本篇仅作为学习交流,不做商业用途
#!/usr/bin/python
# -*- coding: UTF-8 -*-
# Author: RuiMing Lin
# DateTime: 2021/01/24 23:49
# Description: 使用正则表达式爬取猫眼电影网
import json
import requests
from requests.exceptions import RequestException
import re
import time
# 根据url爬取页面
def get_one_page(url):
try:
headers = {
'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.162 Safari/537.36'
}
response = requests.get(url, headers=headers)
if response.status_code == 200: # 访问成功就返回响应内容
return response.text
return None
except RequestException:
return None
# 使用正则表达式解析页面
def parse_one_page(html):
pattern = re.compile('<dd>.*?board-index.*?>(\d+)</i>.*?data-src="(.*?)".*?name"><a'
+ '.*?>(.*?)</a>.*?star">(.*?)</p>.*?releasetime">(.*?)</p>'
+ '.*?integer">(.*?)</i>.*?fraction">(.*?)</i>.*?</dd>', re.S)
items = re.findall(pattern, html)
for item in items:
yield {
'index': item[0],
'image': item[1],
'title': item[2],
'actor': item[3].strip()[3:],
'time': item[4].strip()[5:],
'score': item[5] + item[6]
} # 生成迭代器
# 将结果写入txt文件
def write_to_file(content):
with open('files/movies.txt', 'a', encoding='utf-8') as f:
f.write(json.dumps(content, ensure_ascii=False) + '\n')
# main函数
def main(offset):
url = 'http://maoyan.com/board/4?offset=' + str(offset)
html = get_one_page(url)
for item in parse_one_page(html):
print(item)
write_to_file(item)
if __name__ == '__main__':
for i in range(10):
main(offset=i * 10)
time.sleep(1)