import requests

import json

import csv

from lxml import etree

from bs4 import BeautifulSoup

import time

'''

#如果ip被封，可以使用这个进行ip设置

proxy ='114.239.148.103'

proxies={

'http':'http://'+proxy,

'https':'https://'+proxy,

}

'''

comment_url = 'https://sclub.jd.com/comment/productPageComments.action?callback'

#获取评论

def get_comment(productid,name):

headers = {

#'cookie': 'shshshfpa=4e6c0f90-587c-a46f-5880-a7debd7d4393-1544616560; __jdu=1126324296; PCSYCityID=412; user-key=44089d07-befa-4522-87fc-bcc039ec7045; pinId=qopcdCj6kcR3U84v0KTTbrV9-x-f3wj7; pin=jd_769791719e9e9; unick=jd_769791719e9e9; _tp=nc%2FbpB%2BkeSbk3jZ6p2H0FlWrdUa1gbgi16QiQ7NBXKY%3D; _pst=jd_769791719e9e9; cn=9; ipLoc-djd=1-72-2799-0; mt_xid=V2_52007VwMSUVpaUV8cQR5sUWMDEgUIUVBGGEofWhliABNUQQtQWkpVHVVXb1ZGB1lYW11LeRpdBW4fElFBW1VLH0ESXgJsAhpiX2hSahxLGFsFZwcRUG1bWlo%3D; shshshfpb=bRnqa4s886i2OeHTTR9Nq6g%3D%3D; unpl=V2_ZzNtbUZTSxJ3DURTLk0LAmJXFVlKAkdAIQ1PUXseCVIzU0UKclRCFXwURldnGlUUZwcZXERcQRdFCHZXchBYAWcCGllyBBNNIEwHDCRSBUE3XHxcFVUWF3RaTwEoSVoAYwtBDkZUFBYhW0IAKElVVTUFR21yVEMldQl2VHsaWwdkBhFVRWdzEkU4dl17HVwDYDMTbUNnAUEpAUJRfRpcSGcDEVpAVEYWfQ92VUsa; __jda=122270672.1126324296.1544405080.1545968922.1545980857.16; __jdc=122270672; ceshi3.com=000; TrackID=11EpDXYHaqwJE15W6paeMk_GMm05o3NUUeze9XyIcFs33GGxX8knxMpxWTeID75qSiUlj31s8CtKJs4hJUV-7CvKuiOEyDd8bvOCH7zzigeI; __jdv=122270672|baidu-pinzhuan|t_288551095_baidupinzhuan|cpc|0f3d30c8dba7459bb52f2eb5eba8ac7d_0_55963436def64e659d5de48416dfeaff|1545980984854; 3AB9D23F7A4B3C9B=OA3G4SO3KYLQB6H3AIX36QQAW34BF376WJN66IUPEQAG6FUA2NWGM6R6MBDL32HLDG62WL2FICMYIVMOU6ISUWHKPE; shshshfp=1ed96ad08a7585648cd5017583df22bd; _gcl_au=1.1.162218981.1545981094; JSESSIONID=305879A97D4EA21F4D5C4207BB81423F.s1; shshshsID=c8c51ee0c5b1ddada7c5544abc3eea8a_5_1545981289039; __jdb=122270672.11.1126324296|16.1545980857; thor=3A30EBABA844934A836AC9AA37D0F4B85306071BD7FC64831E361A626E76F6977EC7794D06F2A922AEABF7D3D7DC22FBE2EB6B240F81A13F5A609368D4185BA0081D7C34A93760063D2F058F5B916835B4960EC8A9122008745971D812BA9E4AE48542CCC5A42E5CD786CC93770E520E36F950614C06A7EB05C8E1DD93EEA844B2EBA9B0136063FCFB6B7C83AECA828774041A9FED7BD98496689496122822FF',

"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36",

"Referer": "https://item.jd.com/%s.html"%(productid)

}

for i in range(2):#此处设置爬取几页的评论

page = i

params = {

"productId": "%s"%(productid), # 商品id

'score': 0,#如果想要爬取全部评论设置为0，好评为3，中评为2，差评为1，晒图评价为4，追评为5

'sortType': 5,

'page': page,

'pageSize': 10,

}

comment_resp = requests.get(url=comment_url, params=params, headers=headers)

comment_str = comment_resp.text

if comment_str=='':

print("获取内容为空")

comment_dict = json.loads(comment_str)

comments = comment_dict['comments']

load(comments,name,productid)

