需求：對(duì)某網(wǎng)站實(shí)現(xiàn)輸入指定的跳轉(zhuǎn)頁(yè)完成爬取并能保存到文本文件中

解決方法：通過(guò)Python的BeautifulSoup、selenium的Kyes完成該需求。

代碼見下：

import json import urllib.request import urllib.error from urllib.parse import quote from bs4 import BeautifulSoup from builtins import strfrom selenium import webdriver from selenium.webdriver.common.by import By from bs4 import BeautifulSoup from urllib.request import urlopen from selenium.common.exceptions import NoSuchElementException import re import time import datetime import sys sys.setrecursionlimit(1000000) import os import random from selenium.webdriver.common.keys import Keysdef getQuestionsTotalLinks(driver):bs = BeautifulSoup(driver.page_source, 'lxml')AllInfo=bs.findAll('tr', {'class': 'bgcol'})for info in AllInfo: #[0:2]if info.find('a', {'class':'xjxd_nr'}) is None:print("No usefull Info")#returnelse:paras=info.find('a', {'class': 'xjxd_nr'}).get('onclick').replace('detail(','').replace("'",'')[0:-2]listparas=paras.split(',')innerlink='http://www.shenl.com.cn/public/mhwz/todetail?id='+listparas[0]+'&isSearchPassWord='+listparas[1]+'&tag='+listparas[2]innerDetail=info.get_text().replace('\t','').replace('\n','|').split('|')while '' in innerDetail:innerDetail.remove('')f.write('\t'.join(innerDetail) + "\t" + innerlink + "\n")try:print(type(driver.find_element(By.LINK_TEXT, "下一頁(yè)")))driver.find_element_by_xpath("//a[contains(text(),'下一頁(yè)')]").click()except NoSuchElementException:time.sleep(1)print("No more pages found")returntime.sleep(random.randint(5, 20))getQuestionsTotalLinks(driver)if __name__ == '__main__':for n in range(0,1,1):import time''' Fully crawl by page number 全量指定頁(yè)面爬取'''IsoTimeFormat = '%Y_%m_%d'f = open('G:\\temp\\total\\HefeiQuestion_Incr_' + str(time.strftime(IsoTimeFormat)) + '.txt', 'w',encoding='utf-8')driver = webdriver.Chrome("C:\Program Files (x86)\Google\Chrome\Application\chromedriver.exe")driver.get("http://www.shenl.com.cn/public/mhwz/xjxdList")inputElement = driver.find_element_by_xpath("//input[@name='curPage']")inputElement.send_keys(Keys.BACKSPACE)inputElement.send_keys("2846")ele = driver.find_element_by_xpath("//input[@value='go']")ele.send_keys(Keys.ENTER)getQuestionsTotalLinks(driver)driver.close()f.close()

總結(jié)

以上是生活随笔為你收集整理的基于某网站的信息爬取与保存_指定跳转页的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問(wèn)題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯(cuò)，歡迎將生活随笔推薦給好友。