网页抓取仅提供页面上的前 4 个元素

Question

我试图用 selenium 废弃此页面上的搜索结果元素：https://shop.bodybuilding.com/search?q=protein+bar&selected_tab=Products，但结果它只给了我前 4 个元素。 我不确定为什么？这是一个javascript页面？以及如何删除此搜索页面上的所有元素？ 这是我创建的代码：

import requests
import numpy as np
import pandas as pd
from bs4 import BeautifulSoup
from selenium import webdriver
driver = webdriver.Chrome(executable_path='C:/chromedriver')
url = 'https://shop.bodybuilding.com/search?q=protein+bar&selected_tab=Products'
driver.get(url)
soup = BeautifulSoup(driver.page_source, 'html.parser')
all_items = soup.find_all('div', {'class': 'ProductTile ProductTile--flat Animate AnimateOnHover Animate--fade-in Animate--animated'})


for i in range(len(all_items)):
    prices=all_items[i].find('div', {'class': 'Price ProductTile__price'}).text
    names=all_items[i].find('p', {'class': 'ProductTile__title'}).text
    images=all_items[i].find('img')['src']
    url=all_items[i].find('a', {'class': 'Anchor ProductTile__image'})['href']

    print(images)

    
    

这是此页面上名称的结果，如您所见，它仅抓取前 4 个元素！

BSN Protein Crisp Bars
Optimum Nutrition Protein Wafers
Herbaland Vegan Protein Gummies
Battle Bars Full Battle Rattle (FBR) Protein Bar

价格、图片和网址都一样吗？

Answer 1

如何解决

你必须滚动，所以所有项目都会被加载：

last_height = driver.execute_script("return document.body.scrollHeight")

while True:
    driver.execute_script("window.scrollTo(0, document.body.scrollHeight);")

    time.sleep(1)

    new_height = driver.execute_script("return document.body.scrollHeight")
    if new_height == last_height:
        break
    last_height = new_height

soup = BeautifulSoup(driver.page_source, 'html.parser')
all_items = soup.find_all('div', {'class': 'ProductTile ProductTile--flat Animate AnimateOnHover Animate--fade-in Animate--animated'})


for i in all_items:
    prices=i.find('div', {'class': 'Price ProductTile__price'}).text if i.find('div', {'class': 'Price ProductTile__price'}) else None
    names=i.find('p', {'class': 'ProductTile__title'}).text
    images=i.find('img')['src']
    url=i.find('a', {'class': 'Anchor ProductTile__image'})['href']

    print(images)