2024-11-13 05:28:11 +08:00
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# _*_ coding : UTF-8 _*_
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# @Time : 2024/11/13 02:34
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# @UpdateTime : 2024/11/13 02:34
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# @Author : haochen zhong
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# @File : CrawlRenmingonganbao.py
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# @Software : PyCharm
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# @Comment : 本程序采集人民公安报数据
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import asyncio
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import random
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import re
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from datetime import datetime, timedelta
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from bs4 import BeautifulSoup
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from httpx import AsyncClient
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from motor.motor_asyncio import AsyncIOMotorClient
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pattern = r"window\.location\.href=['\"](.*?)['\"]"
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"""正则匹配ID"""
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start_date = datetime.strptime('2020-04-01', '%Y-%m-%d')
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"""人民公安报2020年4月1日开始有数据"""
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end_date = datetime.today()
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"""截止到今天"""
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headers = {
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'User-Agent': 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36 Edg/107.0.1418.42'}
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# 链接数据库
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client = AsyncIOMotorClient('mongodb://localhost:27017')
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db = client['buweijiguanbao']
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collection = db['renmingonganbao']
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async def main():
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collection_names = await db.list_collection_names()
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# 判断数据表是否存在
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if "renmingonganbao" not in collection_names:
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# 如果不存在，则从2017年9月开始爬取
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2024-11-18 23:54:29 +08:00
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print("人民公安报数据表不存在，开始采集！")
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2024-11-13 05:28:11 +08:00
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await getData(start_date, end_date)
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else:
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# 如果存在，则从数据库中获取最后一条记录的日期
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last_record = await collection.find_one({}, sort=[('release_time', -1)])
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last_date_str = last_record['release_time']
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print("数据库截止时间:", last_date_str)
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await getData(last_date_str, end_date)
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async def getContent(soup: BeautifulSoup) -> str:
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"""
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:param soup: BeautifulSoup对象
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:return: 文章内容
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"""
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content = ""
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for p in soup.select("div.content_main > div:nth-child(2) .contentP"):
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para = p.text.strip()
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if para:
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content += para
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content += '\n'
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return content
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async def getData(start_date: datetime, end_date: datetime):
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""""
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:param start_date: 开始日期
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:param end_date: 结束日期
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:return: None
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"""
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crawl_num = 0
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for i in range((end_date - start_date).days):
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date_now = start_date + timedelta(days=i + 1)
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date_now_s = date_now.strftime('%Y_%m_%d')
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url = f"http://epaper.cpd.com.cn/szb/wwwcpd_9/dzb_16465/rmga/{date_now.year}/{date_now_s}/"
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"""http://epaper.cpd.com.cn/szb/wwwcpd_9/dzb_16465/rmga/2020/2020_04_05/"""
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print(datetime.now().strftime("%Y-%m-%d %H:%M:%S"), url)
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try:
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async with AsyncClient(headers=headers, timeout=60) as client:
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response = await client.get(url)
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response.encoding = response.charset_encoding
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text = response.text
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match = re.search(pattern, text)
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if match:
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url = url + match.group(1).replace("./", "")
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print(datetime.now().strftime("%Y-%m-%d %H:%M:%S"), url)
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response = await client.get(url)
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response.encoding = response.charset_encoding
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print(f"一级连接状态：{response.status_code}")
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if response.status_code == 200:
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soup = BeautifulSoup(response.text, 'lxml')
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cont_main = soup.select_one(".tab-title")
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if cont_main:
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script_tag = cont_main.find("script")
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if script_tag:
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script_content = script_tag.string
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soup1 = BeautifulSoup(
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script_content.replace("document.write('", "").replace("')", "").replace(";",
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"").replace(
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"'+'", "").strip(), "lxml")
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for item in soup1.select(".title-item"):
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banmianming = item.select_one(".title").text.split(" ")[-1]
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banmianhao = item.select_one(".title").text.split(" ")[0]
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for item2 in item.select(".title-list a"):
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title = item2.text
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url2 = item2.get("href")
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print(datetime.now().strftime("%Y-%m-%d %H:%M:%S"), url2)
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response2 = await client.get(url2)
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response2.encoding = response2.charset_encoding
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print(f"二级连接状态：{response2.status_code}")
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if response2.status_code == 200:
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soup2 = BeautifulSoup(response2.text, 'lxml')
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try:
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title = soup2.select_one(
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".cont-box > div>div:nth-child(2)").text.strip()
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except:
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title = title
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try:
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subtitle = soup2.select_one(
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".cont-box > div>div:nth-child(3)").text.strip()
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except:
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subtitle = ""
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try:
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preTitle = soup2.select_one(
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".cont-box > div>div:nth-child(1)").text.strip()
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except:
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preTitle = ""
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content = await getContent(soup2)
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await collection.insert_one({
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"title": title,
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"subtitle": subtitle,
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"preTitle": preTitle,
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"author": "",
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"banmianming": banmianming,
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"banmianhao": banmianhao,
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'keywordlist': "empty",
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'detail_url': url2,
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'release_time': date_now,
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'insert_timestamp': datetime.today(),
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'content': content
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})
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crawl_num += 1
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print(
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f"人民公安报---{date_now_s}---{banmianming}---{banmianhao}---{title}---采集完成！")
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await asyncio.sleep(random.randint(5, 15))
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print(f"人民公安报---{date_now_s}---{banmianming}---{banmianhao}-----采集完成！")
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await asyncio.sleep(random.randint(5, 15))
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print(f"人民公安报---{date_now_s}-----采集完成！")
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await asyncio.sleep(random.randint(5, 15))
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except Exception as e:
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await collection.insert_one(
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{'banmianhao': 'empty',
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'banmianming': 'empty',
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'preTitle': 'empty',
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'title': 'empty',
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'subtitle': 'empty',
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'author': 'empty',
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'keywordlist': 'empty',
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'detail_url': url,
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'release_time': date_now,
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'insert_timestamp': datetime.today(),
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'content': 'empty'}
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)
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print(e)
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print(f"人民公安报采集完毕，共采集{crawl_num}条数据！")
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asyncio.run(main())
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