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插件爬虫相当于二次爬虫,二次加工信息,因为大部分插件信息也是从正规网上去获取数据,这次列举helium插件爬虫案例,其他插件爬虫也是类似这个方式.
需求
1、⽤⾕歌浏览器#xff0c;下载chrome extension#xff1a;“Helium 10
2、登录helium10 3、打开
打开Amazo…说明
插件爬虫相当于二次爬虫,二次加工信息,因为大部分插件信息也是从正规网上去获取数据,这次列举helium插件爬虫案例,其他插件爬虫也是类似这个方式.
需求
1、⽤⾕歌浏览器下载chrome extension“Helium 10
2、登录helium10 3、打开
打开Amazon⾸⻚搜索women clothes https://www.amazon.com/s?
kwomenclothescridF0IYFXRNCJHDsprefixwomenclothes%2Caps%2C113refn b_sb_noss_1 点击插件点击Xray得到如上图的弹窗。
针对这个表格⾥的每⼀⾏
1记录所有的信息序号ProductASINBrandPriceSalesRevenueBSR
Seller Country/Region, Fees, Active Sellers, Ratings, Reviews, Size Tier, Buy Box, Fulfillment, Dimensions, Weight, Creation Date)等信息
(2) 在SalesBSR和Reviews旁边如果不是空值的话会有⼀个图标 点进图标选All Time 下载CSV以每个产品的ASIN命名csv⽂件。
⽐如
B0CRKQ44NH_sales.csv, B0CRKQ44NH_bsr.csv, B0CRKQ44NH_review.csv
也就是说针对每个产品我想要得到⼀个总表和三个分表SalesBSR和Review Count。遍历所有的women clothes产品我⼀共需要10000个产品。 代码
import timefrom platforms.base_platform import ObjectPlatform
from util.xpath_operation import SeleniumOperation
from util.pd_util import PandasUtil
from urllib.parse import urlsplit
import ddddocr
import os
import sys
import datetime
helium 谷歌插件爬虫
class HeliumExtensionPlatform(ObjectPlatform):name heliumextensionplatformdescribtion config_file %s%s % (name, _config)setting_file %s%s % (name, _setting)def __init__(self, config_file_inputNone, setting_file_inputNone, logNone):super(HeliumExtensionPlatform, self).__init__(load_extension_2True, loginFalse, loggerlog)if not self.driver:print(启动失败...,请根据问题,重新启动)sys.exit(1)self.config_file config_file_input if config_file_input else \%s%s % (self.base_config_package, self.config_file)self.setting_file setting_file_input if setting_file_input else \%s%s % (self.base_setting_package, self.setting_file)self.config_package __import__(self.config_file, fromlistTrue)self.setting_package __import__(self.setting_file, fromlistTrue)self.log logSeleniumOperation.log logself.beans {}def before_run(self):dependencies self.config_package.basic_config[dependencies]for depend in dependencies:self.log.info(加载依赖:{}...., depend)platform_position __import__(dependencies[depend][path], fromlistTrue)if hasattr(platform_position, dependencies[depend][class]):dependency getattr(platform_position,dependencies[depend][class]) # http://blog.csdn.net/d_ker/article/details/53671952dependency_obj dependency(self.driver, logself.log)self.beans[depend] dependency_objself.log.info(加载依赖:{}成功, depend)self.ocr ddddocr.DdddOcr()print(启动%s平台 % HeliumExtensionPlatform.describtion)def run(self):url self.config_package.basic_config[main_url]# 打开亚马逊页面print(打开页面:, url)self.get_url_ignore_exception(url)# 解决打开url有验证码的情况self._input_code(url)page 1print(打开url, url)SeleniumOperation.get_url_ignore_exception(self.driver, self.config_package.basic_config[url])while True:print(第%s页数据获取...... % page)datas self.run_helium_extension()if datas:out_file_name os.path.join(self.config_package.basic_config[out_path],str(datetime.date.today()) _ str(page) .csv)PandasUtil.write_csv_append(datas, out_file_name)elements SeleniumOperation.get_elements(self.driver, self.setting_package.NEXT_PAGE_XPATH)if elements:next_page_element elements[-1]text next_page_element.textif 下一页 or Next in text:next_page_element.click()page 1print(有下一页, 进入下一页,开始爬取第%s页...... % (page))while True:time.sleep(5)url_str self.driver.current_urlpage_str page str(page)if page_str in url_str:self.config_package.basic_config[url] url_strbreakprint(当前url%s,希望url中有关键词%s%(url_str,page_str))continueelse:print(找不到下一页,结束运行)break输入验证码def _input_code(self, url):while True:input_code_element SeleniumOperation.get_element(self.driver, self.setting_package.INPUT_CODE_XPATH)if input_code_element:code self._ocr_code()if not