爬取电影天堂上最新电影的下载链接的源码

爬取电影天堂上最新电影的下载链接的源码

import requests, sqlite3, time
from os.path import exists
from os import remove,system
from bs4 import BeautifulSoup
from time import strftime
from threading import Thread
from datetime import datetime

def getmsg(url):
    movies = []
    res = requests.get(url)
    res.encoding='gbk'
    soup = BeautifulSoup(res.text, 'html.parser')
    movie_list = soup.find('div', class_='co_content8').findAll('table', class_='tbspan')
    for movie in movie_list:
        movie_time = movie.find('font', color='#8F8C89').get_text()[3:22]
        movie = movie.findAll('a')  # 有两个a标签，一定要用findAll，用find只会找到第一个a标签
        # print(movie)
        movie_name = movie[1].get_text()
        movie_url = "https://www.dytt8.net" + movie[1]['href']
        movies.append([movie_time, movie_name, movie_url])
        # print('{:<20s}{:<40s}{:<60s}'.format(movie_time, movie_name, movie_url))
    return movies

def save_db(movie_time,movie_name,movie_url):
    dbname = '电影天堂_' + strftime('%y-%m-%d', time.localtime()) + '.sqlite'
    conn =sqlite3.connect(dbname)
    cursor = conn.cursor()
    cursor.execute("insert into dytt_movies values('%s','%s','%s')"%(movie_time,movie_name,movie_url))
    conn.commit()
    cursor.close()
    conn.close()

def down_link_save(movie_time, movie_name, movie_url):
    try:
        down_link_res=requests.get(movie_url)
        down_link_res.encoding='gbk'
        down_link_soup = BeautifulSoup(down_link_res.text,'html.parser')
        down_link=down_link_soup.find('div',class_='co_content8').find('td',style="WORD-WRAP: break-word").find('a')['href']
        movie_url=down_link
        # print('{:<20s}{:<40s}{:<60s}'.format(movie_time, movie_name, movie_url))
        save_db(movie_time,movie_name,movie_url)
    except:
        print("{}获取链接失败".format(movie_name))

def show_results(dbname):
    filename = '电影天堂_'+strftime('%y-%m-%d',time.localtime())+'.txt'
    if exists(filename):remove(filename)
    conn = sqlite3.connect(dbname)
    cursor =conn.cursor()
    cursor.execute("select * from dytt_movies order by movie_time desc ")
    results = cursor.fetchall()
    print("总共找到{}部电影!".format(len(results)))
    cursor.close()
    conn.close()
    i = 0
    for movie in results:
        i =i + 1
        with open(filename,'a',encoding='utf-8') as f:
            f.write("{:<5s}{:<30s}{:<40s}{:<40s}
".format(str(i),movie[0],movie[1],movie[2]))

    system(filename)

# 主函数，函数入口
if __name__ == '__main__':
    start = datetime.now()
    movies = []
    dbname = '电影天堂_' + strftime('%y-%m-%d', time.localtime()) + '.sqlite'
    if exists(dbname): remove(dbname)
    conn = sqlite3.connect(dbname)
    cursor = conn.cursor()
    cursor.execute("create table dytt_movies(movie_time varchar(40),movie_name varchar(40),movie_url varchar(60))")
    conn.commit()
    cursor.close()
    conn.close()
    for i in range(1, 21):
        url = 'https://www.dytt8.net/html/gndy/china/list_4_{}.html'.format(i)
        response = requests.get(url)
        response.encoding = 'gbk'
        print('collecting message from {:s}'.format(url))
        movies = getmsg(url)
        # for item in movies:
        #     print(item)
        # 多线程的好处，是一个线程执行不下去了，不影响其他线程。如果只有一个线程来抓一页的这25条，如果中间出错了，就执行不下去了
        threads=[]
        for item in movies:
            t = Thread(target=down_link_save,args=(item[0],item[1],item[2]))
            threads.append(t)
        for t in threads:
            t.start()
        for t in threads:
            t.join()
    run_time = (datetime.now()-start).total_seconds()
    print("共用时{}秒".format(run_time,end='	'))
    show_results(dbname)