PhantomJS的行为与Firefox Webdriver不同

PhantomJS的行为与Firefox Webdriver不同

有两个关键问题帮助我解决了这一问题：

• 不要使用我之前为您提供帮助的自定义等待
• 将第

  window.document.body.scrollTop

  一个设置为0，然后

  document.body.scrollHeight

  连续设置为

工作代码：

results = []while len(results) < 200:    results = driver.find_elements_by_css_selector("div.flightbox")    print len(results)    # scroll    driver.execute_script("arguments[0].scrollIntoView();", results[0])    driver.execute_script("window.document.body.scrollTop = 0;")    driver.execute_script("window.document.body.scrollTop = document.body.scrollHeight;")    driver.execute_script("arguments[0].scrollIntoView();", results[-1])

---

版本2 （无限循环，如果滚动条上没有任何内容，则停止）：

results = []while True:    try:        wait.until(wait_for_more_than_n_elements((By.CSS_SELECTOR, "div.flightbox"), len(results)))    except TimeoutException:        break    results = self.driver.find_elements_by_css_selector("div.flightbox")    print len(results)    # scroll    for _ in xrange(5):        try: self.driver.execute_script("""     arguments[0].scrollIntoView();     window.document.body.scrollTop = 0;     window.document.body.scrollTop = document.body.scrollHeight;     arguments[1].scrollIntoView(); """, results[0], results[-1])        except StaleElementReferenceException: break  # here it means more results were loadedprint "DONE. Result count: %d" % len(results)

请注意，我已在

wait_for_more_than_n_elements

预期条件下更改了比较。替换为：

return count >= self.count

与：

return count > self.count

---

版本3 （从页眉滚动到页脚多次）：

header = wait.until(EC.visibility_of_element_located((By.TAG_NAME, 'header')))footer = wait.until(EC.visibility_of_element_located((By.TAG_NAME, 'footer')))results = []while True:    try:        wait.until(wait_for_more_than_n_elements((By.CSS_SELECTOR, "div.flightbox"), len(results)))    except TimeoutException:        break    results = self.driver.find_elements_by_css_selector("div.flightbox")    print len(results)    # scroll    for _ in xrange(5):        self.driver.execute_script(""" arguments[0].scrollIntoView(); arguments[1].scrollIntoView();        """, header, footer)        sleep(1)