code:print(刷新页面,识别不出来)self.get_url_ignore_exception(url)continueelse:breakelse:returninput_code_element.clear()input_code_element.send_keys(code)SeleniumOperation.click_button_anyway(self.driver, self.setting_package.SUBMIT_CODE_XPATH)def _ocr_code(self):pic_elements SeleniumOperation.get_elements(self.driver, self.setting_package.IMAGE_CODE_XPATH)if len(pic_elements) 1:pic_element pic_elements[0]image_url pic_element.get_attribute(src)import requests# code_file_name os.path.join(self.config_package.basic_config[out_path],# os.path.splitext(# self.config_package.basic_config[file_name].split(/)[-1])[# 0] - str(datetime.time()) .jpg)# with open(code_file_name, modewb) as f:# f.write(requests.get(image_url).content) # 将图片以二进制写入## with open(code_file_name, rb) as f: # 打开图片# img_bytes f.read() # 读取图片res self.ocr.classification(requests.get(image_url).content) # 识别print(识别验证码是:, res)return resreturn Nonedef run_helium_extension(self):print(开始运行helium插件)try:self.beans[helium].before_run(dataself.config_package.basic_config)datas self.beans[helium].run()return datasexcept Exception as e:print(运行helium插件出错了)self.log.exception(e)return Nonefinally:self.beans[helium].after_run()def after_run(self):print(%s 平台已经运行完成请根据log目录查看运行日志\n % HeliumExtensionPlatform.describtion)super(HeliumExtensionPlatform, self).after_run()if __name__ __main__:url https://www.amazon.fr/dp/B0BNW5P4PC?th1netloc urlsplit(url).netlocsubfix_location netloc.split(.)[-1]print(subfix_location)obj HeliumExtensionPlatform()obj.run()插件运行核心代码
import random
import timefrom extensions.basic_extension import BasicExtension
from util.xpath_operation import SeleniumOperation
from settings import ConfigPackage
from settings import SettingPackage
from settings import DownLoadPath
from selenium.webdriver.common.by import By
import os
import shutil
from util.io_util import IOUTILclass Helium10Extension(BasicExtension):name helium10extensionconfig_file %s%s % (name, _config)setting_package %s%s % (name, _setting)def __init__(self, driver, log):super(Helium10Extension, self).__init__()self.config_file %s%s % (ConfigPackage, self.config_file)self.setting_file %s%s % (SettingPackage, self.setting_package)self.config_package __import__(self.config_file, fromlistTrue)self.setting_package __import__(self.setting_file, fromlistTrue)self.log logself.driver driverself.shadow_driver driverSeleniumOperation.log logdef before_run(self, dataNone):# XPathOperation.click_button(self.driver, self.setting_package.HELIUM10_CLICK_XPATH)url data[url]while self.login():passself._get_shadow_dom(url)while True:SeleniumOperation.click_button_anyway(self.shadow_driver, self.setting_package.HELIUM10_CLICK_CSS_PATH,by_typeBy.CSS_SELECTOR)element SeleniumOperation.get_element(self.shadow_driver,self.setting_package.HELIUM10_XRAY_2_CSS_PATH,loadingFalse, by_typeBy.CSS_SELECTOR)if element:SeleniumOperation.click_button(self.shadow_driver,self.setting_package.HELIUM10_XRAY_2_CSS_PATH,by_typeBy.CSS_SELECTOR)breakelse:SeleniumOperation.click_button_anyway(self.shadow_driver, self.setting_package.HELIUM10_CLICK_CSS_PATH,by_typeBy.CSS_SELECTOR)element SeleniumOperation.get_element(self.shadow_driver, self.setting_package.LOGIN_CSS_PATH,loadingFalse, by_typeBy.CSS_SELECTOR)if element:print(需要重新登录....)self.login()self._get_shadow_dom(url)def _get_shadow_dom(self, url):while True:element SeleniumOperation.get_element(self.driver, self.setting_package.AMAZION_XPATH)if element:self.shadow_driver SeleniumOperation.get_shadow_root_js(self.driver,self.setting_package.SHADOW_CSS_PATH)if self.shadow_driver:returnprint(刷新页面:, url)element SeleniumOperation.get_element(self.driver, self.setting_package.SORRY_XPATH)if element:print(回到首页)SeleniumOperation.click_button_anyway(self.driver, self.setting_package.SORRY_XPATH)time.sleep(10)SeleniumOperation.get_url_ignore_exception(self.driver, url)# def before_refresh(self):# element SeleniumOperation.get_element(self.driver, self.setting_package.SORRY_XPATH)# if element:# SeleniumOperation.get_url_ignore_exception()def run(self):datas, shadow_driver self.run_page(0)# if not next_page:# print(没有下一页,结束运行.....)