自动采集酒店数据并导出到EXCEL

优采云 发布时间: 2020-08-06 19:13

  客户需求

  酒店后端管理系统记录合作酒店的信息. 共有300多页,每页10条数据,主要包括合作酒店的面积,价格,风险指数等信息. 现在,此信息需要分类到EXCEL中. 如果手动复制,则工作量很大且容易出错,因此客户端建议使用采集器来采集数据并将其导出到EXCEL.

  爬行器模拟着陆

  

  列表页面

  

  详细信息页面

  

  详细的设计过程

  首先使用用户名和密码登录,然后打开第一页,然后打开每个记录的详细信息页,然后采集数据. 然后遍历第二页直到最后一页.

  Scrapy

  使用Python的Scrapy框架

  1

  pip install scrapy

  核心源代码

  成功登录后,将自动处理cookie,以便您可以正常访问该页面. 返回的数据格式为html,可通过xpath进行解析. 为了避免对服务器造成压力,请在晚上爬网数据,并在settings.py中设置5S的延迟.

  1

  DOWNLOAD_DELAY = 5

  hotel.py的源代码如下:

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  import scrapy

from scrapy.selector import Selector

from scrapy.http import FormRequest

class HotelSpider(scrapy.Spider):

name = 'hotel'

allowed_domains = ['checkhrs.zzzdex.com']

login_url = 'http://checkhrs.zzzdex.com/piston/login'

url = 'http://checkhrs.zzzdex.com/piston/hotel'

start_urls = ['http://checkhrs.zzzdex.com/piston/hotel']

def login(self, response):

fd = {'username':'usernamexxx', 'password':'passwordxxx'}

yield FormRequest.from_response(response,

formdata = fd,

callback = self.parse_login)

def parse_login(self, response):

if 'usernamexxx' in response.text:

print("login success!")

yield from self.start_hotel_list()

else:

print("login fail!")

def start_requests(self):

yield scrapy.Request(self.login_url,

meta = {

},

encoding = 'utf8',

headers = {

'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',

'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36'

},

dont_filter = True,

callback = self.login)

def start_hotel_list(self):

yield scrapy.Request(self.url,

meta = {

},

encoding = 'utf8',

headers = {

'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',

'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36'

},

dont_filter = True)

def parse(self, response):

print("parse")

selector = Selector(response)

select_list = selector.xpath('//table//tbody//tr')

for sel in select_list:

address = sel.xpath('.//td[3]/text()').extract_first()

next_url = sel.xpath('.//td//a[text()="编辑"]/@href').extract_first()

next_url = response.urljoin(next_url)

print(next_url)

yield scrapy.Request(next_url,

meta = {

'address': address

},

encoding = 'utf8',

headers = {

'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',

'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36'

},

dont_filter = True,

callback = self.parseDetail)

totalStr = selector.xpath('//ul[@class="pagination"]//li[last()-1]//text()').extract_first();

print(totalStr)

pageStr = selector.xpath('//ul[@class="pagination"]//li[@class="active"]//text()').extract_first();

print(pageStr)

total = int(totalStr)

print(total)

page = int(pageStr)

print(page)

if page >= total:

print("last page")

else:

next_page = self.url + "?page=" + str(page + 1)

print("continue next page: " + next_page)

yield scrapy.Request(next_page,

meta = {

},

encoding = 'utf8',

headers = {

'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',

'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36'

},

dont_filter = True)

def parseDetail(self, response):

address = response.meta['address']

print("parseDetail address is " + address)

addresses = address.split('/')

print(addresses)

country = ""

province = ""

city = ""

address_len = len(addresses)

if address_len > 0:

country = addresses[0].strip()

if address_len > 1:

province = addresses[1].strip()

if address_len > 2:

city = addresses[2].strip()

selector = Selector(response)

hotelId = selector.xpath('//input[@id="id"]/@value').extract_first()

group_list = selector.xpath('//form//div[@class="form-group js_group"]')

hotelName = group_list[1].xpath('.//input[@id="hotel_name"]/@value').extract_first()

select_list = selector.xpath('//form//div[contains(@class,"company_container")]')

for sel in select_list:

company_list = sel.xpath('.//div[@class="panel-body"]//div[@class="form-group"]')

#公司

companyName = company_list[0].xpath('.//input[@id="company"]/@value').extract_first()

#单早

singlePrice = company_list[1].xpath('.//input/@value')[0].extract()

#双早

doublePrice = company_list[1].xpath('.//input/@value')[1].extract()

#风险指数

risk = company_list[2].xpath('.//input/@value').extract_first()

#备注

remark = company_list[3].xpath('.//input/@value').extract_first()

yield {

'ID': hotelId,

'国家': country,

'省份': province,

'城市': city,

'酒店名': hotelName,

'公司': companyName,

'单早': singlePrice,

'双早': doublePrice,

'风险指数': risk,

'备注': remark

}

  运行

  1

  scrapy crawl hotel -o ./outputs/hotel.csv

  大约在第二天中午,从晚上10点开始爬升,所有数据都被采集,没有错误,最终输出为CSV,按ID排序,然后转换为EXCEL.

  

  摘要

  在日常工作中使用履带技术可以提高工作效率并避免重复的任务.

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