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基于pydpier爬取1药网(转载)

1.商品爬取#!usrbinenvpython#-*-encoding:utf-8-*-#Createdon2019-02-0208:59:40#Project:oneDru
1.商品爬取

#!/usr/bin/env python
#
-*- encoding: utf-8 -*-
#
Created on 2019-02-02 08:59:40
#
Project: oneDrugfrom pyspider.libs.base_handler import *
from pymongo import MongoClient
import reclass Handler(BaseHandler):crawl_config = {}def __init__(self):self.client = MongoClient('mongodb://localhost:27017')self.drug = self.client.drugdef insert_goods(self, data):collection = self.drug['goods']collection.update({'goods_id': data['goods_id']}, data, True)def insert_comments(self, data):collection = self.drug['comments']collection.insert_one(data)@every(minutes=24 * 60)def on_start(self):self.crawl('https://www.111.com.cn/categories/', callback=self.categories_page, validate_cert=False,fetch_type='js')@config(age=10 * 24 * 60 * 60)def categories_page(self, response):for each in response.doc('.allsort em > a').items():self.crawl(each.attr.href, callback=self.cagetory_list_page, validate_cert=False, fetch_type='js')@config(priority=1)def cagetory_list_page(self, response):for each in response.doc('#itemSearchList a[target="_blank"][class="product_pic pro_img"]').items():self.crawl(each.attr.href, callback=self.detail_page, validate_cert=False, fetch_type='js')next = response.doc('#search_table > div.turnPageBottom > a.page_next').attr.hrefself.crawl(next, callback=self.cagetory_list_page, validate_cert=False, fetch_type='js')@config(priority=2)def detail_page(self, response):goods_id = response.doc('#gallery_view > ul > li.item_number').text()cagetory_one = response.doc('body > div.wrap.clearfix > div > span:nth-child(3) > a').text()cagetory_two = response.doc('body > div.wrap.clearfix > div > span:nth-child(5) > a').text()cagetory_three = response.doc('body > div.wrap.clearfix > div > span:nth-child(7) > a').text()merchants = response.doc('div.middle_property > span:nth-child(1)').text()goods_name = response.doc('div.middle_property > h1').text()goods_desc = response.doc('div.middle_property > span.red.giftRed').text()goods_price = response.doc('div.middle_property > div.shangpin_info > dl:nth-child(2) > dd > span.good_price').text()total_comments = response.doc('#fristReviewCount > span > a').text()brand = response.doc('#tabCon > div:nth-child(1) > div.goods_intro > table > tbody > tr:nth-child(2) > td:nth-child(2)').text()spec = response.doc('#tabCon > div:nth-child(1) > div.goods_intro > table > tbody > tr:nth-child(2) > td:nth-child(4)').text()weight = response.doc('#tabCon > div:nth-child(1) > div.goods_intro > table > tbody > tr:nth-child(3) > td:nth-child(2)').text()manufacturers = response.doc('#tabCon > div:nth-child(1) > div.goods_intro > table > tbody > tr:nth-child(3) > td:nth-child(4)').text()approval_number = response.doc('#tabCon > div:nth-child(1) > div.goods_intro > table > tbody > tr:nth-child(4) > td:nth-child(2)').text()drug_type = response.doc('#tabCon > div:nth-child(1) > div.goods_intro > table > tbody > tr:nth-child(4) > td:nth-child(4)').text()instructions = {}if response.doc('#prodDetailCotentDiv > table > tbody > tr:nth-child(1) > th').text():for i in range(3, 22):instructions_key = \response.doc('#prodDetailCotentDiv > table > tbody > tr:nth-child({}) > th'.format(i)).text().split(" ")[0]instructions_value = response.doc('#prodDetailCotentDiv > table > tbody > tr:nth-child({}) > td'.format(i)).text()instructions[instructions_key] = instructions_valuetotal_comments = response.doc('#itemComments > span').text()good_comments = response.doc('#productExperience > div > ul > li:nth-child(2) > a > span').text()mid_comments = response.doc('#productExperience > div > ul > li:nth-child(3) > a > span').text()bad_comments = response.doc('#productExperience > div > ul > li:nth-child(4) > a > span').text()url_id = re.findall('\d+', response.url)[1]goods_data = {'url_id': url_id,'goods_id': goods_id,'goods_name': goods_name,'goods_desc': goods_desc,'goods_price': goods_price,'merchants': merchants,'cagetory': {'1': cagetory_one,'2': cagetory_two,'3': cagetory_three},'drug_detail': {'brand': brand,'spec': spec,'weight': weight,'manufacturers': manufacturers,'approval_number': approval_number,'drug_type': drug_type},'instructions': instructions,'comments': {'total_comments': total_comments,'good_comments': good_comments,'mid_comments': mid_comments,'bad_comments': bad_comments}}self.insert_goods(goods_data)

