# _*_ coding : UTF-8 _*_ # @Time : 2024/11/08 00:07 # @UpdateTime : 2024/11/08 00:07 # @Author : haochen zhong # @File : CrawlZhongguojingjidaobao.py # @Software : PyCharm # @Comment : 本程序采集中国经济导报数据 import asyncio import random from datetime import datetime, timedelta from bs4 import BeautifulSoup from httpx import AsyncClient from motor.motor_asyncio import AsyncIOMotorClient start_date = datetime.strptime('2012-09', '%Y-%m') """中国经济导报2012年9月份开始有数据""" end_date = datetime.today() """截止到今天""" headers = { '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'} # 链接数据库 client = AsyncIOMotorClient('mongodb://localhost:27017') db = client['buweijiguanbao'] collection = db['zhongguojingjidaobao'] async def main(): collection_names = await db.list_collection_names() # 判断数据表是否存在 if "zhongguojingjidaobao" not in collection_names: # 如果不存在，则从2017年9月开始爬取 print("中国经济导报数据表不存在，开始采集！") await getData(start_date, end_date) else: # 如果存在，则从数据库中获取最后一条记录的日期 last_record = await collection.find_one({}, sort=[('release_time', -1)]) last_date_str = last_record['release_time'] print("数据库截止时间:", last_date_str) await getData(last_date_str, end_date) async def getContent(soup: BeautifulSoup) -> str: """ :param soup: BeautifulSoup对象 :return: 文章内容 """ content = "" for p in soup.select("#pgcontent"): para = p.text.strip() if para: content += para content += '\n' return content async def getData(start_date: datetime, end_date: datetime): """ :param start_date: 开始日期 :param end_date: 结束日期 :return: None """ crawl_num = 0 # 创建一个列表保存月份 months = [] # 从开始日期到结束日期，每个月份都添加到列表中 current_date = start_date current_date = current_date.replace(day=1) while current_date <= end_date: months.append(current_date) # 增加一个月 if current_date.month == 12: current_date = current_date.replace(year=current_date.year + 1, month=1) else: current_date = current_date.replace(month=current_date.month + 1) # 遍历月份列表 for month in months: # 构造URL url = f'http://www.ceh.com.cn/epaper/uniflows/html/{month.strftime("%Y/%m")}/date.txt' """http://www.ceh.com.cn/epaper/uniflows/html/2012/09/date.txt""" print(datetime.now().strftime("%Y-%m-%d %H:%M:%S"), url) try: async with AsyncClient(headers=headers, timeout=60) as client: # 发送GET请求 response = await client.get(url) response.encoding = "gb2312" print(f"一级连接状态：{response.status_code}") if response.status_code == 200: # 解析XML soup = response.text.split("|") for period in soup: period_id, element = period.split(",") if len(element) < 5: continue url1 = f"http://www.ceh.com.cn/epaper/uniflows/html/{month.strftime('%Y/%m')}/{period_id}/boardurl.htm" """http://www.ceh.com.cn/epaper/uniflows/html/2012/09/01/boardurl.htm""" print(datetime.now().strftime("%Y-%m-%d %H:%M:%S"), url1) response2 = await client.get(url1) response2.encoding = "gb2312" print(f"二级连接状态：{response2.status_code}") if response2.status_code == 200: soup2 = BeautifulSoup(response2.text, 'lxml') for item in soup2.select(".board_link td>a"): url2 = f"http://www.ceh.com.cn/epaper/uniflows/html/{month.strftime('%Y/%m')}/{period_id}/" + item.get( "href") """http://www.ceh.com.cn/epaper/uniflows/html/2024/11/07/01/default.htm""" banmianming = item.text.split("：")[-1].strip() banmianhao = item.text.split("：")[0].replace(" ", "").replace(" ", "").strip() print(datetime.now().strftime("%Y-%m-%d %H:%M:%S"), url2) response3 = await client.get(url2) response3.encoding = "gb2312" print(f"三级连接状态：{response3.status_code}") if response3.status_code == 200: soup3 = BeautifulSoup(response3.text, 'lxml') for item2 in soup3.select("#mp_32"): url3 = f"http://www.ceh.com.cn/epaper/uniflows/html/{month.strftime('%Y/%m')}/{period_id}/" + \ item.get("href").split("/")[0] + "/" + item2.get("href") if await collection.find_one({"detail_url": url3}, {"_id": False}): continue title = item2.text.strip() print(datetime.now().strftime("%Y-%m-%d %H:%M:%S"), url3) response4 = await client.get(url3) response4.encoding = "gb2312" print(f"四级连接状态：{response4.status_code}") if response4.status_code == 200: soup4 = BeautifulSoup(response4.text, 'lxml') try: title = soup4.select(".content_title")[0].text.strip() except: title = title try: subtitle = soup4.select(".subtitle")[0].text.strip() except: subtitle = "" try: preTitle = soup4.select(".yinti_title")[0].text.strip() except: preTitle = "" try: author = soup4.select(".others")[0].text.strip() except: author = "" content = await getContent(soup4) await collection.insert_one({ "title": title, "subtitle": subtitle, "preTitle": preTitle, "author": author, "banmianming": banmianming, "banmianhao": banmianhao, 'keywordlist': 'empty', 'detail_url': url3, 'release_time': month + timedelta(days=int(period_id) - 1), 'insert_timestamp': datetime.today(), 'content': content }) crawl_num += 1 print( f"中国经济导报---{month.strftime('%Y-%m')}-{period_id}---{banmianming}---{banmianhao}---{title}---采集完成！") await asyncio.sleep(random.randint(5, 15)) print( f"中国经济导报---{month.strftime('%Y-%m')}-{period_id}---{banmianming}---{banmianhao}----采集完成！") await asyncio.sleep(random.randint(5, 15)) print(f"中国经济导报---{month.strftime('%Y-%m')}-{period_id}-----采集完成！") await asyncio.sleep(random.randint(5, 15)) except Exception as e: await collection.insert_one( {'banmianhao': 'empty', 'banmianming': 'empty', 'preTitle': 'empty', 'title': 'empty', 'subtitle': 'empty', 'author': 'empty', 'keywordlist': 'empty', 'detail_url': url, 'release_time': month + timedelta(days=int(period_id)), 'insert_timestamp': datetime.today(), 'content': 'empty'} ) print(e) print(f"中国经济导报采集完毕，共采集{crawl_num}条数据！") asyncio.run(main())