我试图用与我在one of the answers中找到的相似的方式抓取{a1}(请看更新答案)。我稍微修改了代码,以便删除不推荐使用的内容。在
一开始我遇到了robots.txt
限制我的问题,所以我发现我可以设置ROBOTSTXT_OBEY=False
设置.py实际上,它似乎忽略了它,但由于某些原因,spider不再使用parse
方法。在
这是我的蜘蛛
from scrapy.http import Request, FormRequest
from scrapy.item import Item, Field
from scrapy.spiders import Spider
import logging
class AcrisItem(Item):
borough = Field()
block = Field()
class AcrisSpider(Spider):
name = "acris"
allowed_domains = ["a836-acris.nyc.gov"]
start_urls = ['https://a836-acris.nyc.gov/DS/DocumentSearch/PartyName']
def start_requests(self):
return [(Request(url, meta={'dont_redirect': True}, callback=self.parse)) for url in self.start_urls]
def parse(self, response):
form_token = response.selector.xpath('//input[@name="__RequestVerificationToken"]/@value').extract_first()
logging.debug('THE FORM TOKEN IS: %s\n\n' % form_token)
formdata = {
"__RequestVerificationToken": form_token,
"hid_last": "SMITH",
"hid_first": "JOHN",
"hid_ml": "",
"hid_suffix": "",
"hid_business": "",
"hid_selectdate": "To Current Date",
"hid_datefromm": "",
"hid_datefromd": "",
"hid_datefromy": "",
"hid_datetom": "",
"hid_datetod": "",
"hid_datetoy": "",
"hid_partype": "",
"hid_borough": "All Boroughs/Counties",
"hid_doctype": "All Document Classes",
"hid_max_rows": "10",
"hid_page": "1",
"hid_partype_name": "All Parties",
"hid_doctype_name": "All Document Classes",
"hid_borough_name": "All Boroughs/Counties",
"hid_ReqID": "",
"hid_SearchType": "PARTYNAME",
"hid_ISIntranet": "N",
"hid_sort": ""
}
if form_token:
yield FormRequest(url="https://a836-acris.nyc.gov/DS/DocumentSearch/PartyNameResult",
method="POST",
formdata=formdata,
meta={'dont_redirect': True},
callback=self.parse_page)
def parse_page(self, response):
rows = response.selector.xpath('//form[@name="DATA"]/table/tbody/tr[2]/td/table/tbody/tr')
for row in rows:
item = AcrisItem()
borough = row.xpath('.//td[3]/div/font/text()').extract_first()
block = row.xpath('.//td[4]/div/font/text()').extract_first()
if borough and block:
item['borough'] = borough
item['block'] = block
yield item
这是输出(减去init消息)
^{pr2}$
禁止在
start_requests
上直接重定向。因此301
应该到达parse
方法,不幸的是您没有允许此响应状态代码通过。在允许它具有以下属性:
或者在请求中传递
^{pr2}$handle_httpstatus_all=True
元参数,如:相关问题 更多 >
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