找不到点击按钮后Selenium没有继续？

Question

if (!parent.equals(child_window)) {
                    driver.switchTo().window(child_window);
                    String title = driver.switchTo().window(child_window).getTitle();
                    j++;
                    System.out.println(j + " " + title);

                    try {
                        driver.switchTo().window(child_window).findElement(By.cssSelector("button.reply_button.js-only")).click();
                        Thread.sleep(9000);
                    } catch (NoSuchElementException ignored) {
                        System.out.println("No Element found");
                        continue;
                    } catch (StaleElementReferenceException ignoredxx) {
                        System.out.println("No Element found");
                        continue;
                    }

点击按钮打开弹出窗口。它工作，但当在页面上找不到按钮时，我收到此错误

 Exception in thread "main" org.openqa.selenium.NoSuchElementException: no such element: Unable to locate element:

。我试图将continue语句放在catch块中，但它根本不起作用。

Answer 1

尝试以下代码;

try {                            

WebDriverWait wait = new WebDriverWait(driver, 30);    

wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath(By.cssSelector("button.reply_button.js-only")));

driver.switchTo().window(child_window).findElement(By.cssSelector("button.reply_button.js-only")).click();

}