 

2.评论爬取

from pymongo import MongoClient
import requests
from bs4 import BeautifulSoup
import re
import socketclass Drug:def __init__(self):self.clint = MongoClient('mongodb://localhost:27017')self.drug = self.clint.drugself.collection = self.drug['goods']self.comm_collection = self.drug['comments']def dbmodify(self):for data in self.collection.find({},{"goods_id":1,"goods_price":1}):try:_id = data['_id']id = data['goods_id'].split(":")[1]price = data['goods_price'].split("¥")[1]self.collection.update({'_id': _id},{'$set':{'goods_id':id,'goods_price':price}})print(_id, id, price)except IndexError:passdef getBaseArgument(self,goods_id):base_url = 'https://www.111.com.cn/interfaces/review/list/html.action'data = {'goodsId': goods_id,'pageIndex': 1,'score': '1&_19020301'}try:self.collection.update_one({'url_id': goods_id}, {'$set': {'commspider': True}})requests.packages.urllib3.disable_warnings()requests.adapters.DEFAULT_RETRIES = 5# 设置连接活跃状态为Falses = requests.session()s.keep_alive = Falser = s.get(base_url, params=data, timeout = 5,verify=False)r.close()soup = BeautifulSoup(r.text, 'html.parser')if soup.find_all("div", class_="view_no_result"):return "No Comments!"else:total_page_text = soup.find_all(text=re.compile(r'共\d+页'))[0]pattern = re.compile(r'\d+')total_page = pattern.findall(total_page_text)return total_page[0]except requests.exceptions.RequestException as e:print(e)def getCommlist(self,goods_id, total_page):base_url = 'https://www.111.com.cn/interfaces/review/list/html.action'try:for i in range(1, int(total_page)):data = {'goodsId': goods_id,'pageIndex': i,'score': '1&_19020301'}try:requests.packages.urllib3.disable_warnings()requests.adapters.DEFAULT_RETRIES = 15# 设置连接活跃状态为Falses = requests.session()s.keep_alive = Falser = s.get(base_url, params=data, timeout = 5,verify=False)r.close()soup = BeautifulSoup(r.text, 'html.parser')for tr in soup.find_all("tr"):comments = {}try:comments['goodsId'] = goods_idcomments['content'] = tr.find('p').text.strip()comments['date'] = tr.find('p', attrs={'class': 'eval_date'}).text.strip()self.comm_collection.insert_one(comments)except:print(goods_id + "Have some problem!\n")print(comments)except requests.exceptions.RequestException as e:print(e)except ValueError:return "No Comments! Try next!"def getComments(self):i = 0goods_list = []for data in self.collection.find({'commspider': False}, {"url_id"}):id = data['url_id']goods_list.append(id)length = len(goods_list)print("总共 {} 条商品".format(length))for good in goods_list:total_page = self.getBaseArgument(good)comments = self.getCommlist(good,total_page)i = i + 1print("总共 {} 条商品\n目前第 {} 条\n商品编号 {} \n".format(length,i, good))print(comments)test = Drug().getComments()

 

转:https://www.cnblogs.com/tjp40922/p/10611624.html



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