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by-selenium.py
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by-selenium.py
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from selenium import webdriver
from bs4 import BeautifulSoup as bs
import pandas as pd
import requests, re
import os
import time
import pandas as pd
page = 15
name = '北京朝阳大悦城'
info_table = pd.DataFrame(columns=['昵称', '口味', '环境', '服务', '时间', '评论'])
css_headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36'}
font_size = 14
start_y = 23
def get_font_dict_by_offset(url):
global css_headers, start_y, font_size
"""
获取坐标偏移的文字字典, 会有最少两种形式的svg文件（目前只遇到两种）
"""
res = requests.get(url, headers=css_headers)
html = res.text
font_dict = {}
y_list = re.findall(r'd="M0 (\d+?) ', html)
if y_list:
font_list = re.findall(r'<textPath .*?>(.*?)<', html)
for i, string in enumerate(font_list):
y_offset = start_y - int(y_list[i])
sub_font_dict = {}
for j, font in enumerate(string):
x_offset = -j * font_size
sub_font_dict[x_offset] = font
font_dict[y_offset] = sub_font_dict
else:
font_list = re.findall(r'<text.*?y="(.*?)">(.*?)<', html)
for y, string in font_list:
y_offset = start_y - int(y)
sub_font_dict = {}
for j, font in enumerate(string):
x_offset = -j * font_size
sub_font_dict[x_offset] = font
font_dict[y_offset] = sub_font_dict
# print(font_dict)
return font_dict
def get_css_info(url):
global css_headers
res = requests.get(url, headers=css_headers)
html = res.text
background_image_link = re.findall(r'background-image:.*?\((.*?svg)\)', html)
# print(background_image_link)
background_image_link_list = []
for i in background_image_link:
url = 'http:' + i
background_image_link_list.append(url)
# print(background_image_link_list)
html = re.sub(r'span.*?\}', '', html)
group_offset_list = re.findall(r'\.([a-zA-Z0-9]{5,6}).*?round:(.*?)px (.*?)px;', html)
'''
多个偏移字典，合并在一起；；；
'''
font_dict_by_offset_list = {}
for i in background_image_link_list:
font_dict_by_offset_list.update(get_font_dict_by_offset(i))
font_dict_by_offset = font_dict_by_offset_list
# print(font_dict_by_offset)
font_dict = {}
for class_name, x_offset, y_offset in group_offset_list:
x_offset = x_offset.replace('.0', '')
y_offset = y_offset.replace('.0', '')
try:
font_dict[class_name] = font_dict_by_offset[int(y_offset)][int(x_offset)]
except:
font_dict[class_name] = ''
return font_dict
def getdata():
pre = '//*[@id="review-list"]/div[2]/div[3]/div[3]/div[3]/ul/li['
# a = driver.find_element_by_xpath('//*[@id="review-list"]/div[2]/div[3]/div[3]/div[3]/ul/li[1]/div/div[4]')
# print(a.text)
thelist = []
for i in range(1, 16):
alist = []
name_xpath = pre + str(i) + ']/div/div[1]/a'
kouwei_xpath = pre + str(i) + ']/div/div[2]/span[2]/span[1]'
huanjing_xpath = pre + str(i) + ']/div/div[2]/span[2]/span[2]'
fuwu_xpath = pre + str(i) + ']/div/div[2]/span[2]/span[3]'
time_xpath = pre + str(i) + ']/div/div[7]/span[1]'
name = driver.find_element_by_xpath(name_xpath).text
time.sleep(0.5)
try:
kouwei = driver.find_element_by_xpath(kouwei_xpath).text
except:
try:
kouwei_xpath = pre + str(i) + ']/div/div[3]/span[2]/span[1]'
kouwei = driver.find_element_by_xpath(kouwei_xpath).text
except:
kouwei = 'none'
time.sleep(0.5)
try:
huanjing = driver.find_element_by_xpath(huanjing_xpath).text
except:
try:
huanjing_xpath = pre + str(i) + ']/div/div[3]/span[2]/span[2]'
huanjing = driver.find_element_by_xpath(huanjing_xpath).text
except:
huanjing = 'none'
time.sleep(0.5)
try:
fuwu = driver.find_element_by_xpath(fuwu_xpath).text
except:
try:
fuwu_xpath = pre + str(i) + ']/div/div[3]/span[2]/span[3]'
fuwu = driver.find_element_by_xpath(fuwu_xpath).text
except:
fuwu = 'none'
time.sleep(0.5)
try:
date = driver.find_element_by_xpath(time_xpath).text
except:
try:
time_xpath = pre + str(i) + ']/div/div[6]/span[1]'
