如何通过Safari浏览器和selenium-webdriver向网页内的用户名和密码字段发送文本

Question

我正在尝试登录要为其编写测试脚本的网页。但是登录脚本每次在Safari中都会失败，尽管同一脚本在Chrome上运行良好。

显示的错误消息：

Sep 10, 2018 10:55:06 AM org.openqa.selenium.support.ui.ExpectedConditions findElement
WARNING: WebDriverException thrown by findElement(By.id: mfacode)
org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 0 milliseconds
Build info: version: '3.14.0', revision: 'aacccce0', time: '2018-08-02T20:05:20.749Z'
System info: host: 'iMac.localdomain', ip: 'fe80:0:0:0:1c2b:a0b9:a043:3a94%en0', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.13.6', java.version: '1.8.0_181'
Driver info: org.openqa.selenium.safari.SafariDriver
Capabilities {applicationCacheEnabled: true, browserName: safari, cleanSession: true, cssSelectorsEnabled: true, databaseEnabled: true, handlesAlerts: true, javascriptEnabled: true, locationContextEnabled: false, nativeEvents: true, platform: MAC, platformName: MAC, rotatable: false, version: 13605.3.8, webStorageEnabled: true}
Session ID: E2219A59-8EEE-4380-93B6-77A7DDE289BE
*** Element info: {Using=id, value=mfacode}

我正在使用的脚本： 公共类LoginSafari {

public static void main(String[] args) {

    System.setProperty("webdriver.safari.driver", "/usr/bin/safaridriver");
    WebDriver driver= new SafariDriver(); 
    driver.get("https://yapiapp.io/welcome");
    driver.manage().window().maximize();
    driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);
    new WebDriverWait(driver, 30).until(ExpectedConditions.visibilityOfElementLocated(By.className("auth0-lock-input"))).sendKeys("alaka.goswami@*****.com");
    driver.findElement(By.name("password")).sendKeys("*******");
    driver.findElement(By.className("auth0-lock-submit")).click();
    // WebDriverWait wait=new WebDriverWait(driver, 40);
    driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);    
    new WebDriverWait(driver, 20).until(ExpectedConditions.visibilityOfElementLocated(By.id("******")));
    // username and password masked//

有什么办法可以解决这个问题？

Answer 1

此错误消息...

Sep 10, 2018 10:55:06 AM org.openqa.selenium.support.ui.ExpectedConditions findElement
WARNING: WebDriverException thrown by findElement(By.id: mfacode)
org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. (WARNING: The server did not provide any stacktrace information)

...表示根据您使用的Locator Strategy， WebDriver 实例找不到任何元素。

您需要注意以下几点：

• 不同的浏览器呈现的HTML DOM不同，因此您需要构造定位器策略才能使用跨浏览器。
• 由于用户名/电子邮件和您的密码字段都在同一页面上，因此您只需一次诱使 WebDriverWait 。
• 由于您需要调用sendKeys()方法，因此需要使用 visibilityOfElementLocated() 方法来代替 ExpectedConditions 作为elementToBeClickable()。

• 您的有效代码块将是：

  import org.openqa.selenium.By;
  import org.openqa.selenium.WebDriver;
  import org.openqa.selenium.firefox.FirefoxDriver;
  import org.openqa.selenium.support.ui.ExpectedConditions;
  import org.openqa.selenium.support.ui.WebDriverWait;
  
  public class yapiapp_login {
  
      public static void main(String[] args) {
          System.setProperty("webdriver.safari.driver", "/usr/bin/safaridriver");
          WebDriver driver = new SafariDriver();
          driver.manage().window().maximize();
          driver.get("https://yapiapp.io/welcome");
          new WebDriverWait(driver, 30).until(ExpectedConditions.elementToBeClickable(By.cssSelector("input.auth0-lock-input[name='username  ']"))).sendKeys("alaka.goswami@*****.com");
          driver.findElement(By.cssSelector("input.auth0-lock-input[name='password']")).sendKeys("Alakananda Goswami");
      }
  }
  

• 浏览器快照（使用GeckoDriver / Firefox）：