoxDriver(firefoxOptions);

堆栈追踪：

java.net.ConnectException: Failed to connect to localhost/127.0.0.1:5054 Build info: version: '3.12.0', revision: '7c6e0b3', time: '2018-05-08T14:04:26.12Z' System info: host: 'xxxxx-Lenovo-YOGA-3-Pro-1370', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '4.4.0-127-generic', java.version: '1.8.0_171' Driver info: driver.version: FirefoxDriver
org.openqa.selenium.WebDriverException
Build info: version: '3.12.0', revision: '7c6e0b3', time: '2018-05-08T14:04:26.12Z'
System info: host: 'xxxxxx-Lenovo-YOGA-3-Pro-1370', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '4.4.0-127-generic', java.version: '1.8.0_171'
Driver info: driver.version: FirefoxDriver
    at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:92)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:543)
    at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:207)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:130)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:125)
    at

Answer 1

不确定 pluginConfig 文件的内容。一般来说，通过 Selenium 3.12.0 ， GeckoDriver v 0.20.1 以编程方式以无头模式调用 Firefox浏览器， Firefox Quantum v60.0.2 和 Java 您需要通过 FirefoxOptions <的实例传递argument - 无头 / strong>您可以使用以下解决方案：

代码块：

import org.openqa.selenium.WebDriver; import org.openqa.selenium.firefox.FirefoxDriver; import org.openqa.selenium.firefox.FirefoxOptions; public class A_Firefox_Headless { public static void main(String[] args) { System.setProperty("webdriver.gecko.driver", "/path/to/geckodriver"); FirefoxOptions options = new FirefoxOptions(); options.addArguments("--headless"); WebDriver driver = new FirefoxDriver(options); System.out.println("Mozilla Firefox Headless Browser Initialized"); driver.get("http://www.google.com"); System.out.println("Page Title is : "+driver.getTitle()); driver.quit(); } }

控制台输出：

1528817592552 geckodriver INFO geckodriver 0.20.1 1528817592563 geckodriver INFO Listening on 127.0.0.1:23550 1528817593461 mozrunner::runner INFO Running command: "C:\\Program Files\\Mozilla Firefox\\firefox.exe" "-marionette" "--headless" "-profile" "C:\\Users\\ATECHM~1\\AppData\\Local\\Temp\\rust_mozprofile.M2jv24VJ0QMg" *** You are running in headless mode. 1528817597139 Marionette INFO Listening on port 8949 1528817597577 Marionette WARN TLS certificate errors will be ignored for this session Jun 12, 2018 9:03:17 PM org.openqa.selenium.remote.ProtocolHandshake createSession INFO: Detected dialect: W3C Mozilla Firefox Headless Browser Initialized Page Title is : Google

Answer 2

解决了它。问题在于，我使用的是geckodriver的损坏副本，它在堆栈跟踪上面给出了以下错误。

--- exec-maven-plugin:1.2.1:exec (default-cli) @ fetcher-firefox ---
path/to/geckodriver: 2: path/to/geckodriver: Syntax error: newline unexpected
Exception in thread "main" org.openqa.selenium.WebDriverException: java.net.ConnectException: Failed to connect to localhost/127.0.0.1:15615

构建信息：版本：'3.12.0'，修订版：'7c6e0b3'，时间：'2018-05-08T14：04：26.12Z' 系统信息：主机：'xxxxx-Lenovo-YOGA-3-Pro-1370'，ip：'127.0.1.1'，os.name：'Linux'，os.arch：'amd64'，os.version：'4.4。 0-127-generic'，java.version：'1.8.0_171'

问题详情可在此处找到： https://github.com/SeleniumHQ/selenium/issues/6013#issuecomment-396665924

java.net.ConnectException：在无头模式下调用Firefox浏览器时无法连接到localhost / 127.0.0.1：xxxx

2 个答案: