Python实现的爬取百度文库功能示例

# -*- coding: utf-8 -*-from selenium import webdriverfrom bs4 import BeautifulSoupfrom docx import Documentfrom docx.enum.text import WD_ALIGN_PARAGRAPH# 用来居中显示标题from time import sleepfrom selenium.webdriver.common.keys import Keys# 浏览器安装路径#BROWSER_PATH=/'C:/Users/Administrator/AppData/Local/Google/Chrome/Application/chromedriver.exe'#目的URLDEST_URL='https://wenku.baidu.com/view/aa31a84bcf84b9d528ea7a2c.html'#用来保存文档doc_title = ''doc_content_list = []def find_doc(driver, init=True):  global doc_content_list  global doc_title  stop_condition = False  html = driver.page_source  soup1 = BeautifulSoup(html, 'lxml')  if (init is True): # 得到标题    title_result = soup1.find('div', attrs={'class': 'doc-title'})    doc_title = title_result.get_text() # 得到文档标题    # 拖动滚动条    init_page = driver.find_element_by_xpath( "//div[@class='foldpagewg-text-con']")    print(type(init_page), init_page)    driver.execute_script('arguments[0].scrollIntoView();', init_page)    init_page.click()    init = False  else:    try:      page = driver.find_element_by_xpath( "//div[@class='pagerwg-schedule']")      #print(type(next_page), next_page)      next_page = driver.find_element_by_class_name("pagerwg-button")      station = driver.find_element_by_xpath( "//div[@class='bottombarwg-root border-none']")      driver.execute_script('arguments[0].scrollIntoView(false);', station)      #js.executeScript("arguments[0].click();",next_page);      #sleep(5)      '''js = "window.scrollTo(508,600)"      driver.execute_script(js)'''      next_page.click()    except:      #结束条件      print("找不到元素")      stop_condition = True      #next_page.send_keys(Keys.ENTER)      # 遍历所有的txt标签标定的文档，将其空格删除，然后进行保存  content_result = soup1.find_all('p', attrs={'class': 'txt'})  for each in content_result:    each_text = each.get_text()    if ' ' in each_text:      text = each_text.replace(' ', '')    else:      text = each_text    # print(each_text)    doc_content_list.append(text)          # 得到正文内容  sleep(2) # 防止页面加载过慢  if stop_condition is False:    doc_title, doc_content_list = find_doc(driver, init)  return doc_title, doc_content_listdef save(doc_title, doc_content_list):  document = Document()  heading = document.add_heading(doc_title, 0)  heading.alignment = WD_ALIGN_PARAGRAPH.CENTER # 居中显示  for each in doc_content_list:    document.add_paragraph(each)  # 处理字符编码问题  t_title = doc_title.split()[0]  #print(t_title)  #document.save('2.docx')  document.save('百度文库-%s.docx'% t_title)  print("/n/nCompleted: %s.docx, to read." % t_title)  driver.quit()if __name__ == '__main__':  options = webdriver.ChromeOptions()  options.add_argument('user-agent="Mozilla/5.0 (Linux; Android 4.0.4; / Galaxy Nexus Build/IMM76B) AppleWebKit/535.19 (KHTML, like Gecko) / Chrome/18.0.1025.133 Mobile Safari/535.19"')  #driver = webdriver.Chrome(BROWSER_PATH, chrome_options=options)  driver = webdriver.Chrome(chrome_options=options)  driver.get(DEST_URL)  #JavascriptExecutor js = (JavascriptExecutor) driver;  print("**********START**********")  title, content = find_doc(driver, True)  save(title, content)  driver.quit()