Selenium切换窗口driver.switchTo().window(handle)

import java.util.Iterator;  
import java.util.Set;  
import org.openqa.selenium.NoSuchWindowException;  
import org.openqa.selenium.WebDriver;  
import org.openqa.selenium.chrome.ChromeDriver;  
public class forEachWindows {  
protected void switchWindowByHandle(WebDriver dr, String currentHandle, Set<String> handles) {  
        Iterator<String> it = handles.iterator();  
 while (it.hasNext()) {  
            String newHandles = it.next();  
 if(currentHandle.equals(newHandles)) {  
 continue;  
            }  
 try {  
                String newHanlde = it.next();  
                WebDriver window = dr.switchTo().window(newHanlde);// 切换到新窗口   
                System.out.println("New page Title is:" + window.getTitle());    
                System.out.println("New page URL is:" + window.getCurrentUrl());  
            } catch (Exception e) {    
                System.out.println("无法切换至新打开的窗口");    
                System.out.println(e.getMessage());    
            }  
        }             
    }  
 protected boolean switchToWindowByTitle(WebDriver driver,String windowTitle){    
 boolean flag = false;    
 try {    
            String currentHandle = driver.getWindowHandle();    
            Set<String> handles = driver.getWindowHandles();    
 for (String s : handles) {    
 if (s.equals(currentHandle))    
 continue;    
 else {    
                    driver.switchTo().window(s);    
 if (driver.getTitle().contains(windowTitle)) {    
                        flag = true;    
                        System.out.println("Switch to window: " 
                                + windowTitle + " successfully!");    
 break;    
                    } else 
 continue;    
                }    
           }    
        } catch (NoSuchWindowException e) {    
            System.out.printf("Window: " + windowTitle  + " cound not found!", e.fillInStackTrace());    
            flag = false;    
        }    
 return flag;    
    }     
 public void test(){  
        WebDriver driver = new ChromeDriver();  
        String currentHandle = driver.getWindowHandle();//获取当前窗口的句柄 
        Set<String> handles = driver.getWindowHandles();//获取所有窗口的句柄 
        String windowTitle = driver.getTitle();  
        switchWindowByHandle(driver, currentHandle, handles);//通过句柄来控制切换到新窗口 
 //有的业务逻辑需求是要通过窗口的Title来切换窗口 
 //首先获取当前driver驱动的所有窗口的handle然后进行比对筛选 
 //如果窗口的title符合预期，则切换，并返回true，反之则返回false。 
        switchToWindowByTitle(driver, windowTitle);//通过Title来切换窗口 
    }  
}