python爬取豆瓣电影top250数据存入数据库

# -*- coding:utf-8 -*-
"""获取时光影评电影"""
import requests
from bs4 import BeautifulSoup
from datetime import datetime,timedelta
import pymysql

#用来操作数据库的类
class MySqlCommand(object):
    #类的初始化
    def __init__(self):
        self.host = "127.0.0.1"
        self.port = 3306 #端口号
        self.user = "root" #用户名
        self.password = "" #密码
        self.db = "" #库
        self.table = "" #表

    #连接数据库
    def connectMysql(self):
        try:
            self.conn = pymysql.connect(host=self.host,port=self.port,user=self.user,
                                        passwd=self.password,db=self.db,charset='utf8')
            self.cursor = self.conn.cursor()
            return self.cursor,self.conn
        except:
            print('connect mysql error.')


#获取指定开始排行的电影url
def get_url(root_url,start):
    return root_url+"?start="+str(start)+"&"

def get_review(page_url):

    """获取电影相关的信息"""

    cursor,db = MySqlCommand().connectMysql()

    #creat_table = """CREATTE TABLE douban(id INT (11) NOT NULL AUTO_INCREMENT PRIMARY KEY,rank VARCHAR(128),title VARCHAR(128),score VARCHAR(128),descs VARCHAR(128))"""
    creat_table =("CREATE TABLE douban("
           "rank varchar(255),"
           "title varchar(255),"
           "score varchar(255),"
           "descs varchar(255))")

    cursor.execute("DROP TABLE IF EXISTS douban")
    cursor.execute(creat_table)
    movies_list = []
    reponse = requests.get(page_url)
    soup =BeautifulSoup(reponse.text,'lxml')
    soup = soup.find("ol","grid_view")
    dict ={}
    for tag_li in soup.find_all("li"):
        dict = {}
        dict['rank'] = tag_li.find("em").string
        dict['title'] = tag_li.find_all("span","title")[0].string
        dict['score'] = tag_li.find("span","rating_num").string
        if tag_li.find("span","inq"):
            dict['desc'] =tag_li.find("span","inq").string
        else:
            dict['desc'] = '无评词'
        cursor.execute("INSERT INTO douban(rank,title,score,descs)\
          VALUES(%s,%s,%s,%s)",\
        (dict['rank'],dict['title'],dict['score'],dict['desc']))

    db.commit()
    db.close()

        #movies_list.append(dict)
    #return movies_list

if __name__ == '__main__':

    root_url = "https://movie.douban.com/top250"
    start =0
    movies_list =get_review(get_url(root_url,start))
    # for movies in movies_list:
    #     print(movies)

结果：