我已经草率地编写了一个脚本,以从网页中获取响应文本。问题是我的脚本总是仅由于存在None
而打印301 status
。
有什么方法可以控制我从301开始的状态并在控制台中打印响应吗?
这是我尝试过的:
import scrapy
from scrapy.crawler import CrawlerProcess
class ResponseSpider(scrapy.Spider):
name = "transfermarkt"
handle_httpstatus_list = [301]
start_urls = ["https://www.transfermarkt.es/guti/profil/spieler/6079"]
def parse(self,response):
print(response.text)
if __name__ == "__main__":
c = CrawlerProcess({'USER_AGENT':'Mozilla/5.0'})
c.crawl(ResponseSpider)
c.start()
当前显示的内容:
2019-04-29 13:39:41 [scrapy.extensions.telnet] INFO: Telnet console listening on 127.0.0.1:6024
2019-04-29 13:39:42 [scrapy.core.engine] DEBUG: Crawled (301) <GET https://www.transfermarkt.es/guti/profil/spieler/6079> (referer: None)
2019-04-29 13:39:43 [scrapy.core.engine] INFO: Closing spider (finished)
2019-04-29 13:39:43 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 220,
'downloader/request_count': 1,
'downloader/request_method_count/GET': 1,
'downloader/response_bytes': 511,
'downloader/response_count': 1,
'downloader/response_status_count/301': 1,
'finish_reason': 'finished',
'finish_time': datetime.datetime(2019, 4, 29, 7, 39, 43, 50813),
'log_count/DEBUG': 1,
'log_count/INFO': 9,
'response_received_count': 1,
'scheduler/dequeued': 1,
'scheduler/dequeued/memory': 1,
'scheduler/enqueued': 1,
'scheduler/enqueued/memory': 1,
'start_time': datetime.datetime(2019, 4, 29, 7, 39, 41, 869745)}
2019-04-29 13:39:43 [scrapy.core.engine] INFO: Spider closed (finished)
答案 0 :(得分:2)
在这种情况下:
对https://www.transfermarkt.es/guti/profil/spieler/6079的请求(URL A -301响应)被重定向到
https://www.transfermarkt.es/zeljko-kalac/profil/spieler/6079(网址 B -200响应)
Scrapy默认使用RedirectMiddleware
(docs,code)处理重定向3xx状态
要解析网页 B ,您只需从代码中删除handle_httpstatus_list = [301]
在大多数情况下,301响应不包含html代码。响应头中包含的所有相关数据。
如果您需要打印来自url A 的301响应中的相关数据:
handle_httpstatus_list = [301]
response.headers
数据代替response.text