在Selenium/Python中从Amazon产品页面的图像中提取所有src属性

我正在使用Selenium从Amazon产品页面中获取详细信息（[示例][1]）。我已经成功地抓取了产品标题，但我还想获得所有产品图片的URL。这是我的密码：

from selenium import webdriver
from webdriver_manager.chrome import ChromeDriverManager

def search_amazon():
    driver = webdriver.Chrome(ChromeDriverManager().install())
    driver.get('https://www.amazon.com/Pendleton-Glacier-National-Queen-Blanket/dp/B003EQ4AYY/?_encoding=UTF8&pd_rd_w=dZURJ&pf_rd_p=ab102187-3a5a-49fd-b43f-4f928775aeae&pf_rd_r=PD8YGV8XA34FMYH7G9TJ&pd_rd_r=2cb55e9c-812a-43de-bf52-7e1976f5374b&pd_rd_wg=KmkoW&ref_=pd_gw_hfp13n_bbn')
    productName = driver.find_element_by_id('productTitle').text
    print(productName)
    imgList = driver.find_element_by_xpath('//*[@id="altImages"]/ul')
    options = imgList.find_elements_by_tag_name("li")

    for option in options:
        print(option.get_attribute("innerHTML"))

search_amazon()

末尾的options循环返回每个LI的innerHTML。但我无法访问IMG src，我尝试的是：

for option in options:
    src = option.find_element_by_tag_name("img").get_attribute("src")

这会引发NoTouchElementException：

NoSuchElementException: Message: no such element: Unable to locate element: {"method":"css selector","selector":"img"}

---

在为每个图像查找

li

元素时，应在路径中指定元素的类别，因为并非元素

/*[@id=“altImages”]/ul

的每个

li

都引用图像。因此，为了找到URL，您可以这样做：

def search_amazon():
    driver = webdriver.Chrome(ChromeDriverManager().install())
    driver.get('https://www.amazon.com/Pendleton-Glacier-National-Queen-Blanket/dp/B003EQ4AYY/?_encoding=UTF8&pd_rd_w=dZURJ&pf_rd_p=ab102187-3a5a-49fd-b43f-4f928775aeae&pf_rd_r=PD8YGV8XA34FMYH7G9TJ&pd_rd_r=2cb55e9c-812a-43de-bf52-7e1976f5374b&pd_rd_wg=KmkoW&ref_=pd_gw_hfp13n_bbn')
    productName = driver.find_element_by_id('productTitle').text
    print(productName)
    imgList = driver.find_element_by_xpath('//*[@id="altImages"]/ul')
    options = imgList.find_elements_by_xpath(".//li[contains(@class, 'imageThumbnail')]")

    for option in options:
        print(option.find_element_by_tag_name("img").get_attribute("src")

要打印

标记的src属性的值，您必须导出所有元素的

可见性（）


使用
CSS\u选择器
：


使用
XPATH
：

driver.get('https://www.amazon.com/Pendleton-Glacier-National-Queen-Blanket/dp/B003EQ4AYY/?_encoding=UTF8&pd_rd_w=dZURJ&pf_rd_p=ab102187-3a5a-49fd-b43f-4f928775aeae&pf_rd_r=PD8YGV8XA34FMYH7G9TJ&pd_rd_r=2cb55e9c-812a-43de-bf52-7e1976f5374b&pd_rd_wg=KmkoW&ref_=pd_gw_hfp13n_bbn')
print([my_elem.get_attribute("src") for my_elem in WebDriverWait(driver, 20).until(EC.visibility_of_all_elements_located((By.CSS_SELECTOR, "div#altImages>ul li[data-ux-click] img")))])


控制台输出：

driver.get('https://www.amazon.com/Pendleton-Glacier-National-Queen-Blanket/dp/B003EQ4AYY/?_encoding=UTF8&pd_rd_w=dZURJ&pf_rd_p=ab102187-3a5a-49fd-b43f-4f928775aeae&pf_rd_r=PD8YGV8XA34FMYH7G9TJ&pd_rd_r=2cb55e9c-812a-43de-bf52-7e1976f5374b&pd_rd_wg=KmkoW&ref_=pd_gw_hfp13n_bbn')
print([my_elem.get_attribute("src") for my_elem in WebDriverWait(driver, 20).until(EC.visibility_of_all_elements_located((By.XPATH, "//div[@id='altImages']/ul//li[@data-ux-click]//img")))])


注意：您必须添加以下导入：

['https://images-na.ssl-images-amazon.com/images/I/41Sj%2BO--J9L._AC_US40_.jpg', 'https://images-na.ssl-images-amazon.com/images/I/41iX14X%2BoRL._AC_US40_.jpg', 'https://images-na.ssl-images-amazon.com/images/I/41wiU-3N5JL._AC_US40_.jpg', 'https://images-na.ssl-images-amazon.com/images/I/41waNtDjTxL._AC_US40_.jpg']




工具书类
您可以在以下内容中找到一些相关的详细讨论：





为了获得实际图像而不是拇指，我使用了悬停功能。添加等待是安全的

from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC

这将获得实际的全尺寸图像SRC
@DecentExperience很高兴能够帮助您。你发现这对未来读者的利益很有帮助。看见
from selenium.webdriver.common.action_chains import ActionChains
...

for i in driver.find_elements_by_css_selector('#altImages .imageThumbnail'):
      hover = ActionChains(driver).move_to_element(i)
      hover.perform()
      driver.find_element_by_css_selector('.image.item.maintain-height.selected img').get_attribute('src'))