Hallo, wie kann ich meine Crawlspider zu arbeiten, kann ich einloggen, aber nichts passiert, ich nicht wirklich nicht kratzen. Ich habe auch den Scrapy Doc gelesen und ich verstehe wirklich nicht die Regeln, um sie zu kratzen. Warum passiert nichts nach "Erfolgreich eingeloggt. Lass uns anfangen zu kriechen!"Mit scrapy bekommen crawlspider arbeiten mit authentifizierten (angemeldet) Benutzersitzung
Ich hatte auch diese Regel am Ende meiner else-Anweisung, aber entfernen Sie sie, weil sie nicht einmal aufgerufen wurde, weil sie in meinem else-Block war. also habe ich es an der Spitze der start_request() -Methode verschoben, aber habe Fehler bekommen, also habe ich meine Regeln entfernt.
rules = (
Rule(extractor,callback='parse_item',follow=True),
)
mein Code:
from scrapy.contrib.spiders.init import InitSpider
from scrapy.http import Request, FormRequest
from scrapy.contrib.linkextractors.sgml import SgmlLinkExtractor
from scrapy.contrib.spiders import Rule
from scrapy.contrib.spiders import CrawlSpider, Rule
from scrapy.spider import BaseSpider
from scrapy.selector import HtmlXPathSelector
from linkedconv.items import LinkedconvItem
class LinkedPySpider(CrawlSpider):
name = 'LinkedPy'
allowed_domains = ['linkedin.com']
login_page = 'https://www.linkedin.com/uas/login'
# start_urls = ["http://www.linkedin.com/csearch/results?type=companies&keywords=&pplSearchOrigin=GLHD&pageKey=member-home&search=Search#facets=pplSearchOrigin%3DFCTD%26keywords%3D%26search%3DSubmit%26facet_CS%3DC%26facet_I%3D80%26openFacets%3DJO%252CN%252CCS%252CNFR%252CF%252CCCR%252CI"]
start_urls = ["http://www.linkedin.com/csearch/results"]
def start_requests(self):
yield Request(
url=self.login_page,
callback=self.login,
dont_filter=True
)
# def init_request(self):
#"""This function is called before crawling starts."""
# return Request(url=self.login_page, callback=self.login)
def login(self, response):
#"""Generate a login request."""
return FormRequest.from_response(response,
formdata={'session_key': '[email protected]', 'session_password': 'mypassword'},
callback=self.check_login_response)
def check_login_response(self, response):
#"""Check the response returned by a login request to see if we aresuccessfully logged in."""
if "Sign Out" in response.body:
self.log("\n\n\nSuccessfully logged in. Let's start crawling!\n\n\n")
# Now the crawling can begin..
self.log('Hi, this is an item page! %s' % response.url)
return
else:
self.log("\n\n\nFailed, Bad times :(\n\n\n")
# Something went wrong, we couldn't log in, so nothing happens.
def parse_item(self, response):
self.log("\n\n\n We got data! \n\n\n")
self.log('Hi, this is an item page! %s' % response.url)
hxs = HtmlXPathSelector(response)
sites = hxs.select('//ol[@id=\'result-set\']/li')
items = []
for site in sites:
item = LinkedconvItem()
item['title'] = site.select('h2/a/text()').extract()
item['link'] = site.select('h2/a/@href').extract()
items.append(item)
return items
myoutput
C:\Users\ye831c\Documents\Big Data\Scrapy\linkedconv>scrapy crawl LinkedPy
2013-07-12 13:39:40-0500 [scrapy] INFO: Scrapy 0.16.5 started (bot: linkedconv)
2013-07-12 13:39:40-0500 [scrapy] DEBUG: Enabled extensions: LogStats, TelnetCon
sole, CloseSpider, WebService, CoreStats, SpiderState
2013-07-12 13:39:41-0500 [scrapy] DEBUG: Enabled downloader middlewares: HttpAut
hMiddleware, DownloadTimeoutMiddleware, UserAgentMiddleware, RetryMiddleware, De
faultHeadersMiddleware, RedirectMiddleware, CookiesMiddleware, HttpCompressionMi
ddleware, ChunkedTransferMiddleware, DownloaderStats
2013-07-12 13:39:41-0500 [scrapy] DEBUG: Enabled spider middlewares: HttpErrorMi
ddleware, OffsiteMiddleware, RefererMiddleware, UrlLengthMiddleware, DepthMiddle
ware
2013-07-12 13:39:41-0500 [scrapy] DEBUG: Enabled item pipelines:
2013-07-12 13:39:41-0500 [LinkedPy] INFO: Spider opened
2013-07-12 13:39:41-0500 [LinkedPy] INFO: Crawled 0 pages (at 0 pages/min), scra
ped 0 items (at 0 items/min)
2013-07-12 13:39:41-0500 [scrapy] DEBUG: Telnet console listening on 0.0.0.0:602
3
2013-07-12 13:39:41-0500 [scrapy] DEBUG: Web service listening on 0.0.0.0:6080
2013-07-12 13:39:41-0500 [LinkedPy] DEBUG: Crawled (200) <GET https://www.linked
in.com/uas/login> (referer: None)
2013-07-12 13:39:42-0500 [LinkedPy] DEBUG: Redirecting (302) to <GET http://www.
linkedin.com/nhome/> from <POST https://www.linkedin.com/uas/login-submit>
2013-07-12 13:39:45-0500 [LinkedPy] DEBUG: Crawled (200) <GET http://www.linkedi
n.com/nhome/> (referer: https://www.linkedin.com/uas/login)
2013-07-12 13:39:45-0500 [LinkedPy] DEBUG:
Successfully logged in. Let's start crawling!
2013-07-12 13:39:45-0500 [LinkedPy] DEBUG: Hi, this is an item page! http://www.
linkedin.com/nhome/
2013-07-12 13:39:45-0500 [LinkedPy] INFO: Closing spider (finished)
2013-07-12 13:39:45-0500 [LinkedPy] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 1670,
'downloader/request_count': 3,
'downloader/request_method_count/GET': 2,
'downloader/request_method_count/POST': 1,
'downloader/response_bytes': 65218,
'downloader/response_count': 3,
'downloader/response_status_count/200': 2,
'downloader/response_status_count/302': 1,
'finish_reason': 'finished',
'finish_time': datetime.datetime(2013, 7, 12, 18, 39, 45, 136000),
'log_count/DEBUG': 11,
'log_count/INFO': 4,
'request_depth_max': 1,
'response_received_count': 2,
'scheduler/dequeued': 3,
'scheduler/dequeued/memory': 3,
'scheduler/enqueued': 3,
'scheduler/enqueued/memory': 3,
'start_time': datetime.datetime(2013, 7, 12, 18, 39, 41, 50000)}
2013-07-12 13:39:45-0500 [LinkedPy] INFO: Spider closed (finished)
Danke Paul das war sehr hilfreich – Gio
Gern geschehen. –