python 爬虫一键爬取 淘宝天猫宝贝页面主图颜色图和详情图的教程

实例如下所示：

import requests
import re,sys,os
import json
import threading
import pprint
class spider:
 def __init__(self,sid,name):
 
 self.id = sid
 self.headers = { "Accept":"text/html,application/xhtml+xml,application/xml;",
  "Accept-Encoding":"gzip",
  "Accept-Language":"zh-CN,zh;q=0.8",
  "Referer":"http://www.example.com/",
  "User-Agent":"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36"
  }
 
 self.name=name
 def openurl(self,url):
 
 self.request = requests.get(url,headers = self.headers) 
 if self.request.ok:
  return self.request.text
  
 def matchs(self):
 
 tmall_exp = r"Setup\(([\s\S]+?)\);"### 匹配商品数据的正则
 detail= r"src=\"(https://img\S+?[jpgifn]+?)\"" ###匹配 商品详情图的正则
 html = self.openurl("https://detail.tmall.com/item.htm?id=%s"%self.id)
 data = re.findall(tmall_exp,html)
 data = json.loads(data[0])
 main_img = data['propertyPics'] ## 这里包括了主图和颜色图的地址
 color_data =data['valItemInfo'] ['skuList'] ### 这里获得商品的颜色信息列表 包括颜色编码 颜色名称,商品skuID
 detail_html = self.openurl("http:"+data['api']["httpsDescUrl"])
 detail_image = re.findall(detail,detail_html)
 self.newdata={"MAIN":main_img['default'],"DETAIL":detail_image,"id":self.id,}
 
 psvs = []
 self.newdata['COLOR']=[]
 
 for v in range(len(color_data)):
  if ";"in color_data[v]["pvs"]:
  psv = color_data[v]['pvs'][color_data[v]['pvs'].find(";")+1:]
  else:
  psv = color_data[v]['pvs']
  if psv in psvs:
  
  continue
  psvs.append(psv)
 
  self.newdata['COLOR'].append({color_data[v]["names"]:main_img[";"+psv+";"]})
  
 pprint.pprint(self.newdata)
 
 return self.newdata
 
 def download(self):
 if len(self.newdata)>0:
  for x in range(len(self.newdata['MAIN'])):
  
  threading.Thread(target=self.download_main,args=(self.newdata['MAIN'][x],x)).start()
  
  for x in self.newdata['COLOR']:
  
  threading.Thread(target=self.download_color,args=(x,)).start()
  for x in range(len(self.newdata['DETAIL'])):
  
  threading.Thread(target=self.download_detail,args=(self.newdata['DETAIL'][x],x)).start()
 return
 def download_main(self,url,index):
 try:
  img = requests.get("http:"+url,stream=True,headers = self.headers,timeout=10)
 except:
  print(sys.exc_info())
  return
 if img.ok:
  if not os.path.exists(self.name+"/main"):
  try:
   os.makedirs(self.name+"/main")
  except:
   pass
  imgs = open(self.name+"/main/%s.jpg"%index,"wb")
  imgs.write(img.content)
  imgs.close()
  
 def download_color(self,url):
  
 try:
  img = requests.get("http:"+url[list(url.keys())[0]][0],stream=True,headers = self.headers,timeout=10)
 except:
  print(sys.exc_info())
  return
 if img.ok:
  if not os.path.exists(self.name+"/color"):
  try:
   os.makedirs(self.name+"/color")
  except:
   pass
  if "/"in list(url.keys())[0]:
  color = list(url.keys())[0].replace("/","_")
  elif "\\" in list(url.keys())[0]:
  color = list(url.keys())[0].replace("\\","_")
  else:
  color = list(url.keys())[0]
  imgs = open(self.name+"/color/%s.jpg"%color,"wb")
  imgs.write(img.content)
  imgs.close()
 def download_detail(self,url,index):
 try:
  img = requests.get(url,stream=True,headers = self.headers,timeout=10)
 except:
  print(sys.exc_info())
  return
 if img.ok:
  if not os.path.exists(self.name+"/detail"):
  try:
   os.makedirs(self.name+"/detail")
  except:
   pass
  
  imgs = open(self.name+"/detail/%s.jpg"%index,"wb")
  imgs.write(img.content)
  imgs.close()
  
if __name__ =="__main__":
 
 sid = 528766269341 ## 这里输入天猫宝贝ID
 taobao = spider(sid,"下载图片/T")
 taobao.matchs()
 taobao.download()

以上这篇python 爬虫一键爬取 淘宝天猫宝贝页面主图颜色图和详情图的教程就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。