爬取微博

说明：大家可以看崔庆才老师的博客或者买他的书。基本框架来自崔庆才老师的书本。

链接：https://github.com/Python3WebSpider/MaoYan/blob/master/spider.py

因为微博的接口可能发生变化，所以要根据实际情况来操作。
本次代码可以更新的日期是：2020年5月17日。

import requests
from urllib.parse import urlencode
from pyquery import PyQuery as pq

base_url = 'https://m.weibo.cn/api/container/getIndex?'
headers = {
    'Host': 'm.weibo.cn',
    'Referer': 'https://m.weibo.cn/u/2830678474',
    'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36',
    'X-Requested-With': 'XMLHttpRequest',
}




def get_page(since_id):
    params = {
        'type': 'uid',
        'value': '2830678474',
        'containerid': '1076032830678474'
    }
    if since_id != 0:
        params['since_id'] = since_id
    url = base_url + urlencode(params)
    try:
        response = requests.get(url, headers=headers)
        if response.status_code == 200:
            return response.json(), page
    except requests.ConnectionError as e:
        print('Error', e.args)


def parse_page(json, page: int):
    if json:
        items = json.get('data').get('cards')
        for index, item in enumerate(items):
            item = item.get('mblog', {})
            weibo = {}
            weibo['id'] = item.get('id')
            weibo['text'] = pq(item.get('text')).text()
            weibo['attitudes'] = item.get('attitudes_count')
            weibo['comments'] = item.get('comments_count')
            weibo['reposts'] = item.get('reposts_count')
            yield weibo


def save_to_file(result):
    with open('weibo.txt', 'a', encoding='utf-8') as f:
        f.write(str(result) + '
')


if __name__ == '__main__':
    max_page = 10
    since_id = 0
    for page in range(1, max_page + 1):
        json = get_page(since_id)
        since_id = json[0].get('data').get('cardlistInfo').get('since_id')
        results = parse_page(*json)
        for result in results:
            print(result)
            save_to_file(result)