1.dankespider
import scrapy from ..items import ZufangItem headers = { 'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.131 Safari/537.36' } class Danke_Spider(scrapy.Spider): name = 'danke' def start_requests(self): url = 'https://www.danke.com/room/sh' yield scrapy.Request(url=url,headers=headers) def parse(self, response): house = response.xpath('//div[@class="r_lbx_cena"]/a/text()').getall() money = response.xpath('//div[@class="r_lbx_moneya"]/span/text()').getall() status = response.xpath('//div[@class="r_lbx_cenb"]').xpath('string(.)').getall() print(house,money,status) print(len(house),len(money),len(status)) print(type(house),type(money),type(status)) for i in range(len(house)): info = ZufangItem() #清洗数据 house[i] = house[i].replace(' ','') status[i] = status[i].replace(' ','') info['house'] = house[i] info['money'] = money[i] info['status'] = status[i] yield info #下一页 next_page = response.xpath('/html/body/div[3]/div/div[6]/div[3]/a/@href').getall()[-1] print(next_page) if next_page is not None: print('进入下一页了啊') next_page = response.urljoin(next_page) yield scrapy.Request(next_page,callback=self.parse)分析：先获取div下的所有a标签的href组成的列表，然后取最后一个href 即：response.xpath(’/html/body/div[3]/div/div[6]/div[3]/a/@href’).getall()[-1]
2.items
# -*- coding: utf-8 -*- # Define here the models for your scraped items # # See documentation in: # https://docs.scrapy.org/en/latest/topics/items.html import scrapy class ZufangItem(scrapy.Item): # define the fields for your item here like: # name = scrapy.Field() house = scrapy.Field() money = scrapy.Field() status = scrapy.Field()3.pipelines 使用mongoDB数据库
# -*- coding: utf-8 -*- # Define your item pipelines here # # Don't forget to add your pipeline to the ITEM_PIPELINES setting # See: https://docs.scrapy.org/en/latest/topics/item-pipeline.html import pymongo conn = pymongo.MongoClient(host='localhost',port=27017) mydb = conn.test myset = mydb.zufang class ZufangPipeline(object): def process_item(self, item, spider): print('插入信息') informations = { 'house':item['house'], 'money':item['money'], 'status':item['status'], } myset.insert(informations) return item4.settings
# -*- coding: utf-8 -*- # Scrapy settings for zufang project # # For simplicity, this file contains only settings considered important or # commonly used. You can find more settings consulting the documentation: # # https://docs.scrapy.org/en/latest/topics/settings.html # https://docs.scrapy.org/en/latest/topics/downloader-middleware.html # https://docs.scrapy.org/en/latest/topics/spider-middleware.html BOT_NAME = 'zufang' SPIDER_MODULES = ['zufang.spiders'] NEWSPIDER_MODULE = 'zufang.spiders' # Crawl responsibly by identifying yourself (and your website) on the user-agent #USER_AGENT = 'zufang (+http://www.yourdomain.com)' # Obey robots.txt rules ROBOTSTXT_OBEY = False # Configure maximum concurrent requests performed by Scrapy (default: 16) #CONCURRENT_REQUESTS = 32 # Configure a delay for requests for the same website (default: 0) # See https://docs.scrapy.org/en/latest/topics/settings.html#download-delay # See also autothrottle settings and docs #DOWNLOAD_DELAY = 3 # The download delay setting will honor only one of: #CONCURRENT_REQUESTS_PER_DOMAIN = 16 #CONCURRENT_REQUESTS_PER_IP = 16 # Disable cookies (enabled by default) #COOKIES_ENABLED = False # Disable Telnet Console (enabled by default) #TELNETCONSOLE_ENABLED = False # Override the default request headers: #DEFAULT_REQUEST_HEADERS = { # 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', # 'Accept-Language': 'en', #} # Enable or disable spider middlewares # See https://docs.scrapy.org/en/latest/topics/spider-middleware.html #SPIDER_MIDDLEWARES = { # 'zufang.middlewares.ZufangSpiderMiddleware': 543, #} # Enable or disable downloader middlewares # See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html #DOWNLOADER_MIDDLEWARES = { # 'zufang.middlewares.ZufangDownloaderMiddleware': 543, #} # Enable or disable extensions # See https://docs.scrapy.org/en/latest/topics/extensions.html #EXTENSIONS = { # 'scrapy.extensions.telnet.TelnetConsole': None, #} # Configure item pipelines # See https://docs.scrapy.org/en/latest/topics/item-pipeline.html ITEM_PIPELINES = { 'zufang.pipelines.ZufangPipeline': 300, } # Enable and configure the AutoThrottle extension (disabled by default) # See https://docs.scrapy.org/en/latest/topics/autothrottle.html #AUTOTHROTTLE_ENABLED = True # The initial download delay #AUTOTHROTTLE_START_DELAY = 5 # The maximum download delay to be set in case of high latencies #AUTOTHROTTLE_MAX_DELAY = 60 # The average number of requests Scrapy should be sending in parallel to # each remote server #AUTOTHROTTLE_TARGET_CONCURRENCY = 1.0 # Enable showing throttling stats for every response received: #AUTOTHROTTLE_DEBUG = False # Enable and configure HTTP caching (disabled by default) # See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html#httpcache-middleware-settings #HTTPCACHE_ENABLED = True #HTTPCACHE_EXPIRATION_SECS = 0 #HTTPCACHE_DIR = 'httpcache' #HTTPCACHE_IGNORE_HTTP_CODES = [] #HTTPCACHE_STORAGE = 'scrapy.extensions.httpcache.FilesystemCacheStorage'5.main
from scrapy import cmdline cmdline.execute(['scrapy','crawl','danke'])