225 lines
10 KiB
Python
225 lines
10 KiB
Python
# _*_ coding : UTF-8 _*_
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# @Time : 2024/11/20 21:49
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# @UpdateTime : 2024/11/20 21:49
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# @Author : haochen zhong
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# @File : CrawlZhongguoshehuibao.py
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# @Software : PyCharm
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# @Comment : 本程序采集中国社会报数据
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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, time
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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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start_date = datetime.strptime('2022-12-01', '%Y-%m-%d')
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"""中国社会报2022年12月01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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# 正则表达式提取年份、月份和数组内容
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pattern = r"_htep_(\d{4})_(\d{1,2})=new Array\((.*?)\);"
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pattern_url = r'<meta content="[^"]*URL=([^"]+)"[^>]*>'
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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['zhongguoshehuibao']
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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 "zhongguoshehuibao" 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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print("中国社会报数据表不存在，开始采集！")
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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("#articleFont p"):
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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 seconds_until_next_allowed_time() -> int:
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"""计算到下一个可运行时间的秒数"""
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now = datetime.now()
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current_time = now.time()
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start_time = time(7, 0, 0)
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end_time = time(23, 0, 0)
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if current_time < start_time:
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# 当前时间早于可运行时间，计算到 07:00:00 的时间差
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next_run = datetime.combine(now.date(), start_time)
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elif current_time > end_time:
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# 当前时间晚于可运行时间，计算到第二天 07:00:00 的时间差
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next_run = datetime.combine(now.date() + timedelta(days=1), start_time)
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else:
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# 当前时间在可运行时间内
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return 0
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delta = next_run - now
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return int(delta.total_seconds())
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async def loading():
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"""
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等待程序
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:return:
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"""
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# 获取当前时间
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now = datetime.now().time()
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# 定义时间范围
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start_time = time(7, 0, 0) # 07:00:00
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end_time = time(23, 0, 0) # 23:00:00
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# 判断当前时间是否在范围内
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if start_time <= now <= end_time:
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# print("当前时间在07:00:00--23:00:00范围内,中国可正常采集！")
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return True
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else:
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print("当前时间不在07:00:00--23:00:00范围内，中国社会报无法采集")
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awaitTime = await seconds_until_next_allowed_time()
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"""等待时间"""
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print(f"等待{awaitTime}秒后继续采集")
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await asyncio.sleep(awaitTime)
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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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date_url = "https://epaper.shehuiwang.cn/epaper/zgshb/pubdate.js"
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async with AsyncClient(headers=headers, timeout=60) as client:
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await loading()
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response = await client.get(date_url)
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response.encoding = response.charset_encoding
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js_text = response.text
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dayList = []
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for item in js_text.split("\n"):
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matches = re.findall(pattern, item.strip())
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# 解析匹配到的内容
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for year, month, data in matches:
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if (datetime(int(year), int(month), 1) - start_date).days < 0:
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continue
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# 将数组数据转为列表
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data_array = list(map(int, data.split(',')))
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for i, value in enumerate(data_array):
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current_date = datetime(int(year), int(month), 1) + timedelta(days=i)
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if value:
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dayList.append(current_date)
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for date in dayList:
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date_now_s = date.strftime('%Y/%m/%d')
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base_url = f"https://epaper.shehuiwang.cn/epaper/zgshb/{date_now_s}/"
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url = base_url + "pub_index.html"
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"""https://epaper.shehuiwang.cn/epaper/zgshb/2022/11/23/pub_index.html"""
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print(datetime.now().strftime("%Y-%m-%d %H:%M:%S"), url)
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try:
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await loading()
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response = await client.get(url, follow_redirects=True)
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response.encoding = response.charset_encoding
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match = re.search(pattern_url, response.text, re.IGNORECASE)
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if match:
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url = "https://epaper.shehuiwang.cn" + match.group(1)
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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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for item in soup.select(".listTitle a"):
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banmianming = item.text.split("：")[-1]
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banmianhao = item.text.split("：")[0]
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url1 = "https://epaper.shehuiwang.cn" + item.get("href")
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print(datetime.now().strftime("%Y-%m-%d %H:%M:%S"), url1)
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await loading()
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response1 = await client.get(url1)
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response1.encoding = response1.charset_encoding
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print(f"二级连接状态：{response1.status_code}")
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if response1.status_code == 200:
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soup1 = BeautifulSoup(response1.text, 'lxml')
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for item2 in soup1.select(".contentNews .humor a"):
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title = item2.text.strip()
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url2 = "https://epaper.shehuiwang.cn" + "/".join(
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item.get("href").split("/")[:-1]) + "/" + item2.get("href")
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if await collection.find_one({"detail_url": url2}, {"_id": False}):
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continue
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print(datetime.now().strftime("%Y-%m-%d %H:%M:%S"), url2)
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await loading()
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response2 = await client.get(url2)
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response2.encoding = response2.charset_encoding
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print(f"三级连接状态：{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(".articleTitle").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(".articleTitle2")[-1].text.strip()
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preTitle = soup2.select(".articleTitle2")[0].text.strip()
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except:
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subtitle = ""
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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": "empty",
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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,
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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"中国社会报---{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"中国社会报---{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"中国社会报---{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,
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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"中国社会报采集完毕，共采集{crawl_num}条数据！")
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asyncio.run(main())
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