如何從python中的img html抓取src

Question

我正在嘗試抓取img的src，但是我發現的代碼返回了許多img src，但不是我想要的那個。 我不知道自己在做什么錯。 我在“ https://www.tripadvisor.dk/Restaurant_Review-g189541-d15804886-Reviews-The_Pescatarian-Copenhagen_Zealand.html ”上抓取TripAdvisor

這是我要從中提取的HTML代碼段：

 <div class="restaurants-detail-overview-cards-LocationOverviewCard__cardColumn--2ALwF"><h6>Placering og kontaktoplysninger</h6><span><div><span data-test-target="staticMapSnapshot" class=""><img class="restaurants-detail-overview-cards-LocationOverviewCard__mapImage--22-Al" src="https://trip-raster.citymaps.io/staticmap?scale=1&amp;zoom=15&amp;size=347x137&amp;language=da&amp;center=55.687988,12.596316&amp;markers=icon:http%3A%2F%2Fc1.tacdn.com%2F%2Fimg2%2Fmaps%2Ficons%2Fcomponent_map_pins_v1%2FR_Pin_Small.png|55.68799,12.596316"></span></div></span>

我希望代碼返回：（來自src的子字符串）

55.68799,12.596316

我努力了：

    import pandas as pd
    pd.options.display.max_colwidth = 200
    from urllib.request import urlopen
    from bs4 import BeautifulSoup as bs
    import re

    web_url = "https://www.tripadvisor.dk/Restaurant_Review-g189541-d15804886-Reviews-The_Pescatarian-Copenhagen_Zealand.html"
    url = urlopen(web_url)
    url_html = url.read()

    soup = bs(url_html, 'lxml')
    soup.find_all('img')

    for link in soup.find_all('img'):
        print(link.get('src'))

回報是沿着這個路線，但不是我需要的src：

https://static.tacdn.com/img2/branding/rebrand/TA_logo_secondary.svg
https://static.tacdn.com/img2/branding/rebrand/TA_logo_primary.svg 
https://static.tacdn.com/img2/branding/rebrand/TA_logo_secondary.svg
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==

Answer 1

硒是一種解決方法，我對其進行了測試，並且看起來很有魅力。 這個給你：

from selenium import webdriver

driver = webdriver.Chrome('chromedriver.exe')
driver.get("https://www.tripadvisor.dk/Restaurant_Review-g189541-d15804886-Reviews-The_Pescatarian-Copenhagen_Zealand.html")
links = driver.find_elements_by_xpath("//*[@src]")
urls = []
for link in links:
    url = link.get_attribute('src')
    if '|' in url:
        urls.append(url.split('|')[1])  # saves in a list only the numbers you want i.e. 55.68799,12.596316
    print(url)
print(urls)

以上['55.68799,12.596316']

如果您以前沒有使用過selenium ，則可以找到一個網絡驅動程序https://chromedriver.storage.googleapis.com/index.html?path=2.46/

或在這里

https://sites.google.com/a/chromium.org/chromedriver/downloads

Answer 2

您可以只請求並重新執行此操作。 只是src的坐標部分是基於位置的變量。

import requests, re

p = re.compile(r'"coords":"(.*?)"')
r = requests.get('https://www.tripadvisor.dk/Restaurant_Review-g189541-d15804886-Reviews-The_Pescatarian-Copenhagen_Zealand.html')
coords = p.findall(r.text)[1]
src = f'https://trip-raster.citymaps.io/staticmap?scale=1&zoom=15&size=347x137&language=da&center={coords}&markers=icon:http://c1.tacdn.com//img2/maps/icons/component_map_pins_v1/R_Pin_Small.png|{coords}'
print(src)
print(coords)