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小编典典

如何在新标签页中打开网站中的每个产品以通过Python使用Selenium进行剪贴

selenium

我正在使用selenium抓取一个网站“ https://www.medline.com/catalog/category-
products.jsp?itemId=Z05-CA02_03&N=111079+4294770643&iclp=Z05-CA02_03 ”

对于单页和单个产品，我可以通过传递产品网址来进行抓取，但是我试图通过selenium来做到这一点，即在逐个选择所有产品后自动选择产品页面，并且应该移至下一页并在打开后产品详细信息页面应该刮掉，这是由美丽的汤完成的，这里是基本URL中的产品URL“
https://www.medline.com/product/SensiCare-Powder-Free-Nitrile-Exam-
Gloves/SensiCare/Z05-PF00342 ？question =＆index = P1＆indexCount =
1 “

这是我的代码：

    chromeOptions = webdriver.ChromeOptions()
    chromeOptions.add_experimental_option('useAutomationExtension', False)
    driver = webdriver.Chrome(executable_path='C:/Users/ptiwar34/Documents/chromedriver.exe', chrome_options=chromeOptions, desired_capabilities=chromeOptions.to_capabilities())
    driver.get("https://www.medline.com/catalog/category-products.jsp?itemId=Z05-CA02_03&N=111079+4294770643&iclp=Z05-CA02_03")

    while True:
        try:  
            WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//div[contains(@class, 'resultGalleryViewRow')]//div[@class='medGridProdTitle']//a[contains(@href]"))).click()
            print("Clicked for next page")
        except TimeoutException:
            print("No more pages")
            break
    driver.quit()

在这里它不会引发错误

它没有打开每个产品的页面，我想在新选项卡中打开每个产品，在将其废弃后删除并打开新产品的新选项卡


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2020-06-26

共1个答案

小编典典

从网页https://www.medline.com/catalog/category- products.jsp?itemId=Z05-CA02_03&N=111079+4294770643&iclp=Z05-CA02_03中打开每个产品的
新标签，并取消它，你必须诱导_WebDriverWait_的number_of_windows_to_be(2)，你可以使用下面的[定位策略：

  • 代码块：
        from selenium import webdriver
    from selenium.webdriver.support.ui import WebDriverWait
    from selenium.webdriver.common.by import By
    from selenium.webdriver.support import expected_conditions as EC
    import time

    chrome_options = webdriver.ChromeOptions() 
    chrome_options.add_argument("start-maximized")
    driver = webdriver.Chrome(options=chrome_options, executable_path=r'C:\WebDrivers\chromedriver.exe')

    driver.get("https://www.medline.com/catalog/category-products.jsp?itemId=Z05-CA02_03&N=111079+4294770643&iclp=Z05-CA02_03")
    my_hrefs = [my_elem.get_attribute("href") for my_elem in WebDriverWait(driver, 5).until(EC.visibility_of_all_elements_located((By.XPATH, "//div[contains(@class, 'resultGalleryViewRow')]//div[@class='medGridProdTitle']//a")))]
    windows_before  = driver.current_window_handle # Store the parent_window_handle for future use
    for my_href in my_hrefs:
        driver.execute_script("window.open('" + my_href +"');")
        WebDriverWait(driver, 10).until(EC.number_of_windows_to_be(2)) # Induce  WebDriverWait for the number_of_windows_to_be 2
        windows_after = driver.window_handles
        new_window = [x for x in windows_after if x != windows_before][0] # Identify the newly opened window
        driver.switch_to.window(new_window) # switch_to the new window
        time.sleep(3) # perform your webscrapping here
        print(driver.title) # print the page title or your perform your webscrapping
        driver.close() # close the window
        driver.switch_to.window(windows_before) # switch_to the parent_window_handle
    driver.quit() #quit your program
  • 控制台输出：
        SensiCare Powder-Free Nitrile Exam Gloves | Medline Industries, Inc.
    MediGuard Vinyl Synthetic Exam Gloves | Medline Industries, Inc.
    CURAD Stretch Vinyl Exam Gloves | Medline Industries, Inc.
    CURAD Nitrile Exam Gloves | Medline Industries, Inc.
    SensiCare Ice Blue Powder-Free Nitrile Exam Gloves | Medline Industries, Inc.
    MediGuard Synthetic Exam Gloves | Medline Industries, Inc.
    Accutouch Synthetic Exam Gloves | Medline Industries, Inc.
    Aloetouch Ice Powder-Free Nitrile Exam Gloves | Medline Industries, Inc.
    Aloetouch 3G Powder-Free Synthetic Exam Gloves | Medline Industries, Inc.
    SensiCare Powder-Free Stretch Vinyl Sterile Exam Gloves | Medline Industries, Inc.
    CURAD Powder-Free Textured Latex Exam Gloves | Medline Industries, Inc.
    Accutouch Chemo Nitrile Exam Gloves | Medline Industries, Inc.
    Aloetouch 12" Powder-Free Nitrile Exam Gloves | Medline Industries, Inc.
    Ultra Stretch Synthetic Exam Gloves | Medline Industries, Inc.
    Generation Pink 3G Synthetic Exam Gloves | Medline Industries, Inc.
    SensiCare Extended Cuff Powder-Free Nitrile Exam Gloves | Medline Industries, Inc.
    Eudermic MP High-Risk Powder-Free Latex Exam Gloves | Medline Industries, Inc.
    Aloetouch Powder-Free Latex Exam Gloves | Medline Industries, Inc.
    CURAD Powder-Free Nitrile Exam Gloves | Medline Industries, Inc.
    Medline Sterile Powder-Free Latex Exam Gloves | Medline Industries, Inc.
    SensiCare Silk Powder-Free Nitrile Exam Gloves | Medline Industries, Inc.
    Medline Sterile Powder-Free Latex Exam Glove Pairs | Medline Industries, Inc.
    MediGuard 2.0 Nitrile Exam Gloves | Medline Industries, Inc.
    Designer Boxed Vinyl Exam Gloves | Medline Industries, Inc.
2020-06-26