# return datasprint(关闭x-ray)click_result Falsewhile not click_result:element SeleniumOperation.get_element(shadow_driver, self.setting_package.ALL_CLOSE_CSS_PATH,by_typeBy.CSS_SELECTOR)if not element:print(x-ray已经关闭了)breakclick_result SeleniumOperation.click_button_anyway(shadow_driver, self.setting_package.ALL_CLOSE_CSS_PATH,by_typeBy.CSS_SELECTOR)return datasdef run_page(self, begin_index):datas []count 0while True:shadow_driver SeleniumOperation.get_shadow_root_js(self.driver,self.setting_package.SHADOW_DETAIL_PATH)if shadow_driver:count 1print(X_RAY 树加载出来)elements SeleniumOperation.get_elements(shadow_driver, self.setting_package.TABLE_CSS_PATH,loadingFalse,by_typeBy.CSS_SELECTOR)if elements and len(elements) begin_index:breakprint(等待数据出来.......)element SeleniumOperation.get_element(shadow_driver, self.setting_package.NEW_UI_CSS_PATH,loadingFalse,by_typeBy.CSS_SELECTOR)if element:print(现在是旧的ui,切换新的ui)SeleniumOperation.click_button_anyway(shadow_driver, self.setting_package.NEW_UI_CSS_PATH,loadingFalse,by_typeBy.CSS_SELECTOR)if elements and count 20 and begin_index 0:print(重新点击load mores的按钮)SeleniumOperation.click_button_anyway(shadow_driver, self.setting_package.LOAD_MORE_CSS_PATH,by_typeBy.CSS_SELECTOR)print(等待X-RAY加载完成)time.sleep(5) # 这个X-RAY隐藏树加载有点慢print(找到%s条数据 % len(elements))elements elements[begin_index:]print(只要获取%s条数据 % len(elements))for index, element in enumerate(elements):print(获取第%s条数据 % (index 1))datas.append(self.load_data(element))# # 基于xpath也能找到# child_element SeleniumOperation.get_element(element, self.setting_package.ORDER_XPATH,# loadingTrue)# if child_element:# print(xpath方式找到儿子的元素, child_element.text)print(开始下载csv文件)# 下载文件for index, data in enumerate(datas):print(下载第%s个商品:%s 的csv文件 % (index 1, data[Product]))self.download_all_time_csv(elements[index], data, shadow_driver)# load_more_element SeleniumOperation.get_element(shadow_driver, self.setting_package.LOAD_MORE_CSS_PATH,# by_typeBy.CSS_SELECTOR)# loads_more False# if load_more_element:# print(还有loads more,尝试loads more点击)# loads_more SeleniumOperation.click_button_anyway(shadow_driver, self.setting_package.LOAD_MORE_CSS_PATH,# by_typeBy.CSS_SELECTOR)return datas, shadow_driverdef download_all_time_csv(self, element, data, shadow_driver):while SeleniumOperation.click_button_anyway(element, self.setting_package.COLUMNS_CSS_PATH[BSR] self.setting_package.BSR_CLICK_CSS_PATH,loadingTrue,by_typeBy.CSS_SELECTOR) \or SeleniumOperation.click_button_anyway(element,self.setting_package.COLUMNS_CSS_PATH[Reviews] self.setting_package.REVIEWS_CLICK_CSS_PATH,loadingTrue,by_typeBy.CSS_SELECTOR) \or SeleniumOperation.click_button_anyway(element, self.setting_package.COLUMNS_CSS_PATH[Sales] self.setting_package.SALE_CLICK_CSS_PATH,loadingTrue,by_typeBy.CSS_SELECTOR):print(进入sales、bsr 、reviews趋势图页面)element SeleniumOperation.get_element(shadow_driver, self.setting_package.SALE_CLICK_SWITCH_CSS_PATH,loadingTrue,by_typeBy.CSS_SELECTOR)if element:break## else:# print(商品%s三个地方都不可点击无法下载,ASIN号%s % (data[Product], data[Asin]))# returnfile_name data[Asin] if data[Asin] else random.Random(10000)if not self.download_files_csv(shadow_driver, self.setting_package.SALE_CLICK_SWITCH_CSS_PATH):print(下载商品{}的sales csv文件失败.format(data[Product]))self.log.error(下载商品{}的sales csv文件失败.format(data[Product]))else:self.wait_loaded_and_rename(file_name _sales.csv, data)print(下载商品%s的bsr csv文件 % (data[Product]))if not self.download_files_csv(shadow_driver, self.setting_package.BSR_CLICK_SWITCH_CSS_PATH):print(下载商品{}的bsr csv文件失败.format(data[Product]))self.log.error(下载商品{}的bsr