成都创新互联网站制作重庆分公司

使用python采集脚本之家电子书资源并自动下载到本地的实例脚本-创新互联

jb51上面的资源还比较全,就准备用python来实现自动采集信息,与下载啦。

专注于为中小企业提供网站建设、网站制作服务,电脑端+手机端+微信端的三站合一,更高效的管理,为中小企业千阳免费做网站提供优质的服务。我们立足成都,凝聚了一批互联网行业人才,有力地推动了千余家企业的稳健成长,帮助中小企业通过网站建设实现规模扩充和转变。

Python具有丰富和强大的库,使用urllib,re等就可以轻松开发出一个网络信息采集器!

下面,是我写的一个实例脚本,用来采集某技术网站的特定栏目的所有电子书资源,并下载到本地保存!

软件运行截图如下:

使用python采集脚本之家电子书资源并自动下载到本地的实例脚本

在脚本运行时期,不但会打印出信息到shell窗口,还会保存日志到txt文件,记录采集到的页面地址,书籍的名称,大小,服务器本地下载地址以及百度网盘的下载地址!

实例采集并下载创新互联成都网站设计公司的python栏目电子书资源:

# -*- coding:utf-8 -*-
import re
import urllib2
import urllib
import sys
import os
reload(sys)
sys.setdefaultencoding('utf-8')
def getHtml(url):
 request = urllib2.Request(url)
 page = urllib2.urlopen(request)
 htmlcontent = page.read()
 #解决中文乱码问题
 htmlcontent = htmlcontent.decode('gbk', 'ignore').encode("utf8",'ignore')
 return htmlcontent
def report(count, blockSize, totalSize):
 percent = int(count*blockSize*100/totalSize)
 sys.stdout.write("r%d%%" % percent + ' complete')
 sys.stdout.flush()
def getBookInfo(url):
 htmlcontent = getHtml(url);
 #print "htmlcontent=",htmlcontent; # you should see the ouput html
 #

