小编给大家分享一下def中如何使用协程方式爬取小红书数据，希望大家阅读完这篇文章之后都有所收获，下面让我们一起去探讨吧！
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from gevent import monkey
# 猴子补丁
monkey.patch_all()
from gevent.pool import Pool
from queue import Queue
import requests
import json
from lxml import etree
class RedBookSpider():
"""小红书爬虫"""
def __init__(self, pages):
"""初始化"""
self.url = 'https://www.xiaohongshu.com/web_api/sns/v2/trending/page/brand?page={}&page_size=20'
self.headers = {
"User-Agent": "Mozilla/5.0 (Linux; Android 5.0; SM-G900P Build/LRX21T) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.131 Mobile Safari/537.36"
}
self.url_queue = Queue()
self.pool = Pool(5)
self.pages = pages
pass
def get_url(self):
"""获取url"""
for page in range(1, self.pages):
url = self.url.format(page)
self.url_queue.put(url)
def save_data(self, items):
"""数据保存"""
with open('./redbook.txt', 'a', encoding='utf-8') as f:
f.write(str(items) + '\n')
def deal_detail(self, detail_url, items, data):
"""详情页内容提取"""
resp = requests.get(url=detail_url, headers=self.headers)
eroot = etree.HTML(resp.text)
items['fans'] = eroot.xpath('//div[@data-v-64bff0ce]/div[@class="extra"]/text()')
items['articles'] = eroot.xpath('//div/span[@class="stats"]/text()')
items['introduce'] = eroot.xpath('//div[@class="desc"]/div[@class="content"]/text()')
items['detail_url'] = detail_url
items['image'] = data['page_info']['banner']
print(items)
self.save_data(items)
def deal_response(self, resp):
"""数据提取"""
dict_data = json.loads(resp.text)
dict_data = dict_data['data']
for data in dict_data:
items = {}
items['name'] = data['page_info']['name']
detail_url = 'https://www.xiaohongshu.com/page/brands/' + data['page_id']
self.deal_detail(detail_url, items, data)
def execute_task(self):
"""处理响应"""
url = self.url_queue.get()
resp = requests.get(url=url, headers=self.headers)
# print(resp.text)
self.deal_response(resp)
self.url_queue.task_done()
def execute_task_finished(self, result):
"""任务回调"""
self.pool.apply_async(self.execute_task, callback=self.execute_task_finished)
def run(self):
"""启动程序"""
self.get_url()
for i in range(3):
self.pool.apply_async(self.execute_task, callback=self.execute_task_finished)
self.url_queue.join()
pass
if __name__ == '__main__':
user = RedBookSpider(4)
# 需要爬取几页数据 就改为多少
user.run()看完了这篇文章，相信你对“def中如何使用协程方式爬取小红书数据”有了一定的了解，如果想了解更多相关知识，欢迎关注创新互联行业资讯频道，感谢各位的阅读！
