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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.pdf

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爬虫一键爬取 淘宝天猫宝贝页面主图颜色图和详情图 淘宝天猫宝贝页面主图颜色图和详情图 python 爬虫一键爬取 的教程的教程 今天小编就为大家分享一篇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,具有很好的参 考价值,希望对大家有所帮助。一起跟随小编过来看看吧 实例如下所示: 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我们。
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