python爬虫（四）之九章智算汽车文章爬虫

news2024/11/25 14:59:08

python爬虫（四）之九章智算汽车文章爬虫

闲来没事就写一条爬虫抓取网页上的数据，现在数据已经抓完，将九章智算汽车文章的爬虫代码分享出来。当前代码采用python编写，可抓取所有文章，攻大家参考。

import requests
import json
import csv
from lxml import etree
import time


class JiuzhangAI:

    def __init__(self):
        self.article_list_pre_url = "http://jiuzhang-ai.com/col.jsp?id=105"

        self.start_page = 1
        self.end_page = 1000

        self.headers = {
            'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7',
            'Accept-Language': 'zh-CN,zh;q=0.9',
            'Cache-Control': 'max-age=0',
            'Connection': 'keep-alive',
            'Cookie': '_siteStatVisitorType=visitorType_28545812; _siteStatRedirectUv=redirectUv_28545812; _cliid=ui9MLktTy5IU8qQF; _checkSiteLvBrowser=true; _siteStatId=d6211b21-c0af-4f93-a5df-91f51871188d; _siteStatDay=20240313; _siteStatVisit=visit_28545812; _lastEnterDay=2024-03-13; _siteStatReVisit=reVisit_28545812; _reqArgs=; _siteStatVisitTime=1710339315683',
            'Upgrade-Insecure-Requests': '1',
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36'
        }

        self.article_detail_headers = {
            'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7',
            'Accept-Language': 'zh-CN,zh;q=0.9',
            'Cache-Control': 'max-age=0',
            'Connection': 'keep-alive',
            'Cookie': '_siteStatVisitorType=visitorType_28545812; _siteStatRedirectUv=redirectUv_28545812; _cliid=ui9MLktTy5IU8qQF; _checkSiteLvBrowser=true; _siteStatId=d6211b21-c0af-4f93-a5df-91f51871188d; _siteStatDay=20240313; _siteStatVisit=visit_28545812; _lastEnterDay=2024-03-13; _siteStatReVisit=reVisit_28545812; _reqArgs=%7B%22args%22%3A%7B%22id%22%3A233%7D%2C%22anchor%22%3A%22_np%3D0_633_7%22%2C%22type%22%3A10%7D; _siteStatVisitTime=1710343180119',
            'Upgrade-Insecure-Requests': '1',
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36'
        }

    def post_request(self, url):
        # response = requests.request("GET", url, headers=headers, data=payload)
        # return response.text
        pass

    def get_request(self, url, headers):
        response = requests.request("GET", url, headers=headers)
        return response.text

    def do_work(self):
        with open('九章智驾.csv', 'w', newline='', encoding='utf-8-sig') as file:
            writer = csv.writer(file)
            csv_title = ["文章分类", "标题", "作者", "发布时间", "原文地址", "正文"]
            writer.writerow(csv_title)

            text = requests.get(self.article_list_pre_url, headers=self.headers).text
            html = etree.HTML(text)
            # tag_hrefs = html.xpath("//div/div[1]/span/a/@href")
            tags = html.xpath("//div/div[1]/span/a")

            # 遍历所有类别
            for tag in tags:
                tag_href = tag.xpath("./@href")[0]
                tag_title = tag.xpath("./text()")[0].replace("\n", "").replace(" ", "")

                # 1. 写第一页
                article_text = requests.get(tag_href, headers=self.headers).text
                articles_html = etree.HTML(article_text)
                article_list_html = articles_html.xpath('//*[@id="newsList31"]/div[@topclassname="top1"]')
                print(tag_href)

                # 遍历所有文章列表
                self.write_page(writer, article_list_html, tag_title)

                # 2. 从2页开始写
                max_page = articles_html.xpath('//span[@class="pageNo"]/a/span/text()')
                if len(max_page) > 0:
                    max_page = int(max_page[0])
                    for current_page in range(2, max_page):
                        article_text = requests.get(tag_href + "&m31pageno=" + current_page, headers=self.headers).text
                        articles_html = etree.HTML(article_text)
                        article_list_html = articles_html.xpath('//*[@id="newsList31"]/div[@topclassname="top1"]')
                        print(tag_href)

                        # 遍历所有文章列表
                        self.write_page(writer, article_list_html, tag_title)

            # page_no = 1
            # pageCallback = self.init_page_callback
            # while True:
            #     print("================> 当前第" + str(page_no) + "页 ============")
            #
            #     text = self.post_request(self.article_list_pre_url)
            #     data = json.loads(text)["data"]
            #     pageCallback = data["pageCallback"]
            #     itemList = data["itemList"]
            #     # self.write_page(writer, itemList)
            #
            #     page_no += 1

    def write_page(self, writer, article_list_html, tag_title):
        for article_html in article_list_html:
            article_href = article_html.xpath("./table/tr/td[@class='newsTitle']/a/@href")[0]
            publish_date = article_html.xpath("./table/tr/td[@class='newsCalendar']/a/text()")[0]
            article_title = article_html.xpath("./@newsname")[0]
            # print(article_href)
            # print(article_title)
            # print(publish_date)

            article_text = requests.get(url=article_href, headers=self.article_detail_headers).text
            article_detail_html = etree.HTML(article_text)
            article_detail_text = article_detail_html.xpath(
                "normalize-space(//div[@class='richContent  richContent0'])")
            article_author = article_detail_html.xpath("//span[@class='newsInfo newsInfo_author']/text()")
            if len(article_author) > 0:
                article_author = article_author[0]
            else:
                article_author = ""
            # print(article_detail_text)
            # print(article_author)

            row = [tag_title, article_title, article_author.replace("作者：", ""), publish_date, article_href,
                   article_detail_text]
            writer.writerow(row)

            print("===========> 当前文章 " + article_href + " 写入完毕", )


if __name__ == '__main__':
    jiuzhangAI = JiuzhangAI()
    jiuzhangAI.do_work()