csv文件失败.format(data[Product]))else:self.wait_loaded_and_rename(file_name _bsr.csv, data)print(下载商品%s的reviews csv文件 % (data[Product]))if not self.download_files_csv(shadow_driver, self.setting_package.REVIEWS_CLICK_SWITCH_CSS_PATH):print(下载商品%s的reviews csv文件 % (data[Product]))self.log.error(下载商品{}的reviews csv文件失败.format(data[Product]))else:self.wait_loaded_and_rename(file_name _reviews.csv, data)click_result Falsewhile not click_result:print(关闭窗口)element SeleniumOperation.get_element(shadow_driver, self.setting_package.CLOSE_CSS_PATH, loadingTrue,by_typeBy.CSS_SELECTOR)if not element:print(进入sales、bsr 、reviews趋势图页面已经关闭)breakclick_result SeleniumOperation.click_button_anyway(shadow_driver, self.setting_package.CLOSE_CSS_PATH,loadingTrue, by_typeBy.CSS_SELECTOR)def download_files_csv(self, shadow_driver, css_path):click_result SeleniumOperation.click_button_anyway(shadow_driver, css_path, loadingTrue,by_typeBy.CSS_SELECTOR)if click_result:# 选择 all——time时间while True:times_elements SeleniumOperation.get_elements(shadow_driver, self.setting_package.ALL_TIME_CSS_PATH,loadingFalse,by_typeBy.CSS_SELECTOR)if times_elements and len(times_elements) 1:times_elements[-1].click()breaktime.sleep(5)# 点击下载入口click_result SeleniumOperation.click_button_anyway(shadow_driver,self.setting_package.DOWNLOAD_ENTRY_CSS_PATH,by_typeBy.CSS_SELECTOR)while not click_result:time.sleep(5)click_result SeleniumOperation.click_button_anyway(shadow_driver,self.setting_package.DOWNLOAD_ENTRY_CSS_PATH,by_typeBy.CSS_SELECTOR)# 下载csv文件return SeleniumOperation.click_button_anyway(shadow_driver, self.setting_package.DOWNLOAD_CSV_CSS_PATH,by_typeBy.CSS_SELECTOR)def wait_loaded_and_rename(self, filename, data):download_file_name SeleniumOperation.get_downloaded_filename(self.driver, 5) # wait_time 根据实际需要进行调整if download_file_name:try:shutil.move(os.path.join(DownLoadPath, download_file_name),os.path.join(DownLoadPath, filename))print(文件:%s下载完成 % (filename))returnexcept:passlast_file, last_name IOUTIL.get_last_filename(DownLoadPath)if _sales in last_name or _bsr in last_name or _reviews in last_name:print(下载商品{}的sales csv文件失败.format(data[Product]))self.log.error(下载商品{}的sales csv文件失败.format(data[Product]))returnresult IOUTIL.rename(last_file, last_name, filename)if not result:self.log.error(文件:{}修改成新文件名{}出错了请手动修改.format(last_name, filename))def load_data(self, element):element_data {}for key, values in self.setting_package.COLUMNS_CSS_PATH.items():child_element SeleniumOperation.get_element(element, values,loadingTrue,by_typeBy.CSS_SELECTOR)if child_element:text child_element.textelement_data[key] textelse:print(找不到%s的元素,请查询是否path问题,默认设置为空)element_data[key] Nonereturn element_datadef after_run(self, dataNone):passdef _is_login(self):# 判断是否登陆了element SeleniumOperation.get_element(self.shadow_driver, self.setting_package.HELIUM10_CLICK_CSS_PATH,by_typeBy.CSS_SELECTOR)return True if element else Falsedef login(self):try:print(进入尝试自动登录.......)current_url self.driver.current_urlif https://members.helium10.com/dashboard?accountId in current_url:print(已经登录成功)return FalseSeleniumOperation.get_url_ignore_exception(self.driver, self.config_package.basic_config[login_url])element SeleniumOperation.get_element(self.driver, self.setting_package.EMAIL_XPATH)if not element:print(找不到登录输入信息, 可能已经登录成功)return Falseelement.send_keys(self.config_package.basic_config[email])element SeleniumOperation.get_element(self.driver, self.setting_package.PASSWORD_XPATH)element.send_keys(self.config_package.basic_config[password])element SeleniumOperation.get_element(self.driver, self.setting_package.CAPTCHAID_XPATH)if element:input(请在页面手动操作登陆验证码,然后输入任意按键继续:)SeleniumOperation.click_button(self.driver, self.setting_package.LOGIN_XPATH)return Falseexcept:self.log.exception(登录失败)return True
