豆瓣電影搜尋爬蟲程式,爬蟲小程式,適合初學者
阿新 • • 發佈:2019-02-20
最近在學python,之前用Python寫過簡單的圖片爬取,今天想著用python爬一下豆瓣的電影,就有了下面的程式:
#coding:utf-8 import re import sys import urllib from bs4 import BeautifulSoup def movieSearch(): <span style="white-space:pre"> </span>douBanSearchurl = "http://movie.douban.com/subject_search?search_text=" <span style="white-space:pre"> </span>data = urllib.urlopen(douBanSearchurl+movieName).read() <span style="white-space:pre"> </span>r = re.findall(r'<a class="nbg" href=(.*?) onclick',data) <span style="white-space:pre"> </span>realy_url = re.sub('"','',r[0]) <span style="white-space:pre"> </span>movieData = urllib.urlopen(realy_url).read() <span style="white-space:pre"> </span>soup = BeautifulSoup(movieData) <span style="white-space:pre"> </span>movieSummary = soup.find_all("span",{'property':'v:summary'}) <span style="white-space:pre"> </span>#movieSummaryText = re.findall(r'<span property="v:summary" class="">(\W*.*\W*.*?)</span>',movieData) <span style="white-space:pre"> </span>movie = re.findall(r'name="title" value="(.*?)"',movieData) <span style="white-space:pre"> </span>people = re.findall(r'name="desc" value="(.*?)"',movieData) <span style="white-space:pre"> </span>imdb = re.findall(r'</span> <a href="(.*?)" target=',movieData) <span style="white-space:pre"> </span>Time = re.findall(r'<span property="v:runtime" content="109">(.*?)</span>',movieData) <span style="white-space:pre"> </span>print u"IMDB電影網連結" <span style="white-space:pre"> </span>print imdb[0] <span style="white-space:pre"> </span>print u"豆瓣電影連結" <span style="white-space:pre"> </span>print realy_url <span style="white-space:pre"> </span>print '*'*80 <span style="white-space:pre"> </span>print movie[0].decode('utf-8').encode('gbk') <span style="white-space:pre"> </span>print people[0].decode('utf-8').encode('gbk') <span style="white-space:pre"> </span>print u"電影簡介" <span style="white-space:pre"> </span>print '*'*80 <span style="white-space:pre"> </span>print movieSummary[0].encode('gbk') if __name__=='__main__': <span style="white-space:pre"> </span>while(1): <span style="white-space:pre"> </span>arg = raw_input("請選擇功能:\n1:電影搜尋\n2:退出\n".decode('utf-8').encode('gb2312')) <span style="white-space:pre"> </span>if arg=='1' : <span style="white-space:pre"> </span>movieName=raw_input("請輸入電影名: ".decode('utf-8').encode('gb2312')).strip() <span style="white-space:pre"> </span>print u"開始搜尋" <span style="white-space:pre"> </span>movieSearch() <span style="white-space:pre"> </span>else: <span style="white-space:pre"> </span>print u"退出程式" <span style="white-space:pre"> </span>break;<span style="white-space:pre"> </span>
在除錯過程中,遇到了兩個頭疼的問題:
1、beautifulSoup編碼與CMD編碼不匹配,beautifulSoup得到的網頁資訊均為Unicode,但是cmd不支援Unicode只有gbk,中文顯示就成了很大問題了,所以就用了最笨的辦法,通過轉碼來實現,目前還沒找到更好的辦法,如果有請指點下。
2、在寫正則表示式時,不知道<br\>如何匹配,特別是對於網頁文字有換行分段的形式,該如何匹配?