如果遇到点击按钮或链接后出现新窗口的情况，就需要使用窗口切换的方法。
切换窗口方法
本例中就是先打开百度搜索界面，然后利用js打开一个百度新闻界面，然后通过selenium提供的窗口切换方法切换窗口
1 package com.test.windows;
2
3 import java.util.Iterator;
4 import java.util.Set;
5
6 import org.openqa.selenium.By;
7 import org.openqa.selenium.JavascriptExecutor;
8 import org.openqa.selenium.WebDriver;
9 import org.openqa.selenium.firefox.FirefoxDriver;
10
11 public class WindowsSwitch {
12
13 public static void main(String[] args) {
14
15 WebDriver driver = new FirefoxDriver();
16 driver.get("http://www.baidu.com");
17 driver.manage().window().maximize();
18
19 String searchHandle = driver.getWindowHandle();
20 System.out.println("baidu search handle : " + searchHandle);
21
22 // 获取百度新闻的连接，然后利用js打开一个新的窗口
23 waitTime(3000);
24 String href = driver.findElement(By.cssSelector("[name=tj_trnews]")).getAttribute("href");
25 System.out.println("the link of news is : " + href);
26 JavascriptExecutor executor = (JavascriptExecutor) driver;
27 executor.executeScript("window.open('" + href + "')");
28
29 waitTime(3000);
30 Set<String> handles = driver.getWindowHandles();
31 Iterator iterator = handles.iterator();
32 Iterator iterator2 = handles.iterator();
33
34 // 进入百度新闻窗口,并获取title验证
35 waitTime(3000);
36 while (iterator.hasNext()) {
37 String h = (String) iterator.next();
38 if (h != searchHandle) {
39 driver.switchTo().window(h);
40 if (driver.getTitle().contains("百度新闻")) {
41 System.out.println("switch to news page successfully");
42 break;
43 } else {
44 continue;
45 }
46 }
47
48 }
49
50 // 返回百度首页
51 waitTime(3000);
52 /*
53 * 可以直接使用searchHandle来切换，也可以利用遍历来切换
54 * driver.switchTo().window(searchHandle);
55 * if(driver.getTitle().contains("百度一下")){
56 * System.out.println("switch to search page successfully");
57 * driver.findElement(By.cssSelector("#kw")).sendKeys(
58 * "switch successfully"); }
59 */
60 while (iterator2.hasNext()) {
61 String h = (String) iterator2.next();
62 if (searchHandle.equals(h)) {
63 driver.switchTo().window(h);
64 if (driver.getTitle().contains("百度一下")) {
65 System.out.println("switch to search page successfully");
66 driver.findElement(By.cssSelector("#kw")).sendKeys("switch successfully");
67 break;
68 } else {
69 continue;
70 }
71 }
72
73 }
74
75 waitTime(3000);
76 driver.quit();
77
78 }
79
80 static public void waitTime(int time) {
81
82 try {
83 Thread.sleep(time);
84 } catch (InterruptedException e) {
85 // TODO Auto-generated catch block
86 e.printStackTrace();
87 }
88 }
89
90 }