試圖運行下面的程序

Question

import java.util.Set; 

import java.util.concurrent.TimeUnit; 

import org.openqa.selenium.By; 

import org.openqa.selenium.WebDriver; 

import org.openqa.selenium.chrome.ChromeDriver; 

public class PracticeSwitchWindow { 

     public static WebDriver driver; 

     public static void main(String[] args) { 
      System.setProperty("webdriver.chrome.driver","C:\\Users\\Sneha\\Downloads\\chromedriver_win32\\chromedriver.exe"); 

      // Create a new instance of the Chrome driver 

      driver = new ChromeDriver(); 

      // Put an Implicit wait, this means that any search for elements on the page could take the time the implicit wait is set for before throwing exception 

      driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS); 

      // Launch the URL 

      driver.get("http://www.toolsqa.com/automation-practice-switch-windows/"); 

      // Store and Print the name of the First window on the console 

      String handle= driver.getWindowHandle(); 

      System.out.println(handle); 

      // Click on the Button "New Message Window" 

      driver.findElement(By.linkText("New Message Window")).click(); 

      // Store and Print the name of all the windows open    

      Set <String> handles = driver.getWindowHandles(); 

      System.out.println(handles); 

      // Pass a window handle to the other window 

      for (String handle1 : driver.getWindowHandles()) { 

       System.out.println(handle1); 

       driver.switchTo().window(handle1); 

       } 

      // Closing Pop Up window 

      driver.close(); 

      // Close Original window 

      driver.quit(); 

    } 

} 

我收到錯誤

Starting ChromeDriver 2.15.322448 (52179c1b310fec1797c81ea9a20326839860b7d3) on port 13328 
Only local connections are allowed. 
CDwindow-36C2A5E8-B9F3-4F43-9C7E-C94A9EB173A9 
Exception in thread "main" org.openqa.selenium.NoSuchElementException: no such element 
    (Session info: chrome=42.0.2311.90) 
    (Driver info: chromedriver=2.15.322448 (52179c1b310fec1797c81ea9a20326839860b7d3),platform=Windows NT 6.3 x86_64) (WARNING: The server did not provide any stacktrace information) 
Command duration or timeout: 10.12 seconds 
For documentation on this error, please visit: http://seleniumhq.org/exceptions/no_such_element.html 
Build info: version: '2.44.0', revision: '76d78cf', time: '2014-10-23 20:03:00' 
System info: host: 'snehagoutam', ip: '192.168.1.3', os.name: 'Windows 8.1', os.arch: 'x86', os.version: '6.3', java.version: '1.7.0_67' 
Session ID: 3acadcc58fe7c7524ade07cb0ccfcdf9 
Driver info: org.openqa.selenium.chrome.ChromeDriver 
Capabilities [{platform=WIN8_1, acceptSslCerts=true, javascriptEnabled=true, browserName=chrome, chrome={userDataDir=C:\Users\Sneha\AppData\Local\Temp\scoped_dir4576_1324}, rotatable=false, locationContextEnabled=true, mobileEmulationEnabled=false, version=42.0.2311.90, takesHeapSnapshot=true, cssSelectorsEnabled=true, databaseEnabled=false, handlesAlerts=true, browserConnectionEnabled=false, webStorageEnabled=true, nativeEvents=true, applicationCacheEnabled=false, takesScreenshot=true}] 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) 
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) 
    at java.lang.reflect.Constructor.newInstance(Unknown Source) 
    at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:204) 
    at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:156) 
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:599) 
    at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:352) 
    at org.openqa.selenium.remote.RemoteWebDriver.findElementByLinkText(RemoteWebDriver.java:401) 
    at org.openqa.selenium.By$ByLinkText.findElement(By.java:242) 
    at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:344) 
    at Selenium.PracticeSwitchWindow.main(PracticeSwitchWindow.java:40) 

Answer 1

試試下面的，它做工精細....

import java.util.Set; 

import java.util.concurrent.TimeUnit; 

import org.openqa.selenium.By; 

import org.openqa.selenium.WebDriver; 

import org.openqa.selenium.chrome.ChromeDriver; 


public class PracticeSwitchWindow { 

public static WebDriver driver; 

public static void main(String[] args) {   
    // System.setProperty("webdriver.chrome.driver",System.getProperty("user.dir")+"\\chromedriver\\chromedriver.exe"); 
    System.setProperty("webdriver.chrome.driver","C:\\Users\\Sneha\\Downloads\\chromedriver_win32\\chromedriver.exe"); 
    // Create a new instance of the Chrome driver 
    driver = new ChromeDriver(); 
    // Put an Implicit wait, this means that any search for elements on the page could take the time the implicit wait is set for before throwing exception 
    driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS); 
    // Launch the URL 
    driver.get("http://www.toolsqa.com/automation-practice-switch-windows/"); 
    // Store and Print the name of the First window on the console 
    String handle= driver.getWindowHandle(); 
    System.out.println(handle); 
    // Click on the Button "New Message Window" 
    driver.findElement(By.xpath("//button[@onclick='newMsgWin()']")).click(); 
    // driver.findElement(By.linkText("New Message Window")).click(); 
    // Store and Print the name of all the windows open    
    Set <String> handles = driver.getWindowHandles(); 
    System.out.println(handles); 
    // Pass a window handle to the other window 
    for (String handle1 : driver.getWindowHandles()) { 
     System.out.println(handle1); 
     driver.switchTo().window(handle1); 
     }   
    driver.close(); 
    // Close Original window 
    driver.quit(); 

}

}