配置失败：@BeforeMethod 设置 org.openqa.selenium.NoSuchSessionException：会话 ID 为空。调用 quit() 后使用 WebDriver？

【问题标题】：FAILED CONFIGURATION: @BeforeMethod setup org.openqa.selenium.NoSuchSessionException: Session ID is null. Using WebDriver after calling quit()?配置失败：@BeforeMethod 设置 org.openqa.selenium.NoSuchSessionException：会话 ID 为空。调用 quit() 后使用 WebDriver？
【发布时间】：2018-02-07 03:16:26
【问题描述】：

我在这里发现了几个类似的问题（ SessionNotFoundException: Session ID is null. Using WebDriver after calling quit()? (Selenium)

org.openqa.selenium.NoSuchSessionException: Session ID is null. Using WebDriver after calling quit()? ) 但他们都没有帮助我解决我的问题。 任何帮助或建议将不胜感激。

就我而言，我使用的是 TestNG。 我已经创建了主类

package base;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Properties;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.testng.annotations.AfterSuite;
import org.testng.annotations.BeforeSuite;
import org.testng.annotations.BeforeTest;

public class MainClass {

      public WebDriver driver;
      public Properties CONFIG;
      public Properties XPATH;

    @BeforeSuite
    public void initialization() throws IOException {   
        String chromeDriverLocation = System.getProperty("user.dir")+"/src/main/java/driverlocation/chromedriver.exe";
        System.setProperty("webdriver.chrome.driver", chromeDriverLocation);

        driver = new ChromeDriver();
        System.out.println("Web Driver initilization has started...");
        System.out.println("In the before suite...");

        CONFIG = new Properties();
        String configLocation = System.getProperty("user.dir")+"/src/main/java/base/Config.properties";
        FileInputStream ip = new FileInputStream(configLocation);
        CONFIG.load(ip);

        XPATH = new Properties();
        String xpathLocation = System.getProperty("user.dir")+"/src/main/java/base/xpath.properties";
        FileInputStream xpathIp = new FileInputStream(xpathLocation);
        XPATH.load(xpathIp);
    }
     @AfterSuite
        public void tearDown() {
        System.out.println("Web Driver is closing...");
        System.out.println("it is epic...");
        driver.quit();
}
}

我有一个扩展 Main.Class 的测试类

package Test.TileSearch;

import org.testng.annotations.Test;

import base.MainClass;

import org.testng.annotations.BeforeMethod;
import org.openqa.selenium.By;
import org.testng.annotations.AfterMethod;


public class Tile1City1 extends MainClass  {


     @BeforeMethod 
       public void setup() throws Exception {
          driver.get(CONFIG.getProperty("urlcentura"));
          driver.manage().window().maximize();
      }

      @AfterMethod 
      public void tearDown() {
          driver.quit();
      }


       @Test
      public void main1() throws Exception  
            driver.findElement(By.xpath().click();
            driver.findElement(By.xpath().click();
            driver.findElement(By.xpath().click();

            if(!driver.findElements(By.partialLinkText("Tile")).isEmpty()){
                    System.out.println("Tile is available there");
                }else{
                    System.out.println("Tile is not available there");
                }
      }

      @Test
      public void main1() throws Exception  
            driver.findElement(By.xpath().click();
            driver.findElement(By.xpath().click();
            driver.findElement(By.xpath().click();

            if(!driver.findElements(By.partialLinkText("Tile")).isEmpty()){
                    System.out.println("Tile is available there");
                }else{
                    System.out.println("Tile is not available there");
                }
      }
    }

