Selenium请求库爬取京东商品实例
from selenium import webdriver
# 导入键盘Keys
from selenium.webdriver.common.keys import Keys
import time
driver = webdriver.Chrome()
# 检测代码块
try:
# 隐式等待,等待标签加载
driver.implicitly_wait(10)
# 往京东主页发送请求
driver.get('https://www.jd.com/')
# 通过id查找input输入框
input_tag = driver.find_element_by_id('key')
# send_keys为当前标签传值
input_tag.send_keys('中华字典')
# 按键盘的回车键
input_tag.send_keys(Keys.ENTER)
time.sleep(3)
'''
爬取京东商品信息:
公仔
名称
url
价格
评价
'''
# element 找一个
# elements 找多个
# 查找所有的商品列表
good_list = driver.find_elements_by_class_name('gl-item')
# print(good_list)
# 循环遍历每一个商品
for good in good_list:
# 通过属性选择器查找商品详情页url
# url
good_url = good.find_element_by_css_selector('.p-img a').get_attribute('href')
print(good_url)
# 名称
good_name = good.find_element_by_css_selector('.p-name em').text
print(good_name)
# 价格
good_price = good.find_element_by_class_name('p-price').text
print(good_price)
# 评价数
good_commit = good.find_element_by_class_name('p-commit').text
print(good_commit)
str1 = f'''
url: {good_url}
名称: {good_name}
价格: {good_price}
评价: {good_commit}
'''
# 把商品信息写入文本中
with open('jd.txt', 'a', encoding='utf-8') as f:
f.write(str1)
time.sleep(10)
# 捕获异常
except Exception as e:
print(e)
# 最后都会把驱动浏览器关闭掉
finally:
driver.close()