crifan

regex_title = '(?P.+?)</h2>'; title = re.search(regex_title, htmlcontent); if(title): title = title.group("title"); print "书籍名字:",title; file_object.write('书籍名字:'+title+'r'); #<li>书籍大小:<span itemprop="fileSize">27.2MB</span></li> filesize = re.search('<spans+?itemprop="fileSize">(?P<filesize>.+?)</span>', htmlcontent); if(filesize): filesize = filesize.group("filesize"); print "文件大小:",filesize; file_object.write('文件大小:'+filesize+'r'); #<div class="picthumb"><a href="//img.jbzj.com/do/uploads/litimg/151210/1A9262GO2.jpg" target="_blank" bookimg = re.search('<divs+?class="picthumb"><a href="(?P<bookimg>.+?)" rel="external nofollow" target="_blank"', htmlcontent); if(bookimg): bookimg = bookimg.group("bookimg"); print "封面图片:",bookimg; file_object.write('封面图片:'+bookimg+'r'); #<li><a href="http://xz6.jb51.net:81/201512/books/JavaWeb100(jb51.net).rar" target="_blank">酷云中国电信下载</a></li> downurl1 = re.search('<li><a href="(?P<downurl1>.+?)" rel="external nofollow" target="_blank">酷云中国电信下载</a></li>', htmlcontent); if(downurl1): downurl1 = downurl1.group("downurl1"); print "下载地址1:",downurl1; file_object.write('下载地址1:'+downurl1+'r'); sys.stdout.write('rFetching ' + title + '...n') title = title.replace(' ', ''); title = title.replace('/', ''); saveFile = '/Users/superl/Desktop/pythonbook/'+title+'.rar'; if os.path.exists(saveFile): print "该文件已经下载了!"; else: urllib.urlretrieve(downurl1, saveFile, reporthook=report); sys.stdout.write("rDownload complete, saved as %s" % (saveFile) + 'nn') sys.stdout.flush() file_object.write('文件下载成功!r'); else: print "下载地址1不存在"; file_error.write(url+'r'); file_error.write(title+"下载地址1不存在!文件没有自动下载!r"); file_error.write('r'); #<li><a href="http://pan.baidu.com/s/1pKfVNwJ" rel="external nofollow" target="_blank">百度网盘下载2</a></li> downurl2 = re.search('</a></li><li><a href="(?P<downurl2>.+?)" rel="external nofollow" target="_blank">百度网盘下载2</a></li>', htmlcontent); if(downurl2): downurl2 = downurl2.group("downurl2"); print "下载地址2:",downurl2; file_object.write('下载地址2:'+downurl2+'r'); else: #file_error.write(url+'r'); print "下载地址2不存在"; file_error.write(title+"下载地址2不存在r"); file_error.write('r'); file_object.write('r'); print "n"; def getBooksUrl(url): htmlcontent = getHtml(url); #<ul class="cur-cat-list"><a href="/books/438381.html" rel="external nofollow" class="tit"</ul></div><!--end #content --> urls = re.findall('<a href="(?P<urls>.+?)" rel="external nofollow" class="tit"', htmlcontent); for url in urls: url = "//www.jb51.net"+url; print url+"n"; file_object.write(url+'r'); getBookInfo(url) #print "url->", url if __name__=="__main__": file_object = open('/Users/superl/Desktop/python.txt','w+'); file_error = open('/Users/superl/Desktop/pythonerror.txt','w+'); pagenum = 3; for pagevalue in range(1,pagenum+1): listurl = "//www.jb51.net/ books/list476_%d.html"%pagevalue; print listurl; file_object.write(listurl+'r'); getBooksUrl(listurl); file_object.close(); file_error.close();</pre><p align=center>另外有需要云服务器可以了解下创新互联scvps.cn,海内外云服务器15元起步,三天无理由+7*72小时售后在线,公司持有idc许可证,提供“云服务器、裸金属服务器、<a href="https://www.cdcxhl.com/gaofang/" target="_blank">高防服务器</a>、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案,具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势,专为企业上云打造定制,能够满足用户丰富、多元化的应用场景需求。</p> <br> 网站题目:使用python采集脚本之家电子书资源并自动下载到本地的实例脚本-创新互联 <br> 标题链接:<a href="http://cxhlcq.com/article/dijhco.html">http://cxhlcq.com/article/dijhco.html</a> </div> </div> </div> <div class="other container"> <h3>其他资讯</h3> <ul> <li> <a href="/article/diphij.html">利用Django怎么对CAS进行集成-创新互联</a> </li><li> <a href="/article/dipphj.html">攻防世界简单web题-创新互联</a> </li><li> <a href="/article/diphcc.html">Django2.*+Mysql5.7开发环境整合的示例分析-创新互联</a> </li><li> <a href="/article/diphig.html">如何使用PHP5.3.x的strtotime()时区设定警告信息修复-创新互联</a> </li><li> <a href="/article/diphes.html">Java匿名类-创新互联</a> </li> </ul> </div> <div class="footer"> <div class="foota container"> <div class="foot_nav fl col-lg-8 col-md-8 col-sm-12 col-xs-12"> <ul> <li class="col-lg-3 col-md-3 col-sm-3 col-xs-6"> <h3>网站制作</h3> <a href="http://www.cxjianzhan.com/" target="_blank">网站制作公司</a><a href="http://www.wjwzjz.com/" target="_blank">温江网站制作</a><a href="http://www.cqcxhl.com/" target="_blank">重庆网站制作</a><a href="http://www.kswcd.com/mobile/" target="_blank">手机网站制作</a><a href="http://www.cdxwcx.cn/" target="_blank">成都网站制作</a><a href="http://m.cdcxhl.cn/dingzhi/" target="_blank">定制网站制作</a> </li> <li class="col-lg-3 col-md-3 col-sm-3 col-xs-6"> <h3>企业服务</h3> <a href="https://www.cdcxhl.com/link/" target="_blank">友情链接购买</a><a href="https://www.cdcxhl.com/ruanwen/yingxiao/" target="_blank">软文平台</a><a href="https://www.cdcxhl.com/link/" target="_blank">买友情链接</a><a href="https://www.cdcxhl.com/mianfei/jianshe/chengdu.html" target="_blank">免费网站建设</a><a href="https://www.cdcxhl.com/link/" target="_blank">友情链接出售</a><a