# -*- coding: utf-8 -*- # @Time : 2020/12/2 9:58 # @Author : ward # @File : 3.py import re import requests import random from parsel import Selector class DaZongDianPing: def __init__(self): self.headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.183 Safari/537.%s' % random.randint(1, 1000000), 'Host': 'www.dianping.com', "Cookie": "_lxsdk_cuid=17451850da2c8-0151b42767558d-5a40201d-1fa400-17451850da3c8; _lxsdk=17451850da2c8-0151b42767558d-5a40201d-1fa400-17451850da3c8; _hc.v=3de5d487-65ad-a36a-71b1-c2eca91f37ef.1599095509; fspop=test; s_ViewType=10; dplet=e2e81f83472f4fe27e2a8928f00d24b7; dper=7f72060feeb63c283b680d6f38a54880bd9a44235ca03a0e460480fcf5d55e5a625885d5ad489752cfeb6709c61e2f9296fe9e733dd377f255892ff076df1a1d21f866b2ca757945796d0888f0951bf12e33b34f69f96426e173c128ea192a2d; ll=7fd06e815b796be3df069dec7836c3df; ua=%E5%90%8E%E5%A4%A9%E3%80%82%E3%80%82%E3%80%82; ctu=b5785c51f597a565ad3d8e65f9b30f75b29ec4a827de86a259bfeb6fbf80ce70; aburl=1; cy=2; cye=beijing; __utma=205923334.1472379769.1606804705.1606804705.1606804705.1; __utmz=205923334.1606804705.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __utmc=205923334; looyu_id=fcdb89be99ee3adbf016cb59105e993b84_51868%3A1; cityid=2; switchcityflashtoast=1; default_ab=citylist%3AA%3A1%7Cindex%3AA%3A3; _lx_utm=utm_source%3DBaidu%26utm_medium%3Dorganic; Hm_lvt_602b80cf8079ae6591966cc70a3940e7=1606290415,1606879423; Hm_lpvt_602b80cf8079ae6591966cc70a3940e7=1606879438; _lxsdk_s=1762174b956-be1-f70-a8f%7C%7C327", 'Accept-Encoding': 'gzip', } self.main() def main(self): proxies_url = 'http://xxx.com/api/gettps/?orderid=910687793312312&num=1&format=json&sep=1' # res = requests.get(proxies_url).json() # print(res) # ip = res.get('data').get('proxy_list')[0] # print(ip) # self.proxies = { # "http": "http://xx@%s/" % ip # } html = self.get_index() css_url, class_name = self.get_url_and_tag(html) di = self.get_css_and_svg(css_url, class_name) self.parse_index(html, di) def get_index(self): url = 'http://www.dianping.com/shop/l2xKmVcQ5nWBYCXA/review_all' resp = requests.get(url, headers=self.headers) print(resp) print(resp.text) if resp.status_code == 200: return resp.text def get_url_and_tag(self, html): '''获取css_url和网页中的加密字体标签的class名''' css_url = re.findall(r'href="(.*?svgtextcss.*?)"', html) if css_url: css_url = 'http:' + css_url[0] # print(css_url) # 加密字体的class名 class_name = re.findall(r'<svgmtsi class="(.*?)">', html) return css_url, class_name def get_css_and_svg(self, css_url, class_name): ''' 获取css属性和svg地址，根据css属性查找真实数据，构建替换字典 svg地址有3个 cc[class^="wgx"] 电话 bb[class^="wnu"] 地址 svgmtsi[class^="kvg"] 评论 ''' # print('css_url', css_url) # http://s3plus.meituan.net/v1/mss_0a06a471f9514fc79c981b5466f56b91/svgtextcss/0ddbef571464748f0408df2fb2ac1756.css css_resp = requests.get(css_url).text.replace(" ", "").replace(" ", "") # print("css_resp", css_resp) # print(css_resp) # 获取评论的svg地址 svg_url = re.findall(r'svgmtsi.*?url((.*?));', css_resp) # print("svg_url", svg_url) if svg_url: svg_url = 'http:' + svg_url[0] # print(svg_url) svg_resp = requests.get(svg_url).text # print("svg_resp", svg_resp) # 获取css属性值 对应的坐标值 d = {} for name in class_name: # print('class_name', name) coord = re.findall(r"%s{background:-(.*?)px-(.*?)px;}" % name, css_resp) # print("coord", coord) x, y = coord[0] css_x, css_y = int(float(x)), int(float(y)) # 获取svg标签对应的y值，规则是svg_y>=css_y svg_data = Selector(svg_resp) tests = svg_data.xpath('//text') # 3.如何选择svg_y？比较y坐标，选择大于等于css_y的最接近的svg_y svg_y = [i.attrib.get('y') for i in tests if css_y <= int(i.attrib.get('y'))][0] # 根据svg_y确定具体的text的标签 svg_text = svg_data.xpath(f'//text[@y="{svg_y}"]/text()').extract_first() # 4、确认SVG中的文字大小 font_size = re.findall(r'font-size:(d+)px', svg_resp)[0] # 5、得到css样式vhkbvu属性映射svg的位置 # css_x // 字体大小 的值就是数值的下标 position = css_x // int(font_size) s = svg_text[position] d[name] = s # print(d) # 加密字体整个标签与真实值之间的字典 di = {f'<svgmtsi class="{k}"></svgmtsi>': v for k, v in d.items()} return di def parse_index(self, html, di): '''解析网页数据''' for key, value in di.items(): if key in html: html = html.replace(key, value) # print(html) selector = Selector(html) # 评论摘要 # desc_li = selector.xpath('//div[@class="review-truncated-words"]/text()').extract() desc_li = selector.xpath('//div[@class="review-words Hide"]/text()').extract() for desc in desc_li: desc = desc.replace(' ', '').replace(' ', '').replace(' ', '') print(desc) if __name__ == '__main__': a = DaZongDianPing()