Python爬取读者并制作成PDF

学了下beautifulsoup后,做个个网络爬虫,爬取读者杂志并用reportlab制作成pdf..

crawler.py

#!/usr/bin/env python

#coding=utf-8

"""

    Author:         Anemone

    Filename:       getmain.py

    Last modified:  2015-02-19 16:47

    E-mail:         anemone@82flex.com

"""

import urllib2

from bs4 import BeautifulSoup

import re

import sys

reload(sys)

sys.setdefaultencoding('utf-8')

def getEachArticle(url):

#    response = urllib2.urlopen('http://www.52duzhe.com/2015_01/duzh20150104.html')

    response = urllib2.urlopen(url)

    html = response.read()

    soup = BeautifulSoup(html)#.decode("utf-8").encode("gbk"))

    #for i in soup.find_all('div'):

    #    print i,1

    title=soup.find("h1").string

    writer=soup.find(id="pub_date").string.strip()

    _from=soup.find(id="media_name").string.strip()

    text=soup.get_text()#.encode("utf-8")

    main=re.split("BAIDU_CLB.*;",text)

    result={"title":title,"writer":writer,"from":_from,"context":main[1]}

    return result

    #new=open("new.txt","w")

    #new.write(result["title"]+"\n\n")

    #new.write(result["writer"]+"  "+result["from"])

    #new.write(result["context"])

    #new.close()

def getCatalog(issue):

    url="http://www.52duzhe.com/"+issue[:4]+"_"+issue[-2:]+"/"

    firstUrl=url+"duzh"+issue+"01.html"

    firstUrl=url+"index.html"

    duzhe=dict()

    response = urllib2.urlopen(firstUrl)

    html = response.read()

    soup=BeautifulSoup(html)

    firstUrl=url+soup.table.a.get("href")

    response = urllib2.urlopen(firstUrl)

    html = response.read()

    soup = BeautifulSoup(html)

    all=soup.find_all("h2")

    for i in all:

        print i.string

        duzhe[i.string]=list()

        for link in i.parent.find_all("a"):

            href=url+link.get("href")

            print href

            while 1:

                try:

                    article=getEachArticle(href)

                    break

                except:

                    continue

            duzhe[i.string].append(article)

    return duzhe

def readDuZhe(duzhe):

    for eachColumn in duzhe:

        for eachArticle in duzhe[eachColumn]:

            print eachArticle["title"]

if __name__ == '__main__':

#    issue=raw_input("issue(201501):")

    readDuZhe(getCatalog("201424"))

getpdf.py

#!/usr/bin/env python

#coding=utf-8

"""

    Author:         Anemone

    Filename:       writetopdf.py

    Last modified:  2015-02-20 19:19

    E-mail:         anemone@82flex.com

"""

#coding=utf-8

import reportlab.rl_config

from reportlab.pdfbase import pdfmetrics

from reportlab.pdfbase.ttfonts import TTFont

from reportlab.lib import fonts

import copy

from reportlab.platypus import Paragraph, SimpleDocTemplate,flowables

from reportlab.lib.styles import getSampleStyleSheet

import crawler

def writePDF(issue,duzhe):

    reportlab.rl_config.warnOnMissingFontGlyphs = 0

    pdfmetrics.registerFont(TTFont('song',"simsun.ttc"))

    pdfmetrics.registerFont(TTFont('hei',"msyh.ttc"))

    fonts.addMapping('song', 0, 0, 'song')

    fonts.addMapping('song', 0, 1, 'song')

    fonts.addMapping('song', 1, 0, 'hei')

    fonts.addMapping('song', 1, 1, 'hei')

    stylesheet=getSampleStyleSheet()

    normalStyle = copy.deepcopy(stylesheet['Normal'])

    normalStyle.fontName ='song'

    normalStyle.fontSize = 11

    normalStyle.leading = 11

    normalStyle.firstLineIndent = 20

    titleStyle = copy.deepcopy(stylesheet['Normal'])

    titleStyle.fontName ='song'

    titleStyle.fontSize = 15

    titleStyle.leading = 20

    firstTitleStyle = copy.deepcopy(stylesheet['Normal'])

    firstTitleStyle.fontName ='song'

    firstTitleStyle.fontSize = 20

    firstTitleStyle.leading = 20

    firstTitleStyle.firstLineIndent = 50

    smallStyle = copy.deepcopy(stylesheet['Normal'])

    smallStyle.fontName ='song'

    smallStyle.fontSize = 8

    smallStyle.leading = 8

    story = []

    story.append(Paragraph("<b>读者{0}期</b>".format(issue), firstTitleStyle))

    for eachColumn in duzhe:

        story.append(Paragraph('__'*28, titleStyle))

        story.append(Paragraph('<b>{0}</b>'.format(eachColumn), titleStyle))

        for eachArticle in duzhe[eachColumn]:

            story.append(Paragraph(eachArticle["title"],normalStyle))

    story.append(flowables.PageBreak())

    for eachColumn in duzhe:

        for eachArticle in duzhe[eachColumn]:

            story.append(Paragraph("<b>{0}</b>".format(eachArticle["title"]),titleStyle))

            story.append(Paragraph(" {0}  {1}".format(eachArticle["writer"],eachArticle["from"]),smallStyle))

            para=eachArticle["context"].split("　　")

            for eachPara in para:

                story.append(Paragraph(eachPara,normalStyle))

            story.append(flowables.PageBreak())

    #story.append(Paragraph("context",normalStyle))

    doc = SimpleDocTemplate("duzhe"+issue+".pdf")

    print "Writing PDF..."

    doc.build(story)

def main(issue):

    duzhe=crawler.getCatalog(issue)

    writePDF(issue,duzhe)

if __name__ == '__main__':

    issue=raw_input("Enter issue(201501):")

    main(issue)

以上就是本文的全部内容了，希望大家能够喜欢。