When I try to crawl Google for search results, Scrapy just yields the Google home page: http://pastebin.com/FUbvbhN4
Here is my spider:
import scrapy
class GoogleFinanceSpider(scrapy.Spider):
name = "google"
start_urls = ['http://www.google.com/#q=finance.google.com:+3m+co']
allowed_domains = ['www.google.com']
def parse(self, response):
filename = response.url.split("/")[-2] + '.html'
with open(filename, 'wb') as f:
f.write(response.body)
Is there something wrong with this url as a starting url? When I open it in my browser -- by putting it in the address bar (not by filling in the search form) -- I get valid search results.
Yes, looks like that address is redirecting to the home page:
example with scrapy shell http://www.google.com/#q=finance.google.com:+3m+co:
...
[s] request <GET http://www.google.com/#q=finance.google.com:+3m+co>
[s] response <200 http://www.google.com/>
...
Checking your url it makes sense, it isn't containing parameters, but #q (which isn't a url parameter) and the browser is the one recognizing that and making it a google search, so it is not exactly a url path.
the correct google search url is: http://www.google.com/search?q=YOURQUERY
for the most cases, google would redirect the spider to the CAPTCHA page, bing search result is easier to crawl.
there is a project for crawling search result from Google/Bing/Baidu https://github.com/titantse/seCrawler
来源：https://stackoverflow.com/questions/33395133/scrapy-google-crawl-doesnt-work