href="https://www.cdcxhl.com/shoulu/" target="_blank">分类目录</a> </li> <li class="col-lg-3 col-md-3 col-sm-3 col-xs-6"> <h3>网站建设</h3> <a href="http://www.cdkjz.cn/fangan/tour/" target="_blank">旅游网站建设方案</a><a href="http://chengdu.cdcxhl.com/" target="_blank">成都网站建设</a><a href="https://www.cdxwcx.com/city/nanchong/" target="_blank">南充网站建设</a><a href="https://www.cdxwcx.com/city/dazhou/" target="_blank">达州网站建设</a><a href="https://www.cdxwcx.com/city/deyang/" target="_blank">德阳网站建设</a><a href="https://www.cdxwcx.com/city/leshan/" target="_blank">乐山网站建设</a> </li> <li class="col-lg-3 col-md-3 col-sm-3 col-xs-6"> <h3>服务器托管</h3> <a href="https://www.cdcxhl.com/idc/xixin.html" target="_blank">西信服务器托管</a><a href="https://www.cdxwcx.com/jifang/xiyun.html" target="_blank">成都西云机房</a><a href="https://www.cdcxhl.com/jigui/" target="_blank">成都机柜租用</a><a href="https://www.xwcx.net/" target="_blank">成都托管服务器</a><a href="https://www.xwcx.net/tgxq/cdghjf.html" target="_blank">成都光华机房</a><a href="https://www.cdcxhl.com/idc/cqst.html" target="_blank">重庆电信水土机房托管</a> </li> </ul> </div> <div class="footar fl col-lg-4 col-md-4 col-sm-12 col-xs-12"> <p>全国免费咨询:</p> <b>400-028-6601</b> <p>业务咨询:028-86922220 / 13518219792</p> <p>节假值班:18980820575 / 13518219792</p> <p>联系地址:成都市太升南路288号锦天国际A幢1002号</p> </div> </div> <div class="footb"> <div class="copy container"> <div class="fl">Copyright © 成都创新互联科技有限公司重庆分公司 <a href="https://beian.miit.gov.cn/" target="_blank">渝ICP备2021005571号</a></div> <!--<div class="fr"><a href="https://www.cdxwcx.com/" target="_blank">成都网站建设</a>:<a href="https://www.cdcxhl.com/" target="_blank">创新互联</a></div>--> </div> </div> <div class="link"> <div class="container"> 友情链接:: <a href="https://www.cdcxhl.com/" target="_blank">成都网站建设</a> <a href="https://www.cdcxhl.com/city/chongqing.html" target="_blank">重庆网站建设</a> <a href="">四川网站建设</a> <a href="">重庆建设网站</a> <a href="https://www.cdxwcx.com/jifang/xiyun.html" target="_blank">移动服务器托管</a> <a href="http://www.cdfuwuqi.com/" target="_blank">成都服务器托管</a> <a href="https://www.cdcxhl.cn/" target="_blank">云服务器</a> <a href="http://www.cdhuace.com/" target="_blank">广告设计制作</a> <a href="https://www.cdcxhl.com/sheji/chongqing.html" target="_blank">重庆网页设计</a> <a href="https://www.cdcxhl.com/zuo/chongqing.html" target="_blank">重庆做网站</a> <a href="https://www.cdcxhl.com/zhizuo/chongqing.html" target="_blank">重庆网站制作</a> <a href="">重庆网站建设</a> <a href="">重庆网站公司</a> <a href="">渝中网站制作</a> <a href="">重庆网站设计</a> </div> </div> </div> <div class="foot"> <ul class="public-celan"> <li> <a href="https://p.qiao.baidu.com/cps3/chatIndex?siteToken=6ce441ff9e2d6bedbdfc2a4138de449e&speedLogId=162260383240185e3_1622603832401_02407&eid=6256368&reqParam=%7B%22from%22%3A1%2C%22sessionid%22%3A%22-100%22%2C%22siteId%22%3A%2211284691%22%2C%22tid%22%3A%22-1%22%2C%22userId%22%3A%226256368%22%2C%22ttype%22%3A1%2C%22pageId%22%3A0%7D" target="_blank" class="a1 db tc"> <img src="/Public/Home/img/icon-23.png" alt="" class="db auto"> <span class="span-txt">在线咨询</span> </a> </li> <li> <a href="tel:18980820575" class="a1 db tc"> <img src="/Public/Home/img/icon-24.png" alt="" class="db auto"> <span class="span-txt">电话咨询</span> </a> </li> <li> <a target="_blank" href="tencent://message/?uin=1683211881&Site=&Menu=yes" class="a1 db tc"> <img src="/Public/Home/img/icon-25.png" alt="" class="db auto"> <span class="span-txt">QQ咨询</span> </a> </li> <li> <a target="_blank" href="tencent://message/?uin=532337155&Site=&Menu=yes" class="a1 db tc public-yuyue-up"> <img src="/Public/Home/img/icon-26.png" alt="" class="db auto"> <span class="span-txt">预约顾问</span> </a> </li> </ul> </div> <div class="customer"> <dl class="icon1"> <dt> <a href="tencent://message/?uin=1683211881&Site=&Menu=yes"> <i class="iconT"><img src="/Public/Home/img/QQ.png" alt=""></i> <p>在线咨询</p> </a> </dt> </dl> <dl class="icon2"> <dt><i><img src="/Public/Home/img/weixin.png" alt=""></i><p>微信咨询</p></dt> <dd><img src="/Public/Home/img/ewm.png"></dd> </dl> <dl class="icon3"> <dt><i><img src="/Public/Home/img/dianhua.png" alt=""></i><p>电话咨询</p></dt> <dd> <p>028-86922220(工作日)</p> <p>18980820575(7×24)</p> </dd> </dl> <dl class="icon4"> <dt class="sShow"> <a href="tencent://message/?uin=244261566&Site=&Menu=yes"> <i><img src="/Public/Home/img/dengji.png" alt=""></i><p>提交需求</p> </a> </dt> </dl> <dl class="icon5"> <dt class="gotop"> <a href="#top"> <i><img src="/Public/Home/img/top.png" alt=""></i><p>返回顶部</p> </a> </dt> </dl> </div> </body> </html> <script> $(".con img").each(function(){ var src = $(this).attr("src"); //获取图片地址 var str=new RegExp("http"); var result=str.test(src); if(result==false){ var url = "https://www.cdcxhl.com"+src; //绝对路径 $(this).attr("src",url); } }); window.onload=function(){ document.oncontextmenu=function(){ return false; } } </script>