python爬取猫眼top100电影简介并存储在数据库中

代码如下：

 

from urllib import request
import pymysql
import re

url = 'http://maoyan.com/board/4'


def get_content(url):
    with request.urlopen(url) as f:
        content = f.read().decode('utf-8')
        return content

def get_pattern(url):
    content = get_content(url)
    pattern = r'
(.*)
' \
              r'\s*
\s*(.*)\s*
' \
              r'\s*
(.*)
'
    return re.findall(pattern, content)


def create_url(url):

    url_li = []
    for i in range(10):
        new_url = url+'?offset=%d' %(i*10)
        i += 1
        url_li.append(new_url)
    return url_li


url_li = create_url(url)


for i in url_li:


    conn = pymysql.connect(host='localhost',user='root',
                           passwd='redhat',db='movie',
                           charset='utf8')

    cur = conn.cursor()

    try :
        # 执行的插入语句；
        insert_sqil = 'insert into ifm values(%s,%s,%s);'

        cur.executemany(insert_sqil,get_pattern(i))


    except Exception as e:

        print ("sql execute failed")

    else:
        print ('sql execute success')

    # 4.提交sql语句，作用于数据库；
    conn.commit()

    # 5.先关闭游标
    cur.close()

    # 6.关闭数据库连接
    conn.close()

实验结果如下：

 

********         success！    **********