“线程中的异常”；“主要”；java.lang.IllegalStateException

我正在学习selenium的自动化测试教程，当时我正在用java语言编写我的第一个脚本，并在Eclipse的“控制台”中得到了这条信息

Exception in thread "main" java.lang.IllegalStateException: The path to the driver executable must be set by the webdriver.gecko.driver system property; for more information, see https://github.com/mozilla/geckodriver. The latest version can be downloaded from https://github.com/mozilla/geckodriver/releases
at com.google.common.base.Preconditions.checkState(Preconditions.java:199)
at org.openqa.selenium.remote.service.DriverService.findExecutable(DriverService.java:109)
at org.openqa.selenium.firefox.GeckoDriverService.access$100(GeckoDriverService.java:38)
at org.openqa.selenium.firefox.GeckoDriverService$Builder.findDefaultExecutable(GeckoDriverService.java:91)
at org.openqa.selenium.remote.service.DriverService$Builder.build(DriverService.java:296)
at org.openqa.selenium.firefox.FirefoxDriver.createCommandExecutor(FirefoxDriver.java:245)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:220)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:215)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:211)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:124)
at automationFramework.FirstTestCase.main(FirstTestCase.java:12)

教程链接：

---

这是因为Selenium 3使用单独的驱动程序与Firefox浏览器交互

退房

使用

System.setProperty

添加

geckodriver.exe的路径。假设路径
C:\Selenium\Firefox driver\geckodriver.exe
：

System.setProperty("webdriver.gecko.driver","C:\Selenium\Firefox driver\geckodriver.exe");
WebDriver driver = new FirefoxDriver();

System.setProperty("webdriver.gecko.driver","C:\Selenium\Firefox driver\geckodriver.exe");
WebDriver driver = new FirefoxDriver();