我單擊代碼“Go”中的一個按鈕，打開一個新窗口。當我檢查任務管理器時，我可以看到 IE 的實例為 2，但getWindowHandles()無法獲取新打開的窗口的句柄，僅返回父窗口句柄。我用來執行此操作的代碼是：SeleniumUtils.clickOnElement(webDriver, By.xpath("//input[@name='Go' and @value='Go']"), "Click on Go", reporter);SeleniumUtils.waitLoading(SeleniumUtils.WAIT_LONG);List<String> windowsList = new ArrayList<>();String parentWindow = webDriver.getWindowHandle();windowsList.add(parentWindow);String emailWindow = SeleniumUtils.changeDriverToTheNewWindow(webDriver, windowsList, windowsList.size()+1);windowsList.add(emailWindow);為了切換到新窗口，我編寫了一個函數：public static String changeDriverToTheNewWindow(WebDriver webDriver, List<String> previousWindows, int numberOfWindows) {    try {        JavascriptExecutor jsExecuter = (JavascriptExecutor) webDriver;         Set<String> windows = Collections.emptySet();        try         {            WebDriverWait wait = new WebDriverWait (webDriver, 5);            wait.until(ExpectedConditions.numberOfWindowsToBe(numberOfWindows));                windows = webDriver.getWindowHandles();        }catch(Exception e) {            lLogger.error("Error getting the window handles.", e);            windows = webDriver.getWindowHandles();        }        for (String windowId : windows) {            if (!previousWindows.contains(windowId)) {                webDriver.switchTo().window(windowId);                jsExecuter.executeScript("window.focus");                //changeDriverToWindow(webDriver, windowId);                return windowId;            }        }    } catch (Exception e) {        lLogger.error("Error changing driver to the new window!", e);    }    return null;}打開窗口的 HTML 和 JS 代碼是：<td class="xyz-column"><link href="../Content/css/XYZ.css" rel="stylesheet" type="text/css"><script type="text/javascript">    function onMouseOver(control) {        control.src = '../Content/images/lookup.png';    }    function onMouseOut(control) {        control.src = '../Content/images/btn_lookup.png';    }</script>