WebDriverException

"WebDriverException: Cannot find firefox binary in PATH."的解决方法
   

  最近在学习webdriver,顺便把遇到的问题记在这里,以便日后查阅,并分享给遇到相同问题的人。

  问题:运行seleniumhq.org网站上的例子。

  import org.openqa.selenium.By; import org.openqa.selenium.WebDriver; import org.openqa.selenium.WebElement; import org.openqa.selenium.firefox.FirefoxDriver; import org.openqa.selenium.support.ui.ExpectedCondition; import org.openqa.selenium.support.ui.WebDriverWait; public class Selenium2Example  {    public static void main(String[] args) {        // Create a new instance of the Firefox driver        // Notice that the remainder of the code relies on the interface,        // not the implementation.        WebDriver driver = new FirefoxDriver();        // And now use this to visit Google        driver.get("");        // Alternatively the same thing can be done like this        // driver.navigate().to("");        // Find the text input element by its name        WebElement element = driver.findElement(By.name("q"));        // Enter something to search for        element.sendKeys("Cheese!");        // Now submit the form. WebDriver will find the form for us from the element        element.submit();        // Check the title of the page        System.out.println("Page title is: " + driver.getTitle());                // Google's search is rendered dynamically with JavaScript.        // Wait for the page to load, timeout after 10 seconds        (new WebDriverWait(driver, 10)).until(new ExpectedCondition<Boolean>() {            public Boolean apply(WebDriver d) {                return d.getTitle().toLowerCase().startsWith("cheese!");            }        });        // Should see: "cheese! - Google Search"        System.out.println("Page title is: " + driver.getTitle());                //Close the browser        driver.quit();    } }

  报如下错误

  Exception in thread "main" org.openqa.selenium.WebDriverException: Cannot find firefox binary in PATH. Make sure firefox is installed. OS appears to be: XP
Build info: version: '2.18.0', revision: '15704', time: '2012-01-27 17:37:17'
System info: os.name: 'Windows XP', os.arch: 'x86', os.version: '5.1', java.version: '1.6.0_23'

  看这个报错应该是firefox安装路径不是默认路径。

  解决方法:方法1、最简单的重新安装firefox到默认路径。哈哈

  方法2、直接用System.setPropert方法设置webdriver.firefox.bin的值,如

  System.setProperty("webdriver.firefox.bin","D:\\Program Files\\Mozilla Firefox\\firefox.exe");

  方法3、 用FirefoxBinary类和public FirefoxDriver(FirefoxBinary binary, FirefoxProfile profile)这个构造方法,直接上代码

  File pathToFirefoxBinary = new File("D:\\Program Files\\Mozilla Firefox\\firefox.exe"); FirefoxBinary firefoxbin = new FirefoxBinary(pathToFirefoxBinary); WebDriver driver = new FirefoxDriver(firefoxbin,null);//这里使用这个构造方法。

  应该还可以在环境变量里面设置firefox的路径也可以,有兴趣的可以试一下。

  注:有人可能会不知道webdriver.firefox.bin,可以看一下源码,其中

  org.openqa.selenium.firefox.internal.Executable.locateFirefoxBinaryFromSystemProperty()

  方法第一句

  String binaryName = System.getProperty("webdriver.firefox.bin");

  说明默认的时候取的就是这个值,重新设置一下。


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