抓取 google 网页结果无效

Question

为什么以下内容无法抓取 google 的搜索结果？

尝试打开响应失败并抛出 HTTPError。我查看了其他问题，据我所知我已经正确完成了编码等。

我知道我没有包括捕获错误等，这只是一个缩小版本。

def scrape_google(query):

    url = "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&"
    headers = {'User-Agent': 'Mozilla/5.0'}
    search = urllib.parse.urlencode({'q': " ".join(term for term in query)})
    b_search = search.encode("utf-8")
    response = urllib.request.Request(url, b_search, headers)
    page = urllib.request.urlopen(response)

Answer 1

它不起作用，因为 URL 的 return 是 JSON 格式。如果您使用 URL 并输入如下搜索词：

http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=bingo

您将以 JSON 格式返回结果，这不是 beautifulsoup 设置处理的格式。（但它比刮擦好多了）

{"responseData": 
     {"results":
   [{"GsearchResultClass":"GwebSearch","unescapedUrl":"http://www.pogo.com/games/bingo-luau","url":"http://www.pogo.com/games/bingo-

//etc

编辑添加：

使用请求：

url = ('http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=bingo')
resp = requests.get(url)
print(resp.content)

生成：

b'{"responseData": {"results":[{"GsearchResultClass":"GwebSearch","unescapedUrl":"http://www.pogo.com/games/b...
//etc

Answer 2

就像人们在评论中所说的那样，requests 库（和（如果需要）结合 beautifulsoup）是更好的。我回答了关于 抓取 google 搜索结果 here.
的问题
或者，您可以使用 SerpApi 中的 third-party Google Organic Results API。这是付费 API 免费试用。

查看 playground 进行测试。

要集成的代码（假设您要抓取标题、摘要和 link）：

import os
from serpapi import GoogleSearch

params = {
    "engine": "google",
    "q": "best lasagna recipe ever",
    "api_key": os.getenv("API_KEY"),
}

search = GoogleSearch(params)
results = search.get_dict()

for result in results["organic_results"]:
   print(f"Title: {result['title']}\nSummary: {result['snippet']}\nLink: {result['link']}")

输出：

Title: The BEST Lasagna Recipe Ever! | The Recipe Critic
Summary: How to Make The BEST Classic Lasagna Ever. Sauté meat then simmer with bases and seasonings: In a large skillet over medium high heat add the olive oil and onion. Cook lasagna noodles: In a large pot, bring the water to a boil. Mix cheeses together: In medium sized bowl add the ricotta cheese, parmesan, and egg.
Link: https://therecipecritic.com/lasagna-recipe/

Title: The Most Amazing Lasagna Recipe - The Stay At Home Chef
Summary: The Most Amazing Lasagna Recipe is the best recipe for homemade Italian-style lasagna. The balance ... This recipe is so good—it makes the kind of lasagna people write home about! ... Hands down absolutely the best lasagna recipe ever!
Link: https://thestayathomechef.com/amazing-lasagna-recipe/

Disclaimer, I work for SerpApi.

抓取 google 网页结果无效

scraping google web results not working

python

beautifulsoup

web-scraping

python-3.x

bs4

输出：