Java Selenium Webdriver 连接被拒绝

Question

我在我的 selenium webdriver 上遇到了非常常见的连接拒绝错误。几周前正在执行相同的代码。

我一直在阅读现有的帖子，并尝试更新 geckodriver 和 FireFox，但没有成功。我可以在另一台运行相同版本的驱动程序、浏览器和库等的计算机上运行相同的代码。如何找到该机器特有的原因？错误如下。

调试 1 调试 2 调试 3

Exception in thread "main" org.openqa.selenium.WebDriverException: org.apache.http.conn.HttpHostConnectException: Connect to localhost:28379 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused: connect Build info: version: 'unknown', revision: 'unknown', time: 'unknown' System info: host: 'LT9LTDRC2', ip: '10.130.3.15', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_131' Driver info: driver.version: Gecko_Driver  
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:91)  
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:637)     
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:250)    
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:236)    
at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:137)  
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:191)     at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:108)     at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:137)     at seleniumPrograms.Gecko_Driver.main(Gecko_Driver.java:13) 
Caused by: org.apache.http.conn.HttpHostConnectException: Connect to localhost:28379 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused: connect   
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:159)  
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:359)    
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:381)    
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:237)   at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185)   at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)  
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:111)   at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)    
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:72)     
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)     
at org.openqa.selenium.remote.internal.ApacheHttpClient.fallBackExecute(ApacheHttpClient.java:139)  
at org.openqa.selenium.remote.internal.ApacheHttpClient.execute(ApacheHttpClient.java:87)   
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:343)   
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:159)   
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:142)     
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:82)  ... 8 more 
Caused by: java.net.ConnectException: Connection refused: connect   
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)  
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source) 
    at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)   
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)    
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)     
at java.net.PlainSocketImpl.connect(Unknown Source)     
at java.net.SocksSocketImpl.connect(Unknown Source)     
at java.net.Socket.connect(Unknown Source)  
at org.apache.http.conn.socket.PlainConnectionSocketFactory.connectSocket(PlainConnectionSocketFactory.java:75)     
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142)  ... 23 more

我什至可以运行以下基本代码。

enter code here
package seleniumPrograms;
    import org.openqa.selenium.WebDriver;
    import org.openqa.selenium.firefox.FirefoxDriver;
    import org.openqa.selenium.remote.DesiredCapabilities;

    public class Gecko_Driver {
        public static void main(String[] args)  {
             System.out.println("Debug 1");
             DesiredCapabilities capabilities=DesiredCapabilities.firefox();
             System.out.println("Debug 2");
             capabilities.setCapability("marionette", true);
             System.out.println("Debug 3");
             WebDriver driver = new FirefoxDriver(capabilities);
             System.out.println("Debug 4");
             driver.get("http://www.google.com");

             driver.manage().window().maximize();  
             driver.quit();
        }
 }

以镀铬为例。

@Test
        public void testGoogleSearch() throws InterruptedException {
          // Optional, if not specified, WebDriver will search your path for chromedriver.
          System.setProperty("webdriver.chrome.driver", "C:\\chromedriver_win32\\chromedriver.exe");

          WebDriver driver = new ChromeDriver();
          driver.get("http://www.google.com/xhtml");
          Thread.sleep(5000);  // Let the user actually see something!
          WebElement searchBox = driver.findElement(By.name("q"));
          searchBox.sendKeys("ChromeDriver");
          searchBox.submit();
          Thread.sleep(5000);  // Let the user actually see something!
          driver.quit();
        }

故障追踪：

org.openqa.selenium.WebDriverException：等待驱动程序服务器启动超时。构建信息：版本：“未知”，修订：“未知”，时间：“未知”系统信息：主机：“LT9LTDRC2”，ip：“192.168.1.6”，os.name：“Windows 10”，os.arch： 'amd64'，os.version：'10.0'，java.version：'1.8.0_131' 驱动程序信息：driver.version：Gecko_Driver at org.openqa.selenium.remote.service.DriverService.waitUntilAvailable(DriverService.java:193)在 org.openqa.selenium.remote.service.DriverService.start(DriverService.java:181) 在 org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:78) 在 org.openqa.selenium.remote .RemoteWebDriver.execute(RemoteWebDriver.java:637) 在 org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:250) 在 org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:236) org.openqa.selenium.remote.RemoteWebDriver。（RemoteWebDriver.java：137）在org.openqa.selenium.chrome.ChromeDriver。（ChromeDriver.java：184）在org.openqa.selenium.chrome.ChromeDriver。（ChromeDriver.java ：171）在org.openqa.selenium.chrome.ChromeDriver。（ChromeDriver.java：124）在seleniumPrograms.Gecko_Driver.testGoogleSearch（Gecko_Driver.java：16）在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）在sun.reflect .NativeMethodAccessorImpl.invoke（未知来源）在 sun.reflect.DelegatingMethodAccessorImpl.invoke（未知来源）在 java.lang.reflect.Method.invoke（未知来源）在 org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod. java:50) 在 org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) 在 org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) 在 org.junit.internal .runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) 位于 org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) 位于 org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) 处org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) 在 org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) 在 org.junit.runners.ParentRunner$1.schedule(ParentRunner.java: 71) 在 org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) 在 org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) 在 org.junit.runners.ParentRunner$2.evaluate(ParentRunner) .java:268) 在 org.junit.runners.ParentRunner.run(ParentRunner.java:363) 在 org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) 在 org.eclipse. jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) 在 org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) 在 org.eclipse.jdt.internal。http://localhost:31675/status]将在 20002 毫秒后在 org.openqa.selenium.net.UrlChecker.waitUntilAvailable(UrlChecker.java:107) 处可用，在 org.openqa.selenium.remote.service.DriverService.waitUntilAvailable( DriverService.java:190) ... 33 更多 引起者： com.google.common.util.concurrent.UncheckedTimeoutException: java.util.concurrent.TimeoutException at com.google.common.util.concurrent.SimpleTimeLimiter.callWithTimeout(SimpleTimeLimiter. java:140) at org.openqa.selenium.net.UrlChecker.waitUntilAvailable(UrlChecker.java:80) ... 34 更多 引起者： java.util.concurrent.TimeoutException at java.util.concurrent.FutureTask.get(Unknown来源）位于 com.google.common.util.concurrent.SimpleTimeLimiter.callWithTimeout(SimpleTimeLimiter.java:128) ... 35 更多

Answer 1

我们的安全部门引入了一项策略，阻止访问 geckodriver.exe 的执行。这是通过尝试从 cmd 运行来识别的。不知道为什么我没有在 Gecko 的 IDE 中收到有意义的错误（被组策略阻止），但在 chrome 和 IE 上我确实收到了这个错误。为了使用该驱动程序，需要将其保存在程序文件中，尽管这可能特定于我的情况。如果您在 Geckodriver 中遇到此错误，我建议您尝试从 cmd 执行它，看看是否存在策略问题。