import requests
from requests.exceptions import RequestException # 处理请求异常
import re
import pymysql
import json
from multiprocessing import Pool

# 获取一页的数据
def get_one_page(url):# requests会产生异常headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36',}try:response = requests.get(url, headers=headers)if response.status_code == 200:  # 状态码是200表示成功return response.textelse:return Noneexcept RequestException:return None

# 解析网页内容
def parse_one_page(html):pattern = re.compile('<dd>.*?board-index.*?>(\d+)</i>.*?data-src="(.*?)".*?class="name"><a.*?>(.*?)</a>.*?star">(.*?)</p>.*?releasetime">(.*?)</p>.*?integer">(.*?)</i>.*?fraction">(.*?)</i>.*?</dd>',re.S)  # re.S可以匹配任意字符包括换行items = re.findall(pattern, html)  # 将括号中的内容提取出来for item in items:yield {  # 构造一个生成器'index': item[0].strip(),'title': item[2].strip(),'actor': item[3].strip()[3:],'score': ''.join([item[5].strip(), item[6].strip()]),'pub_time': item[4].strip()[5:],'img_url': item[1].strip(),}

# 连接数据库，首先要在本地创建好数据库
def commit_to_sql(dic):conn = pymysql.connect(host='localhost', port=3306, user='mydb', passwd='123456', db='maoyantop100',charset='utf8')cursor = conn.cursor(cursor=pymysql.cursors.DictCursor)  # 设置游标的数据类型为字典sql = '''insert into movies_top_100(mid,title,actor,score,pub_time,img_url) values("%s","%s","%s","%s","%s","%s")''' % (dic['index'], dic['title'], dic['actor'], dic['score'], dic['pub_time'], dic['img_url'],)cursor.execute(sql)  # 执行sql语句并返回受影响的行数# # 提交
    conn.commit()# 关闭游标
    cursor.close()# 关闭连接conn.close()

def main(url):html = get_one_page(url)for item in parse_one_page(html):print(item)commit_to_sql(item)if __name__ == '__main__':urls = ['http://maoyan.com/board/4?offset={}'.format(i) for i in range(0, 100, 10)]# 使用多进程pool = Pool()pool.map(main, urls)

# -*- coding: utf-8 -*-
# @Author  : FELIX
# @Date    : 2018/4/4 9:29import requests
from requests.exceptions import RequestException
import re
import pymysql
import json
from multiprocessing import Pool# 连接数据库
def commit_to_sql(dic):conn = pymysql.connect(host='localhost', port=3306, user='wang', passwd='123456', db='maoyantop100',charset='utf8')cursor = conn.cursor(cursor=pymysql.cursors.DictCursor)  # 设置游标的数据类型为字典sql = '''insert into movies_top_100(mid,title,actor,score,pub_time,img_url) values("%s","%s","%s","%s","%s","%s")''' % (dic['index'], dic['title'], dic['actor'], dic['score'], dic['pub_time'], dic['img_url'],)cursor.execute(sql)  # 执行sql语句并返回受影响的行数# # 提交
    conn.commit()# 关闭游标
    cursor.close()# 关闭连接
    conn.close()# 获取一页的数据
def get_one_page(url):# requests会产生异常headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36',}try:response = requests.get(url, headers=headers)if response.status_code == 200:  # 状态码是200表示成功return response.textelse:return Noneexcept RequestException:return None# 解析网页内容
def parse_one_page(html):pattern = re.compile('<dd>.*?board-index.*?>(\d+)</i>.*?data-src="(.*?)".*?class="name"><a.*?>(.*?)</a>.*?star">(.*?)</p>.*?releasetime">(.*?)</p>.*?integer">(.*?)</i>.*?fraction">(.*?)</i>.*?</dd>',re.S)  # re.S可以匹配任意字符包括换行items = re.findall(pattern, html)  # 将括号中的内容提取出来for item in items:yield {  # 构造一个生成器'index': item[0].strip(),'title': item[2].strip(),'actor': item[3].strip()[3:],'score': ''.join([item[5].strip(), item[6].strip()]),'pub_time': item[4].strip()[5:],'img_url': item[1].strip(),}# print(items)def write_to_file(content):with open('result.txt', 'a', encoding='utf8')as f:f.write(json.dumps(content, ensure_ascii=False) + '\n')ii = 0def main(url):html = get_one_page(url)for item in parse_one_page(html):global iiprint(ii, item)ii = ii + 1commit_to_sql(item)write_to_file(item)# print(html)if __name__ == '__main__':urls = ['http://maoyan.com/board/4?offset={}'.format(i) for i in range(0, 100, 10)]# 使用多进程pool = Pool()pool.map(main, urls)