问如何使用selenium webdriver (JAVA)处理chrome中弹出的“下载多个文件”确认消息？

EN

for (int i = 0; i < getOptions.size(); i++) {
        driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
        Thread.sleep(2000);
        System.out.println("Select Options Name: " + getOptions.get(i).getText());
        Select selctValue = new Select(
                driver.findElement(By.xpath("//ul/li[1]/div[@class='input-slect-fix-w']/select")));
        selctValue.selectByIndex(i); // Size Drop down 
        Thread.sleep(5000);
        log.info("Click on download templates link.");
        WebDriverWait wait = new WebDriverWait(driver, 30);
        wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("swtemplates")));
        wf.clickOnLink(By.id("swtemplates")); // Download link 
        Thread.sleep(5000);
        String getTitleOnPage = new String(driver.getTitle());
        Assert.assertFalse(getTitleOnPage.matches("(.*)404(.*)"), "Failed download templates...");

    }