Python小爬虫——抓取豆瓣电影Top250数据

python抓取豆瓣电影Top250数据

1.豆瓣地址:https://movie.douban.com/top250?start=25&filter=

2.主要流程是抓取该网址下的Top250的数据,存入本地的txt文件中,并将数据持久化写入数据库中

环境准备:

1.本地安装mysql数据库,具体下载以及安装参照:https://blog.csdn.net/chic_data/article/details/72286329

2.安装好数据后创建database和table,并创建字段

如:我安装的版本是mysqlV8.0

CREATE TABLE doubanTop250(

    ID int PRIMARY KEY AUTO_INCREMENT,

    rankey int,

    name varchar(50),

    alias varchar(100),

    director varchar(50),

    showYear varchar(50),

    makeCountry varchar(50),

    movieType varchar(50),

    movieScore float,

    scoreNum int,

    shortFilm varchar(255)

)ENGINE=InnoDB DEFAULT CHARSET=utf8;

最后我们直接来看代码:

　　

 from urllib import request

 import re

 import pymysql

 class MovieTop(object):

     def __init__(self):

         self.start = 0

         self.param = '&filter'

         self.headers = {"User-Agent" : "Mozilla/5.0 (Windows NT 10.0; WOW64) "

                                        "AppleWebKit/537.36 (KHTML, like Gecko) "

                                        "Chrome/65.0.3325.146 Safari/537.36"}

         self.movieList = []

         self.filePath = './DoubanTop250.txt'

     def get_page(self):

         try:

             url = 'https://movie.douban.com/top250?start=' + str(self.start) + '&filter='

             myRequest = request.Request(url, headers=self.headers)

             response = request.urlopen(myRequest)

             page = response.read().decode('utf-8')

             print('正在获取第' + str((self.start+25)//25) + '页数据...')

             self.start += 25

             return page

         except request.URLError as e:

             if hasattr(e, 'reason'):

                 print('获取失败，失败原因：', e.reason)

     def get_page_info(self):

         patern = re.compile(u'<div.*?class="item">.*?'

                             + u'<div.*?class="pic">.*?'

                             + u'<em.*?class="">(.*?)</em>.*?'

                             + u'<div.*?class="info">.*?'

                             + u'<span.*?class="title">(.*?)</span>.*?'

                             + u'<span.*?class="other">(.*?)</span>.*?'

                             + u'<div.*?class="bd">.*?'

                             + u'<p.*?class="">.*?'

                             + u'导演:\s(.*?)\s.*?<br>'

                             + u'(.*?)&nbsp;/&nbsp;'

                             + u'(.*?)&nbsp;/&nbsp;(.*?)</p>.*?'

                             + u'<div.*?class="star">.*?'

                             + u'<span.*?class="rating_num".*?property="v:average">'

                             + u'(.*?)</span>.*?'

                             + u'<span>(.*?)人评价</span>.*?'

                             + u'<span.*?class="inq">(.*?)</span>'

                             , re.S)

         while self.start <= 225:

             page = self.get_page()

             movies = re.findall(patern, page)

             for movie in movies:

                 self.movieList.append([movie[0],

                                        movie[1],

                                        movie[2].lstrip('&nbsp;/&nbsp;'),

                                        movie[3],

                                        movie[4].lstrip(),

                                        movie[5],

                                        movie[6].rstrip(),

                                        movie[7],

                                        movie[8],

                                        movie[9]])

     def write_page(self):

         print('开始写入文件...')

         file = open(self.filePath, 'w', encoding='utf-8')

         try:

             for movie in self.movieList:

                 file.write('电影排名：' + movie[0] + '\n')

                 file.write('电影名称：' + movie[1] + '\n')

                 file.write('电影别名：' + movie[2] + '\n')

                 file.write('导演：' + movie[3] + '\n')

                 file.write('上映年份：' + movie[4] + '\n')

                 file.write('制作国家/地区：' + movie[5] + '\n')

                 file.write('电影类别：' + movie[6] + '\n')

                 file.write('评分：' + movie[7] + '\n')

                 file.write('参评人数：' + movie[8] + '\n')

                 file.write('简短影评：' + movie[9] + '\n')

                 file.write('\n')

             print('成功写入文件...')

         except Exception as e:

             print(e)

         finally:

             file.close()

     def upload(self):

         db = pymysql.connect("localhost", "root", "root", "PythonTest", charset='utf8')

         cursor = db.cursor()

         insertStr = "INSERT INTO doubanTop250(rankey, name, alias, director," \

                     "showYear, makeCountry, movieType, movieScore, scoreNum, shortFilm)" \

                     "VALUES (%d, '%s', '%s', '%s', '%s', '%s', '%s', %f, %d, '%s')"

         try:

             for movie in self.movieList:

                 insertSQL = insertStr % (int(movie[0]), str(movie[1]), str(movie[2]), str(movie[3]),

                                          str(movie[4]), str(movie[5]), str(movie[6]), float(movie[7]),

                                          int(movie[8]), str(movie[9]))

                 cursor.execute(insertSQL)

             db.commit()

             print('成功上传至数据库...')

         except Exception as e:

             print(e)

             db.rollback()

         finally:

             db.close()

 if __name__ == '__main__':

     mt = MovieTop()

     mt.get_page_info()

     mt.write_page()

     mt.upload()

执行结果:

参照原文地址:https://www.cnblogs.com/AlvinZH/p/8576841.html#_label0

Python小爬虫——抓取豆瓣电影Top250数据的相关教程结束。