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selenium_demo.py
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108 lines (88 loc) · 3.29 KB
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# -*- coding: utf-8 -*-
"""
@author:XuMing（[email protected])
@description: selenium用于爬虫，主要是用来解决javascript渲染的问题
"""
import time
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support import expected_conditions
from selenium.webdriver.support.wait import WebDriverWait
def search_baidu_and_fetch(url='https://www.baidu.com', query='姚明老婆是谁？'):
browser.get(url)
q = browser.find_element_by_id('kw')
q.send_keys(query)
q.send_keys(Keys.ENTER)
wait = WebDriverWait(browser, 3)
wait.until(expected_conditions.presence_of_element_located((By.ID, 'content_left')))
print('current_url:', browser.current_url)
print('get_cookies:', browser.get_cookies())
print('page_source:', browser.page_source[:100])
time.sleep(1)
def get_page_source():
url = 'https://www.baidu.cn'
browser.get(url)
print('url:{}, page_source:{}'.format(url, browser.page_source[:100]))
def get_page_element():
browser.get('http://www.taobao.com')
print(browser.page_source)
lst = browser.find_element_by_css_selector('li')
lst_c = browser.find_element(By.CSS_SELECTOR, 'li')
print(lst, lst_c)
def get_page_search_element():
"""对获取到的元素调用交互方法"""
browser.get('https://www.baidu.com')
q = browser.find_element_by_id('kw')
q.send_keys('iphone')
q.send_keys(Keys.ENTER)
print(browser.current_url)
print(len(browser.page_source))
time.sleep(5)
q.clear()
q.send_keys('ipad')
q.send_keys(Keys.ENTER)
# button = browser.find_element_by_class_name('btn-search')
# button.click()
print(browser.current_url)
print(len(browser.page_source))
time.sleep(5)
def add_action_source():
from selenium.webdriver import ActionChains
url = 'https://www.runoob.com/try/try.php?filename=jqueryui-api-droppable'
browser.get(url)
browser.switch_to.frame('iframeResult')
source = browser.find_element_by_id('draggable')
target = browser.find_element_by_id('droppable')
actions = ActionChains(browser)
actions.drag_and_drop(source, target)
actions.perform()
'''
1.先用switch_to_alert()方法切换到alert弹出框上
2.可以用text方法获取弹出的文本 信息
3.accept()点击确认按钮
4.dismiss()相当于点右上角x，取消弹出框
'''
time.sleep(2)
print(browser.current_url)
def exe_script():
browser.get('https://www.zhihu.com/explore')
browser.execute_script('window.scrollTo(0,document.body.scrollHeight)')
browser.execute_script('alert("To button")')
def get_text():
browser.get('https://www.zhihu.com/explore')
logo = browser.find_element_by_id("Popover1-toggle")
print(logo)
print(logo.text)
print(logo.get_attribute("class"))
print('logo id, location, tag_name, size:')
print(logo.id, logo.location, logo.tag_name, logo.size)
if __name__ == '__main__':
# ps：启动环境要求：1.打开safari的偏好设置你的高级-开发菜单；2.开发菜单中打开允许远程自动化。
browser = webdriver.Safari()
# search_baidu_and_fetch()
# get_page_search_element()
# add_action_source()
# exe_script()
get_text()
browser.close()