date = driver.find_element_by_xpath(time_xpath).text
except:
date = 'none'
time.sleep(0.5)
alist.append(name)
alist.append(str(kouwei).replace('口味：', ''))
alist.append(str(huanjing).replace('环境：', ''))
alist.append(str(fuwu).replace('服务：', ''))
alist.append(date)
# info_table.loc[i] = alist
thelist.append(alist)
time.sleep(1)
return thelist
def next_page():
# driver.find_element_by_xpath('//*[@id="review-list"]/div[2]/div[3]/div[3]/div[4]/div/a[10]').click()
driver.find_element_by_class_name('NextPage').click()
# 展开评论
def zhankai():
pre = '//*[@id="review-list"]/div[2]/div[3]/div[3]/div[3]/ul/li['
for i in range(1, 16):
try:
zhankai_xpath = pre + str(i) + ']/div/div[3]/div/a'
driver.find_element_by_xpath(zhankai_xpath).click()
except:
try:
zhankai_xpath = pre + str(i) + ']/div/div[4]/div/a'
driver.find_element_by_xpath(zhankai_xpath).click()
except:
print('没能成功展开')
time.sleep(0.5)
# 滑动滑条，加载全部信息
def drop_down():
for x in range(1, 15, 2):
time.sleep(0.5)# 防止被预测到反爬
h = x/14
js = 'document.documentElement.scrollTop = document.documentElement.scrollHeight * %f' % h
driver.execute_script(js)
h = 0.1
js = 'document.documentElement.scrollTop = document.documentElement.scrollHeight * %f' % h
driver.execute_script(js)
def login():
driver.find_element_by_xpath('//*[@id="top-nav"]/div/div[2]/span[1]/a[1]').click()
time.sleep(15) # 登录
def get_comment():
a = driver.page_source
html_tree = bs(a, 'lxml')
name_texts = html_tree.find_all("a", class_ = "name") # 找到所有的名字
item_texts = html_tree.find_all("span", class_ = "item") # 找到所有的评分
item_list = []
for each in item_texts:
if '人均' not in str(each.get_text()):
item_list.append(str(each.get_text()).replace('口味：', '').replace('环境：', '').replace('服务：', '').replace('\n', '').replace(' ', ''))
date_texts = html_tree.find_all("span", class_ = "time") # 找到所有的时间
alist = []
comment_texts = html_tree.find_all("div", class_="review-words") # 找到所有的评论
comment_list = []
for comment_text in comment_texts:
comment_text = str(comment_text)
class_set = []
# print(html_text)
for span in re.findall(r'<svgmtsi class="([a-zA-Z0-9]{5,6})"></svgmtsi>', comment_text):
class_set.append(span)
for class_name in class_set:
try:
comment_text = re.sub(r'<svgmtsi class="%s"></svgmtsi>' % class_name, font_dict[class_name], comment_text)
# print('{}已替换完毕_______________________________'.format(font_dict[class_name]))
except:
comment_text = re.sub(r'<svgmtsi class="%s"></svgmtsi>' % class_name, '', comment_text)
print('替换失败…………………………………………………………………………&&&&&&&&&&&&&&&&&&&&&&&&')
b = str(re.findall('[\u4e00-\u9fa5]+', comment_text)).replace('收起评论', '').replace('文字', '').replace('[', '').replace(']', '').replace('\'', '')
comment_list.append(b)
for i in range(1, 16):
clist = []
clist.append(str(name_texts[i].get_text()).replace(' ', '').replace('\n', ''))
clist.append(item_list[i * 3])
clist.append(item_list[i * 3 + 1])
clist.append(item_list[i * 3 + 2])
clist.append(str(date_texts[i - 1].get_text()).replace(' ', '').replace('\n', '')[:10])
clist.append(comment_list[i - 1])
alist.append(clist)
print(alist)
return alist
if __name__ == '__main__':
driver = webdriver.Chrome(r'D:\360极速浏览器下载\chromedriver_win32\chromedriver.exe')
driver.get('http://www.dianping.com/shop/6026269/review_all')
time.sleep(3)
login()
# 获取密码表
css_link = driver.find_element_by_xpath('/html/head/link[4]').get_attribute('href')
font_dict = get_css_info(css_link)
time.sleep(2)
# drop_down()
for i in range(0, page):
zhankai()
alist = get_comment()
for j in range(0, 15):
try:
info_table.loc[i * 15 + j] = alist[j]
print(' 已完成' + str(i * 15 + j) + '个')
except:
info_table.to_csv('西贝筱面村' + name + '.csv', encoding='gbk')
print('已完成' + str(i + 1) + '页')
next_page()
# print(info_table)
info_table.to_csv('西贝筱面村' + name + '.csv', encoding='gbk')