使用lxml的css选择器用法爬取奇书网并保存到mongoDB中

requests from lxml import etree from fake_useragent import UserAgent import pymongo class QiShuSpider(object): def __init__(self): self.base_url="https://www.qisuu.la/soft/sort01/" self.headers={ "User-Agent":UserAgent().random, "HOST":"www.qisuu.la", "Referer":"https://www.qisuu.la", } def get_index_code(self): #声明一个变量，记录重连的次数 retry_link_count=0 while True: try: response=requests.get(self.base_url,headers=self.headers) # print(response.text) except Exception as e: print("连接奇书网失败，原因是:",e) print("正在尝试第{}次重连....".format(retry_link_count)) retry_link_count+=1 if retry_link_count>=5: print("尝试连接次数已经达到五次，停止连接") break else: html_obj=etree.HTML(response.text) # print(response.text) #获取option这个标签列表 option_list=html_obj.cssselect("select>option") return option_list def get_every_page_code(self): option_list=self.get_index_code() for option in option_list: value=option.get("value") #拼接每一页的完整地址 base_url="https://www.qisuu.la"+value print("正在爬取{}链接".format(base_url)) response=requests.get(base_url,headers=self.headers).text html_obj=etree.HTML(response) #获取每一本小数所在的a标签的一个列表 a_list=html_obj.cssselect(".listBox li>a") for a in a_list: novel_href=a.get("href") #拼接每一本小说的完整地址 novel_url="https://www.qisuu.la"+novel_href print("正在爬取链接为{}的小说".format(novel_url)) self.parse_every_novel(novel_url) def parse_every_novel(self,novel_url): reponse=requests.get(novel_url,headers=self.headers) reponse.encoding="utf-8" html_obj=etree.HTML(reponse.text) novel_name=html_obj.cssselect(".detail_right>h1")[0].text clik_num=html_obj.cssselect(".detail_right>ul>li:nth-child(1)")[0].text novel_size=html_obj.cssselect(".detail_right>ul>li:nth-child(2)")[0].text novel_type=html_obj.cssselect(".detail_right>ul>li:nth-child(3)")[0].text update_time = html_obj.cssselect(".detail_right>ul>li:nth-child(4)")[0].text novel_status = html_obj.cssselect(".detail_right>ul>li:nth-child(5)")[0].text novel_author = html_obj.cssselect(".detail_right>ul>li:nth-child(6)")[0].text novel_run_envir=html_obj.cssselect(".detail_right>ul>li:nth-child(7)")[0].text novel_lasted_chapter=html_obj.cssselect(".detail_right>ul>li:nth-child(8)>a")[0].text dict_novel={"小说名称":novel_name,"点击次数":clik_num,"小说大小":novel_size,"小说类型":novel_type,"更新时间":update_time,"小说状态":novel_status,"小说作者":novel_author,"小说运行环境":novel_run_envir,"小说最新章节":novel_lasted_chapter} collection.insert_one(dict_novel) def start_spider(self): self.get_every_page_code() if __name__ == ‘__main__‘: client = pymongo.MongoClient(host="localhost", port=27017) db = client.novel collection = db.novel spider=QiShuSpider() spider.start_spider()

 

使用lxml的css选择器用法爬取奇书网并保存到mongoDB中

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