from bs4 import BeautifulSoup def crawl_website(url): response = requests.get(url) html_content = response.textsoup = BeautifulSoup(html_content, "html.parser") title = soup.title.text paragraphs = soup.find_all
1#!/usr/bin/python2importurllib23importre45#download a web file (.html) of url with given name6defdownURL(url, filename):7try:8fp =urllib2.urlopen(url)9except:10print'download exception'11returnFalse12op = open(filename,'wb')13whileTrue:14s =fp.read()15ifnots:16break17op.write(s...
我们建一个abroadwebsite的项目和名为abroad的爬虫(通用爬虫 -t crawl) 先分析站点信息 会发现每一个站点网址都会有“site”这个字符,把它存入RulesLinkExtractor中的allow里 打开网址 这里有网站的具体信息,我们用xpath把自己认为有用的提取出来就行 最后我们还要把每一页到下一页的节点分析出来 这里把下一页的网址...
'User-Agent':'Mozilla/5.0(Windows NT 10.0;Win64;x64)AppleWebKit/537.36(KHTML,like Gecko)Chrome/91.0.4472.124 Safari/537.36'} #控制请求频率，设置间隔时间为2秒 def delay_request():time.sleep(2)response=requests.get(url,headers=headers)#处理响应数据 #...#进行网页爬取 def crawl_web...
find_all('a')] return links def crawl_website(url, depth): """递归爬取网站所有页面""" if depth == 0: return links = get_links(url) for link in links: if not link.startswith('http'): link = url + link try: response = requests.get(link) soup = BeautifulSoup(response.content,...
# Crawl responsibly by identifying yourself (and your website) on the user-agent #USER_AGENT = 'suningBook (+http://www.yourdomain.com)' # Obey robots.txt rules ROBOTSTXT_OBEY = False # LOG_LEVEL = 'WARNING' #为了使得控制台输出整洁调整了输出的等级,并且报错会在本地生产log。txt的文件 ...
Crawlee—A web scraping and browser automation library for Python to build reliable crawlers. Extract data for AI, LLMs, RAG, or GPTs. Download HTML, PDF, JPG, PNG, and other files from websites. Works with BeautifulSoup, Playwright, and raw HTTP. Both h
Start URL: URL of the website to start crawling. The Glob pattern to match URLs to crawl. Folder name: Directory to store your markdown files and the compiled PDF. Example Output Structure Your markdown files will be neatly structured to match the crawled website's URL structure: crawls/...
scrapy crawl basic -s SQLITE_LOCATION=sainsburys.db 不要忘记添加带有-s设置标志的 SQLite 位置。没有这个你会得到一个异常。您可以在本章的源代码中找到一个使用 SQLite 将提取的信息存储在文件夹04_sqlite中的蜘蛛。自带出口商如果您一直坚持下去,并且认为默认的导出解决方案不符合您的需要,那么这一节是最有...
# https://doc.scrapy.org/en/latest/topics/spider-middleware.htmlBOT_NAME='soudu'SPIDER_MODULES=['soudu.spiders']NEWSPIDER_MODULE='soudu.spiders'# Crawl responsibly by identifyingyourself(and your website)on the user-agent #USER_AGENT='soudu (+http://www.yourdomain.com)'# Obey robots.tx...