python爬取安居客二手房网站数据(实例讲解)(2)

# 进行下一页的爬取
result_next_page = soup.find_all('a', {'class': 'aNxt'})
if len(result_next_page) != 0:
  print(result_next_page[0].attrs['href'])
else:
  print('没有下一页了')

import requests
from bs4 import BeautifulSoup

# 网页的请求头
header = {
  'user-agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36'
}

def get_page(url):
  response = requests.get(url, headers=header)

  # 通过BeautifulSoup进行解析出每个房源详细列表并进行打印
  soup = BeautifulSoup(response.text, 'html.parser')
  result_li = soup.find_all('li', {'class': 'list-item'})

  # 进行下一页的爬取
  result_next_page = soup.find_all('a', {'class': 'aNxt'})
  if len(result_next_page) != 0:
    # 函数进行递归
    get_page(result_next_page[0].attrs['href'])
  else:
    print('没有下一页了')

  # 进行循环遍历其中的房源详细列表
  for i in result_li:
    # 由于BeautifulSoup传入的必须为字符串，所以进行转换
    page_url = str(i)
    soup = BeautifulSoup(page_url, 'html.parser')
    # 由于通过class解析的为一个列表，所以只需要第一个参数
    result_href = soup.find_all('a', {'class': 'houseListTitle'})[0]
    # 先不做分析，等一会进行详细页面函数完成后进行调用
    print(result_href.attrs['href'])


if __name__ == '__main__':
  # url链接
  url = 'https://zhengzhou.anjuke.com/sale/'
  # 页面爬取函数调用
  get_page(url)

import requests
from bs4 import BeautifulSoup

# 网页的请求头
header = {
  'user-agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36'
}

def get_page(url):
  response = requests.get(url, headers=header)

  # 通过BeautifulSoup进行解析出每个房源详细列表并进行打印
  soup_idex = BeautifulSoup(response.text, 'html.parser')
  result_li = soup_idex.find_all('li', {'class': 'list-item'})

  # 进行循环遍历其中的房源详细列表
  for i in result_li:
    # 由于BeautifulSoup传入的必须为字符串，所以进行转换
    page_url = str(i)
    soup = BeautifulSoup(page_url, 'html.parser')
    # 由于通过class解析的为一个列表，所以只需要第一个参数
    result_href = soup.find_all('a', {'class': 'houseListTitle'})[0]
    # 详细页面的函数调用
    get_page_detail(result_href.attrs['href'])


  # 进行下一页的爬取
  result_next_page = soup_idex.find_all('a', {'class': 'aNxt'})
  if len(result_next_page) != 0:
    # 函数进行递归
    get_page(result_next_page[0].attrs['href'])
  else:
    print('没有下一页了')

# 进行字符串中空格，换行，tab键的替换及删除字符串两边的空格删除
def my_strip(s):
  return str(s).replace(" ", "").replace("\n", "").replace("\t", "").strip()
# 由于频繁进行BeautifulSoup的使用，封装一下，很鸡肋
def my_Beautifulsoup(response):
  return BeautifulSoup(str(response), 'html.parser')



# 详细页面的爬取
def get_page_detail(url):
  response = requests.get(url, headers=header)
  if response.status_code == 200:
    soup = BeautifulSoup(response.text, 'html.parser')
    # 标题什么的一大堆，哈哈
    result_title = soup.find_all('h3', {'class': 'long-title'})[0]
    result_price = soup.find_all('span', {'class': 'light info-tag'})[0]
    result_house_1 = soup.find_all('div', {'class': 'first-col detail-col'})
    result_house_2 = soup.find_all('div', {'class': 'second-col detail-col'})
    result_house_3 = soup.find_all('div', {'class': 'third-col detail-col'})
    soup_1 = my_Beautifulsoup(result_house_1)
    soup_2 = my_Beautifulsoup(result_house_2)
    soup_3 = my_Beautifulsoup(result_house_3)
    result_house_tar_1 = soup_1.find_all('dd')
    result_house_tar_2 = soup_2.find_all('dd')
    result_house_tar_3 = soup_3.find_all('dd')
    '''
    文博公寓，省实验中学，首付只需70万，大三房，诚心卖，价可谈 270万
    宇泰文博公寓 金水－花园路－文博东路4号 2010年 普通住宅
    3室2厅2卫 140平方米 南北 中层(共32层)
    精装修 19285元/m² 81.00万
    '''
    print(my_strip(result_title.text), my_strip(result_price.text))
    print(my_strip(result_house_tar_1[0].text),
       my_strip(my_Beautifulsoup(result_house_tar_1[1]).find_all('p')[0].text),
       my_strip(result_house_tar_1[2].text), my_strip(result_house_tar_1[3].text))
    print(my_strip(result_house_tar_2[0].text), my_strip(result_house_tar_2[1].text),
       my_strip(result_house_tar_2[2].text), my_strip(result_house_tar_2[3].text))
    print(my_strip(result_house_tar_3[0].text), my_strip(result_house_tar_3[1].text),
       my_strip(result_house_tar_3[2].text))

if __name__ == '__main__':
  # url链接
  url = 'https://zhengzhou.anjuke.com/sale/'
  # 页面爬取函数调用
  get_page(url)