这是控制台中的错误

[RemoteTestNG] detected TestNG version 6.13.1
Starting ChromeDriver 2.33.506120 (e3e53437346286c0bc2d2dc9aa4915ba81d9023f) on port 11302
Only local connections are allowed.
Feb 06, 2018 8:13:19 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: OSS
Web Driver initilization has started...
In the before suite...
Abaco is available there
FAILED CONFIGURATION: @BeforeMethod setup
org.openqa.selenium.NoSuchSessionException: Session ID is null. Using WebDriver after calling quit()?
Build info: version: '3.8.1', revision: '6e95a6684b', time: '2017-12-01T18:33:54.468Z'
System info: host: 'EARL', ip: '192.168.1.85', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_151'
Driver info: driver.version: RemoteWebDriver
    at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:131)
    at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:83)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:601)
    at org.openqa.selenium.remote.RemoteWebDriver.get(RemoteWebDriver.java:325)
    at Test.CenturaSearch.AbacoMontreal.setup(AbacoMontreal.java:16)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:124)
    at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:59)
    at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:451)
    at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:222)
    at org.testng.internal.Invoker.invokeMethod(Invoker.java:516)
    at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:707)
    at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:979)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
    at org.testng.TestRunner.privateRun(TestRunner.java:648)
    at org.testng.TestRunner.run(TestRunner.java:505)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)
    at org.testng.SuiteRunner.run(SuiteRunner.java:364)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1187)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1116)
    at org.testng.TestNG.runSuites(TestNG.java:1028)
    at org.testng.TestNG.run(TestNG.java:996)
    at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:114)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)

SKIPPED CONFIGURATION: @AfterMethod tearDown
PASSED: main
SKIPPED: main1
org.openqa.selenium.NoSuchSessionException: Session ID is null. Using WebDriver after calling quit()?
Build info: version: '3.8.1', revision: '6e95a6684b', time: '2017-12-01T18:33:54.468Z'
System info: host: 'EARL', ip: '192.168.1.85', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_151'
Driver info: driver.version: RemoteWebDriver
    at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:131)
    at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:83)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:601)
    at org.openqa.selenium.remote.RemoteWebDriver.get(RemoteWebDriver.java:325)
    at Test.CenturaSearch.AbacoMontreal.setup(AbacoMontreal.java:16)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:124)
    at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:59)
    at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:451)
    at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:222)
    at org.testng.internal.Invoker.invokeMethod(Invoker.java:516)
    at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:707)
    at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:979)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
    at org.testng.TestRunner.privateRun(TestRunner.java:648)
    at org.testng.TestRunner.run(TestRunner.java:505)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)
    at org.testng.SuiteRunner.run(SuiteRunner.java:364)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1187)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1116)
    at org.testng.TestNG.runSuites(TestNG.java:1028)
    at org.testng.TestNG.run(TestNG.java:996)
    at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:114)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)


===============================================
    Default test
    Tests run: 2, Failures: 0, Skips: 1
    Configuration Failures: 1, Skips: 1
===============================================


===============================================
Default suite
Total tests run: 2, Failures: 0, Skips: 1
Configuration Failures: 1, Skips: 1
===============================================

只有一个测试在运行，其他的总是跳过。 基本上问题是我使用 WebDriver 的静态属性，不应该在不同的测试运行之间共享。 有谁知道如何解决这个问题？

【问题讨论】：

    标签： java variables selenium-chromedriver testng-eclipse


    【解决方案1】：

    您似乎要退出 Tile1City1 中的驱动程序

     @AfterMethod 
  public void tearDown() {
      driver.quit();
  }

    因此，您在@BeforeSuite 中打开驱动程序，然后在一次测试后退出它，并且永远不会重新打开它。我可能误读了代码，但这似乎是正在发生的事情。

    如果您希望每次测试都有一个新驱动程序，您还需要在 @BeforeMethod 中打开每个测试的驱动程序。

    如果您想为每个测试重复使用相同的驱动程序，请删除我从 Tile1City1 引用的代码

    【讨论】：

    • @Serg，你解决了吗？如果没有，我可以帮助你。
    【解决方案2】：

    内部驱动

     `public static void closeDriver() {
    if (driver != null) {    driver.quit();     driver = null;    }
    }`

    并在@AfterMethod 中使用这个 Driver.closeDriver();

    【讨论】：

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