python爬取盘搜的有效链接实现代码

            
import requests
import json
from multiprocessing.dummy import Pool as ThreadPool
from multiprocessing import Queue
import sys
headers = {
  "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36"
}
q1 = Queue()
q2 = Queue()
urls = [] # 存取url列表
# 读取url
def get_urls(query):
  # 遍历50页
  for i in range(1,51):
    # 要爬取的url列表，返回值是json数据，q参数是搜索内容，p参数是页码
    url = "http://106.15.195.249:8011/search_new?&q=%s&p=%d" % (query,i)
    urls.append(url)
# 获取数据
def get_data(url):
  print("开始加载，请等待...")
  # 获取json数据并把json数据转换为字典
  resp = requests.get(url, headers=headers).content.decode("utf-8")
  resp = json.loads(resp)
  # 如果搜素数据为空就抛出异常停止程序
  if resp['list']['data'] == []:
    raise Exception
  # 遍历每一页数据的长度
  for num in range(len(resp['list']['data'])):
    # 获取百度云链接
    link = resp['list']['data'][num]['link']
    # 获取标题
    title = resp['list']['data'][num]['title']
    # 访问百度云链接，判断如果页面源代码中有“失效时间：”这段话的话就表明链接有效，链接无效的页面是没有这段话的
    link_content = requests.get(link, headers=headers).content.decode("utf-8")
    if "失效时间：" in link_content:
      # 把标题放进队列1
      q1.put(title)
      # 把链接放进队列2
      q2.put(link)
      # 写入csv文件
      with open("wangpanziyuan.csv", "a+", encoding="utf-8") as file:
        file.write(q1.get()+","+q2.get() + "\n")
  print("ok")
if __name__ == '__main__':
  # 括号内填写搜索内容
  get_urls("python")
  # 创建线程池
  pool = ThreadPool(3)
  try:
    results = pool.map(get_data, urls)
  except Exception as e:
    print(e)
  pool.close()
  pool.join()
  print("退出")