#数据存储

def load(comments,name,productid):

for comment in comments:

test = comment['content']

# print(infor)

with open('C:/Users/Administrator/Desktop/JD评论/'+'%s'%(name)+'%s'%(productid)+'.csv', 'a', newline='')as csv_file:

text=[]

text.append(test)

writer = csv.writer(csv_file)

writer.writerow(text)

#获取搜索商品名界面的每个商品的序号

def get_number(name):

headers = {

#'cookie': 'shshshfpa=4e6c0f90-587c-a46f-5880-a7debd7d4393-1544616560; __jdu=1126324296; PCSYCityID=412; user-key=44089d07-befa-4522-87fc-bcc039ec7045; pinId=qopcdCj6kcR3U84v0KTTbrV9-x-f3wj7; pin=jd_769791719e9e9; unick=jd_769791719e9e9; _tp=nc%2FbpB%2BkeSbk3jZ6p2H0FlWrdUa1gbgi16QiQ7NBXKY%3D; _pst=jd_769791719e9e9; cn=9; ipLoc-djd=1-72-2799-0; mt_xid=V2_52007VwMSUVpaUV8cQR5sUWMDEgUIUVBGGEofWhliABNUQQtQWkpVHVVXb1ZGB1lYW11LeRpdBW4fElFBW1VLH0ESXgJsAhpiX2hSahxLGFsFZwcRUG1bWlo%3D; shshshfpb=bRnqa4s886i2OeHTTR9Nq6g%3D%3D; unpl=V2_ZzNtbUZTSxJ3DURTLk0LAmJXFVlKAkdAIQ1PUXseCVIzU0UKclRCFXwURldnGlUUZwcZXERcQRdFCHZXchBYAWcCGllyBBNNIEwHDCRSBUE3XHxcFVUWF3RaTwEoSVoAYwtBDkZUFBYhW0IAKElVVTUFR21yVEMldQl2VHsaWwdkBhFVRWdzEkU4dl17HVwDYDMTbUNnAUEpAUJRfRpcSGcDEVpAVEYWfQ92VUsa; __jda=122270672.1126324296.1544405080.1545968922.1545980857.16; __jdc=122270672; ceshi3.com=000; TrackID=11EpDXYHaqwJE15W6paeMk_GMm05o3NUUeze9XyIcFs33GGxX8knxMpxWTeID75qSiUlj31s8CtKJs4hJUV-7CvKuiOEyDd8bvOCH7zzigeI; __jdv=122270672|baidu-pinzhuan|t_288551095_baidupinzhuan|cpc|0f3d30c8dba7459bb52f2eb5eba8ac7d_0_55963436def64e659d5de48416dfeaff|1545980984854; 3AB9D23F7A4B3C9B=OA3G4SO3KYLQB6H3AIX36QQAW34BF376WJN66IUPEQAG6FUA2NWGM6R6MBDL32HLDG62WL2FICMYIVMOU6ISUWHKPE; shshshfp=1ed96ad08a7585648cd5017583df22bd; _gcl_au=1.1.162218981.1545981094; JSESSIONID=305879A97D4EA21F4D5C4207BB81423F.s1; shshshsID=c8c51ee0c5b1ddada7c5544abc3eea8a_5_1545981289039; __jdb=122270672.11.1126324296|16.1545980857; thor=3A30EBABA844934A836AC9AA37D0F4B85306071BD7FC64831E361A626E76F6977EC7794D06F2A922AEABF7D3D7DC22FBE2EB6B240F81A13F5A609368D4185BA0081D7C34A93760063D2F058F5B916835B4960EC8A9122008745971D812BA9E4AE48542CCC5A42E5CD786CC93770E520E36F950614C06A7EB05C8E1DD93EEA844B2EBA9B0136063FCFB6B7C83AECA828774041A9FED7BD98496689496122822FF',

"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36",

}

response = requests.get("https://search.jd.com/Search?keyword=%s&enc=utf-8"%(name), headers=headers)

html = BeautifulSoup(response.text,'lxml')

list=html.find_all("li",class_='gl-item')

numbers=[]

for number in list:

numbers.append(int(number.get("data-sku")))

return numbers

def main():

list=["手机","电脑","杯子"]

porductid=[]

for i in list:

productid=get_number(i)

for j in productid:

get_comment(j,i)

time.sleep(0.5)

print("爬取完毕")

main()