python – 使用BeautifulSoup网站抓取ajax网站

2019年7月3日 200次阅读

我试图刮掉使用ajax调用来加载其下一页的电子商务网站.

我能够抓取第1页上的数据,但是当我将第1页滚动到底部时,第2页会自动通过ajax调用加载.

我的代码：

from bs4 import BeautifulSoup as soup
from urllib.request import urlopen as ureq
my_url='http://www.shopclues.com/mobiles-smartphones.html'
page=ureq(my_url).read()
page_soup=soup(page,"html.parser")
containers=page_soup.findAll("div",{"class":"column col3"})
for container in containers:
   name=container.h3.text
   price=container.find("span",{'class':'p_price'}).text
   print("Name : "+name.replace(","," "))
   print("Price : "+price)
for i in range(2,7):
    my_url="http://www.shopclues.com/ajaxCall/moreProducts?catId=1431&filters=&pageType=c&brandName=&start="+str(36*(i-1))+"&columns=4&fl_cal=1&page="+str(i)
    page=ureq(my_url).read()
    print(page)
    page_soup=soup(page,"html.parser")
    containers=page_soup.findAll("div",{"class":"column col3"})
    for container in containers:
        name=container.h3.text
        price=container.find("span",{'class':'p_price'}).text
        print("Name : "+name.replace(","," "))
        print("Price : "+price)

我已经打印了ureq读取的ajax页面,知道我是否能够打开ajax页面并得到一个输出：
《python – 使用BeautifulSoup网站抓取ajax网站》

b”是以下产出：
    打印(页)

请为我提供一个解决剩余数据的解决方案.

最佳答案

from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from bs4 import BeautifulSoup as soup
from urllib2 import urlopen as ureq
import random
import time

chrome_options = webdriver.ChromeOptions()
prefs = {"profile.default_content_setting_values.notifications": 2}
chrome_options.add_experimental_option("prefs", prefs)

# A randomizer for the delay
seconds = 5 + (random.random() * 5)
# create a new Chrome session
driver = webdriver.Chrome(chrome_options=chrome_options)
driver.implicitly_wait(30)
# driver.maximize_window()

# navigate to the application home page
driver.get("http://www.shopclues.com/mobiles-smartphones.html")
time.sleep(seconds)
time.sleep(seconds)
# Add more to range for more phones
for i in range(1):
    element = driver.find_element_by_id("moreProduct")
    driver.execute_script("arguments[0].click();", element)
    time.sleep(seconds)
    time.sleep(seconds)
html = driver.page_source
page_soup = soup(html, "html.parser")
containers = page_soup.findAll("div", {"class": "column col3"})
for container in containers:
# Add error handling
    try:
        name = container.h3.text
        price = container.find("span", {'class': 'p_price'}).text
        print("Name : " + name.replace(",", " "))
        print("Price : " + price)
    except AttributeError:
        continue
driver.quit()

我使用selenium加载网站并单击按钮以加载更多结果.然后获取生成的html并输入您的代码.

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