你好，我试图从www.soccerstats.com上获取一些信息。下面的代码没有从该网站上获取任何信息。输出为：
{'BOT_NAME': 'superlig',
'NEWSPIDER_MODULE': 'superlig.spiders',
'REQUEST_FINGERPRINTER_IMPLEMENTATION': '2.7',
'SPIDER_MODULES': ['superlig.spiders'],
'TWISTED_REACTOR': 'twisted.internet.asyncioreactor.AsyncioSelectorReactor',
'USER_AGENT': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 '
'(KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36'}
2022-11-01 19:55:49 [asyncio] DEBUG: Using selector: SelectSelector
2022-11-01 19:55:49 [scrapy.utils.log] DEBUG: Using reactor: twisted.internet.asyncioreactor.AsyncioSelectorReactor
2022-11-01 19:55:49 [scrapy.utils.log] DEBUG: Using asyncio event loop: asyncio.windows_events._WindowsSelectorEventLoop
2022-11-01 19:55:49 [scrapy.extensions.telnet] INFO: Telnet Password: d7ca26fc46152e7d
2022-11-01 19:55:49 [scrapy.middleware] INFO: Enabled extensions:
['scrapy.extensions.corestats.CoreStats',
'scrapy.extensions.telnet.TelnetConsole',
'scrapy.extensions.logstats.LogStats']
2022-11-01 19:55:49 [scrapy.middleware] INFO: Enabled downloader middlewares:
['scrapy.downloadermiddlewares.httpauth.HttpAuthMiddleware',
'scrapy.downloadermiddlewares.downloadtimeout.DownloadTimeoutMiddleware',
'scrapy.downloadermiddlewares.defaultheaders.DefaultHeadersMiddleware',
'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware',
'scrapy.downloadermiddlewares.retry.RetryMiddleware',
'scrapy.downloadermiddlewares.redirect.MetaRefreshMiddleware',
'scrapy.downloadermiddlewares.httpcompression.HttpCompressionMiddleware',
'scrapy.downloadermiddlewares.redirect.RedirectMiddleware',
'scrapy.downloadermiddlewares.cookies.CookiesMiddleware',
'scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware',
'scrapy.downloadermiddlewares.stats.DownloaderStats']
2022-11-01 19:55:49 [scrapy.middleware] INFO: Enabled spider middlewares:
['scrapy.spidermiddlewares.httperror.HttpErrorMiddleware',
'scrapy.spidermiddlewares.offsite.OffsiteMiddleware',
'scrapy.spidermiddlewares.referer.RefererMiddleware',
'scrapy.spidermiddlewares.urllength.UrlLengthMiddleware',
'scrapy.spidermiddlewares.depth.DepthMiddleware']
2022-11-01 19:55:49 [scrapy.middleware] INFO: Enabled item pipelines:
[]
2022-11-01 19:55:49 [scrapy.core.engine] INFO: Spider opened
2022-11-01 19:55:49 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2022-11-01 19:55:49 [scrapy.extensions.telnet] INFO: Telnet console listening on 127.0.0.1:6023
2022-11-01 19:55:50 [filelock] DEBUG: Attempting to acquire lock 1903475372576 on C:UsersAdministratorAppDataLocalProgramsPythonPython310libsite-packagestldextract.suffix_cache/publicsuffix.org-tldsde84b5ca2167d4c83e38fb162f2e8738.tldextract.json.lock
2022-11-01 19:55:50 [filelock] DEBUG: Lock 1903475372576 acquired on C:UsersAdministratorAppDataLocalProgramsPythonPython310libsite-packagestldextract.suffix_cache/publicsuffix.org-tldsde84b5ca2167d4c83e38fb162f2e8738.tldextract.json.lock
2022-11-01 19:55:50 [filelock] DEBUG: Attempting to release lock 1903475372576 on C:UsersAdministratorAppDataLocalProgramsPythonPython310libsite-packagestldextract.suffix_cache/publicsuffix.org-tldsde84b5ca2167d4c83e38fb162f2e8738.tldextract.json.lock
2022-11-01 19:55:50 [filelock] DEBUG: Lock 1903475372576 released on C:UsersAdministratorAppDataLocalProgramsPythonPython310libsite-packagestldextract.suffix_cache/publicsuffix.org-tldsde84b5ca2167d4c83e38fb162f2e8738.tldextract.json.lock
2022-11-01 19:55:50 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://www.soccerstats.com/latest.asp?league=turkey> (referer: None)
2022-11-01 19:55:50 [scrapy.core.engine] INFO: Closing spider (finished)
2022-11-01 19:55:50 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 320,
'downloader/request_count': 1,
'downloader/request_method_count/GET': 1,
'downloader/response_bytes': 43248,
'downloader/response_count': 1,
'downloader/response_status_count/200': 1,
'elapsed_time_seconds': 1.018966,
'finish_reason': 'finished',
'finish_time': datetime.datetime(2022, 11, 1, 16, 55, 50, 519778),
'httpcompression/response_bytes': 279559,
'httpcompression/response_count': 1,
'log_count/DEBUG': 8,
'log_count/INFO': 10,
'response_received_count': 1,
'scheduler/dequeued': 1,
'scheduler/dequeued/memory': 1,
'scheduler/enqueued': 1,
'scheduler/enqueued/memory': 1,
'start_time': datetime.datetime(2022, 11, 1, 16, 55, 49, 500812)}
2022-11-01 19:55:50 [scrapy.core.engine] INFO: Spider closed (finished)
我在settings.py中设置了一个user_agent，并在代码中添加了time.sleep。而且我的代码在调试时得到了正确的输出。我的代码如下：
import scrapy
from scrapy.linkextractors import LinkExtractor
from scrapy.spiders import CrawlSpider, Rule
import time
class SoccerstatsSpider(CrawlSpider):
name = 'soccerstats'
allowed_domains = ['soccerstats.com']
start_urls =['https://www.soccerstats.com/latest.asp?league=turkey']
#user_agent = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36'
rules = (
Rule(LinkExtractor(restrict_xpaths="//div[@style='width:644px;margin-left:10px;padding-left:4px;margin-right:0px;margin-top:3px;float:left;']/table[3]/tbody/tr[@class='odd']/td[2]/a"), callback='parse_item', follow=True),
)
#def set_user_agent(self,request):
#request.headers['User-Agent']=self.user_agent
time.sleep(0.5)
def parse_item(self, response):
yield{
'Team' : response.xpath(".//div[@id='content']/div[1]/div[2]/font/text()").get(),
}
请帮我解释一下我做错了什么。
我尝试添加一个用户代理和time.sleep((
问题出在LinkExtractorxpath选择器中。尽管xpath突出了网站上的元素。当我执行scrapy shell命令来获取该选择器的结果元素时，我什么也得不到。
你可以将选择器简化为下面的选择器，它对我有效，并从网站上抓取项目。
...
rules = (
Rule(LinkExtractor(restrict_xpaths='//td/a[@itemprop="url"]'), callback='parse_item', follow=True),
)
...
这应该对你有用。如果有帮助，请告诉我。